Category: pyridine-derivatives

Electric Literature of 1196152-34-7, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1196152-34-7, name is 2-Bromo-6-methoxypyridin-4-amine, molecular formula is C6H7BrN2O, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

Example 1 2-[(2-Bromo-6-methoxypyridin-4-ylamino)methyl]phenol Synthesis according to Scheme 1, Method 1a 400 mg (1.97 mmol) of 2-bromo-6-methoxypyridin-4-ylamine (starting materials 1) are added to a mixture of 363 mg (2.96 mmol, 1.5 eq) of 2-hydroxybenzaldehyde (starting materials 2) and 184 mg (2.96 mmol, 1.5 eq) of acetic acid in 10 mL of THF in the presence of molecular sieve. After 5 minutes at ambient temperature, 835 mg (3.94 mmol, 2 eq) of sodium triacetoxyborohydride are added and the mixture is left to stir for 2H at ambient temperature. The reaction medium is diluted with 50 mL of ethyl acetate and then the mixture is washed with 50 mL of a saturated solution of ammonium chloride, followed by three times 50 mL of water. The organic phase is concentrated to dryness and the residue is purified by silica chromatography, elution being carried out with a mixture of heptane/ethyl acetate (7/3). 2-[(2-Bromo-6-methoxypyridin-4-ylamino)methyl]phenol is obtained in the form of a beige solid. Melting point=137 C. NMR 1H (DMSO) 3.69 (s, 3H); 4.17 (d, 2H, J=5.2 Hz); 5.81 (s, 1H); 6.45 (s, 1H) 6.75 (t, 1H, J=7.4 Hz); 6.82 (d, 1H, J=8 Hz); 7.07 (t, 1H, J=7.7 Hz); 7.12 (d, 1H, J=7.4 Hz); 7.17-7.19 (m, 1H); 9.64 (s, 1H).

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1196152-34-7, 2-Bromo-6-methoxypyridin-4-amine.

Reference:
Patent; GALDERMA RESEARCH & DEVELOPMENT; Poinsard, Cedric; Collette, Pascal; Mauvais, Pascale; Linget, Jean-Michel; Rethore, Sandrine; US2013/178633; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 56673-34-8 ,Some common heterocyclic compound, 56673-34-8, molecular formula is C5H4BrNS, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

To a solution of 5-bromopyridine-2-thiol (3.9 g) in THE (100 mL) was added NaH (1.24 g) at 0C and the mixture was stirred at 0C for 30 minutes. Then (bromomethyl)cyclopropane (2.79 g) was added. The mixture was allowed to warm to RT and stirred for 6 hours. The mixture was poured into ice water (200 mL) and extracted with EA (100 mL x 3). The combined organic phases were washed with brine(50 mL) and then dried over Na2504. After filtration and evaporation of the solvent, the residue was purified by SGC (eluent: PE) to provide the subtitle compound. MS ESI:m/z = 244 [M+H].

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,56673-34-8, its application will become more common.

Reference:
Patent; SANOFI; SCHWINK, Lothar; BUNING, Christian; GLOMBIK, Heiner; GOSSEL, Matthias; KADEREIT, Dieter; HALLAND, Nis; LOHMANN, Matthias; POeVERLEIN, Christoph; RITTER, Kurt; WO2015/150565; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

1072-97-5, Name is 5-Bromopyridin-2-amine, molecular formula is C5H5BrN2, belongs to pyridine-derivatives compound, is a common compound. In a patnet, author is Pour, Ghobad Behzadi, once mentioned the new application about 1072-97-5, Category: pyridine-derivatives.

Polyvinylpyridine (PVPy) is a linearly structured polymer-containing aromatic heterocyclic compound. PVPy is easily prepared via radical polymerization of vinylpyridine using an initiator of azobisisobutyronitrile in which different haloalkanes can be used for the quaternization of pyridine units. The pyridine moieties of the polymer backbone can lead to an enhanced electrical conductivity in this polymeric material. For this reason, this vinyl polymer has been extensively applied in electrode organization for electrochemical applications. Thus, we aimed to review the uses of PVPy in the electrode structure and/or its application for the modification of electrochemical electrodes in systems such as sensors for monitoring and determining humidity and various chemicals.

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Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Synthesis of a crystallochromic indolizine dye by a base- and catalyst-free photochemical route WOS:000485913000014 published article about CONFORMATIONAL POLYMORPHISM; PHOTOPHYSICAL PROPERTIES; EFFICIENT SYNTHESIS; OPTICAL-PROPERTIES; CASCADE APPROACH; COLOR; CHROMOPHORES; HETEROCYCLES in [Dohmen, Christoph; Ihmels, Heiko; Kreienmeier, Rouven] Univ Siegen, Dept Chem Biol Organ Chem 2, Adolf Reichwein Str 2, D-57068 Siegen, Germany; [Patrick, Brian O.] Univ British Columbia, Dept Chem, Struct Chem Facil, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada in 2019.0, Cited 64.0. SDS of cas: 91-02-1. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1

Indolizine derivatives are obtained by irradiation of 2-benzoyl-N-benzylpyridinium derivatives and dimethyl acetylene dicarboxylate, thus providing a competitive and complementary base- and catalyst-free synthesis. With this method, the first example of a crystallochromic indolizine is presented, whose color in the solid state depends on the out-of-plane torsion of the benzoyl substituent.

SDS of cas: 91-02-1. Welcome to talk about 91-02-1, If you have any questions, you can contact Dohmen, C; Ihmels, H; Kreienmeier, R; Patrick, BO or send Email.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

I found the field of Chemistry; Physics very interesting. Saw the article Diverse reactivity to hypochlorite and copper ions based on a novel Schiff base derived from vitamin B6 cofactor published in 2020.0. Formula: C8H10ClNO3, Reprint Addresses Zheng, YH (corresponding author), South China Normal Univ, Sch Chem, Guangzhou 510006, Peoples R China.. The CAS is 65-22-5. Through research, I have a further understanding and discovery of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

A new Schiff base receptor (2-amino-3-(((3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methylene) amino)maleonitrile (GAL)) has been synthesized and such diaminomaleonitrile-based molecular framework is observed to be water soluble. GAL possesses both colorimetric and off-on fluorescent response in the presence of ClO-. The response time has been controlled within 6 min. The limit of detection (LOD) has been calculated to be 47.5 nM. The addition of Cu2+ can only induce clear color evolution from pale to deep yellow (LOD: 0.22 mu M) and no fluorescence changes are found. Moreover, its reliability and practicality are verified via the determination of ClO- in spiked samples of tap water and pond water. The exploration of bioactive vitamin B6 cofactor as a sensing platform will open a new way for multiple target recognition in competitive mediums. (C) 2020 Elsevier B.V. All rights reserved.

Formula: C8H10ClNO3. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Li, XQ; Wen, Q; Gu, JP; Liu, WQ; Wang, QM; Zhou, GF; Gao, JW; Zheng, YH or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. In 2020.0 J PHOTOCH PHOTOBIO A published article about DUAL-CHANNEL RECOGNITION; MOLECULAR LOGIC GATES; TURN-ON SENSOR; FLUORESCENT SENSOR; AQUEOUS-MEDIA; COLORIMETRIC SENSOR; SCHIFF-BASE; CYANIDE; CHEMOSENSOR; MAGNESIUM in [Yuwen, Zhiyang; Li, Hui; Pu, Shouzhi] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Jiangxi, Peoples R China; [Mei, Hongxin] Nanchang Normal Univ, Dept Chem, Nanchang 330013, Jiangxi, Peoples R China in 2020.0, Cited 70.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5.

A chemical sensor composed of pyridoxal hydrochloride schiff base based on diarylethene (1O) was synthesized. Its photochemical properties and selectivity to ions were further studied. The chemosensor could detect cyanide effectively and is almost undisturbed by other ions. When titrating CN-, the reaction aroused a distinct change in the absorption spectrum with the color change from transparent to yellow, and the fluorescence intensity centered at 562 nm was increased 68 folds. It also exhibited a good fluorescence sensing of Mg(2+ )with high selectivity and sensitivity. Upon addition of Mg2+, its emission intensity enhanced 110 folds, with the color change from dark to bright blue. Its good spectral response could be applied to molecular logic circuit. Moreover, the chemosensor could be made into test paper strips for the qualitative and quantitative detection of CN- and Mg2+.

Welcome to talk about 65-22-5, If you have any questions, you can contact Yuwen, ZY; Mei, HX; Li, H; Pu, SZ or send Email.. Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Safety of Phenyl(pyridin-2-yl)methanone. Recently I am researching about GEM-DISUBSTITUTED ALKENES; C=C BOND-CLEAVAGE; C DOUBLE-BOND; SELECTIVE OXIDATION; EFFICIENT; HYDROGENATION; OZONOLYSIS; QUINOLINES; CATALYSTS; COMPLEX, Saw an article supported by the 111 ProjectMinistry of Education, China – 111 Project [D20015]; Natural Science Foundation of Hubei Province of ChinaNatural Science Foundation of Hubei Province [2018CFB241]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Yu, T; Guo, MQ; Wen, SMM; Zhao, RR; Wang, JL; Sun, YL; Liu, QX; Zhou, HF. The CAS is 91-02-1. Through research, I have a further understanding and discovery of Phenyl(pyridin-2-yl)methanone

A simple, and practical oxidative scission of aromatic olefins to carbonyl compounds using O-2 as the sole oxidant with poly(ethylene glycol) dimethyl ether as a benign solvent has been developed. A wide range of monosubstituted, gem-disubstituted, 1,2-disubstituted, trisubstituted and tetrasubstituted aromatic olefins was successfully converted into the corresponding aldehydes and ketones in excellent yields even with gram-scale reaction. Some control experiments were also conducted to support a possible reaction pathway.

Bye, fridends, I hope you can learn more about C12H9NO, If you have any questions, you can browse other blog as well. See you lster.. Safety of Phenyl(pyridin-2-yl)methanone

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Dohmen, C; Ihmels, H; Kreienmeier, R; Patrick, BO in ROYAL SOC CHEMISTRY published article about CONFORMATIONAL POLYMORPHISM; PHOTOPHYSICAL PROPERTIES; EFFICIENT SYNTHESIS; OPTICAL-PROPERTIES; CASCADE APPROACH; COLOR; CHROMOPHORES; HETEROCYCLES in [Dohmen, Christoph; Ihmels, Heiko; Kreienmeier, Rouven] Univ Siegen, Dept Chem Biol Organ Chem 2, Adolf Reichwein Str 2, D-57068 Siegen, Germany; [Patrick, Brian O.] Univ British Columbia, Dept Chem, Struct Chem Facil, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada in 2019.0, Cited 64.0. Recommanded Product: Phenyl(pyridin-2-yl)methanone. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1

Indolizine derivatives are obtained by irradiation of 2-benzoyl-N-benzylpyridinium derivatives and dimethyl acetylene dicarboxylate, thus providing a competitive and complementary base- and catalyst-free synthesis. With this method, the first example of a crystallochromic indolizine is presented, whose color in the solid state depends on the out-of-plane torsion of the benzoyl substituent.

Welcome to talk about 91-02-1, If you have any questions, you can contact Dohmen, C; Ihmels, H; Kreienmeier, R; Patrick, BO or send Email.. Recommanded Product: Phenyl(pyridin-2-yl)methanone

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Fatty acids in the de novo lipogenesis pathway and incidence of type 2 diabetes: A pooled analysis of prospective cohort studies WOS:000559724500001 published article about CORONARY-HEART-DISEASE; BETA-CELL TURNOVER; ADIPOSE-TISSUE; COFFEE CONSUMPTION; PLASMA; RISK; ASSOCIATION; BIOMARKERS; CANCER; PHOSPHOLIPIDS in [Imamura, Fumiaki; Koulman, Albert; Wareham, Nick J.; Forouhi, Nita G.] Univ Cambridge, MRC Epidemiol Unit, Cambridge, England; [Fretts, Amanda M.] Univ Washington, Dept Epidemiol, Cardiovasc Hlth Res Unit, Seattle, WA 98195 USA; [Marklund, Matti; Riserus, Ulf] Uppsala Univ, Dept Publ Hlth & Caring Sci, Clin Nutr & Metab, Uppsala, Sweden; [Marklund, Matti; Wu, Jason H. Y.] Univ New South Wales, George Inst Global Hlth, Fac Med, Sydney, NSW, Australia; [Marklund, Matti; Micha, Renata; Mozaffarian, Dariush] Tufts Univ, Friedman Sch Nutr Sci & Policy, Boston, MA 02111 USA; [Ardisson Korat, Andres V.; Hu, Frank] Harvard TH Chan Sch Publ Hlth, Dept Nutr & Epidemiol, Boston, MA USA; [Ardisson Korat, Andres V.; Hu, Frank; Sun, Qi] Brigham & Womens Hosp, Dept Med, Channing Div Network Med, 75 Francis St, Boston, MA 02115 USA; [Ardisson Korat, Andres V.; Djousse, Luc; Hu, Frank; Sun, Qi] Harvard Med Sch, Boston, MA 02115 USA; [Yang, Wei-Sin; Chien, Kuo-Liong; Chen, Yun-yu] Natl Taiwan Univ, Inst Epidemiol & Prevent Med, Coll Publ Hlth, Taipei, Taiwan; [Lankinen, Maria; Virtanen, Jyrki K.; Tuomainen, Tomi-Pekka; Uusitupa, Matti] Univ Eastern Finland, Inst Publ Hlth & Clin Nutr, Kuopio, Finland; [Qureshi, Waqas] Wake Forest Univ, Sch Med, Dept Internal Med, Sect Cardiovasc Med, Winston Salem, NC 27101 USA; [Helmer, Catherine; Rajaobelina, Kalina; Samieri, Cecilia] Univ Bordeaux, Bordeaux Populat Hlth Res Ctr, INSERM, UMR 1219, Bordeaux, France; [Chen, Tzu-An; Wood, Alexis C.; Senn, Mackenzie] USDA ARS, Childrens Nutr Res Ctr, Dept Pediat, Baylor Coll Med, Houston, TX USA; [Wong, Kerry; Bassett, Julie K.; Giles, Graham G.; Hodge, Allison] Canc Council Victoria, Canc Epidemiol Div, Melbourne, Vic, Australia; [Murphy, Rachel] Univ British Columbia, Sch Populat Publ & Hlth, Ctr Excellence Canc Prevent, Fac Med, Vancouver, BC, Canada; [Tintle, Nathan] Dordt Univ, Dept Math & Stat, Sioux Ctr, IA USA; [Yu, Chaoyu Ian; McKnight, Barbara] Univ Washington, Sch Publ Hlth, Dept Biostat, Seattle, WA 98195 USA; [Brouwer, Ingeborg A.] Vrije Univ Amsterdam, Amsterdam Publ Hlth Res Inst, Dept Hlth Sci, Fac Sci, Amsterdam, Netherlands; [Chien, Kuo-Liong; Chen, Yun-yu] Taipei Vet Gen Hosp, Div Cardiol, Dept Med, Taipei, Taiwan; [del Gobbo, Liana C.] Stanford Univ, Sch Med, Dept Med, Div Cardiovasc Med, Stanford, CA 94305 USA; [Djousse, Luc] Brigham & Womens Hosp, Dept Med, Div Aging, 75 Francis St, Boston, MA 02115 USA; [Geleijnse, Johanna M.; de Goede, Janette; Soedamah-Muthu, Sabita S.] Wageningen Univ, Div Human Nutr & Hlth, Wageningen, Netherlands; [Giles, Graham G.; Hodge, Allison] Univ Melbourne, Ctr Epidemiol & Biostat, Parkville, Vic, Australia; [Giles, Graham G.] Monash Univ, Sch Clin Sci Monash Hlth, Precis Med, Clayton, Vic, Australia; [Gudnason, Vilmundur] Iceland Heart Assoc Res Inst, Kopavogur, Iceland; [Harris, William S.] Univ South Dakota, Sanford Sch Med, Dept Internal Med, Sioux Falls, SD USA; [Harris, William S.] OmegaQuant Analyt, Sioux Falls, SD USA; [Koulman, Albert] Univ Cambridge, Natl Inst Hlth Res, Addenbrookes Hosp, Biomed Res Ctr,Core Nutr Biomarker Lab, Cambridge, England; [Koulman, Albert] Univ Cambridge, Natl Inst Hlth Res, Addenbrookes Hosp, Biomed Res Ctr,Core Metabol & Lipid Lab, Cambridge, England; [Koulman, Albert] MRC, Elsie Widdowson Lab, Cambridge, England; [Laakso, Markku] Univ Eastern Finland, Inst Clin Med, Internal Med, Kuopio, Finland; [Laakso, Markku] Kuopio Univ Hosp, Dept Med, Kuopio, Finland; [Lind, Lars] Uppsala Univ, Dept Med Sci, Uppsala, Sweden; [Lin, Hung-Ju] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan; [Robinson, Jennifer G.] Univ Iowa, Coll Publ Hlth, Dept Epidemiol, Prevent Intervent Ctr, Iowa City, IA USA; [Siscovick, David S.] New York Acad Med, New York, NY USA; [Soedamah-Muthu, Sabita S.] Tilburg Univ, Dept Med & Clin Psychol, Ctr Res Psychol & Somat Disorders, Tilburg, Netherlands; [Soedamah-Muthu, Sabita S.] Univ Reading, Inst Food Nutr & Hlth, Reading, Berks, England; [Sotoodehnia, Nona; Lemaitre, Rozenn N.] Univ Washington, Dept Med, Cardiovasc Hlth Res Unit, Seattle, WA USA; [Tsai, Michael Y.] Univ Minnesota, Dept Lab Med & Pathol, Minneapolis, MN 55455 USA; [Wagenknecht, Lynne E.] Wake Forest Sch Med, Publ Hlth Sci, Winston Salem, NC 27101 USA in 2020.0, Cited 47.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5. Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Background De novo lipogenesis (DNL) is the primary metabolic pathway synthesizing fatty acids from carbohydrates, protein, or alcohol. Our aim was to examine associations of in vivo levels of selected fatty acids (16:0, 16:1n7, 18:0, 18:1n9) in DNL with incidence of type 2 diabetes (T2D). Methods and findings Seventeen cohorts from 12 countries (7 from Europe, 7 from the United States, 1 from Australia, 1 from Taiwan; baseline years = 1970-1973 to 2006-2010) conducted harmonized individual-level analyses of associations of DNL-related fatty acids with incident T2D. In total, we evaluated 65,225 participants (mean ages = 52.3-75.5 years; % women = 20.4%62.3% in 12 cohorts recruiting both sexes) and 15,383 incident cases of T2D over the 9-year follow-up on average. Cohort-specific association of each of 16:0, 16:1n7, 18:0, and 18:1n9 with incident T2D was estimated, adjusted for demographic factors, socioeconomic characteristics, alcohol, smoking, physical activity, dyslipidemia, hypertension, menopausal status, and adiposity. Cohort-specific associations were meta-analyzed with an inverse-varianceweighted approach. Each of the 4 fatty acids positively related to incident T2D. Relative risks (RRs) per cohort-specific range between midpoints of the top and bottom quintiles of fatty acid concentrations were 1.53 (1.41-1.66; p< 0.001) for 16:0, 1.40 (1.33-1.48; p< 0.001) for 16:1n-7, 1.14 (1.05-1.22; p = 0.001) for 18:0, and 1.16 (1.07-1.25; p< 0.001) for 18:1n9. Heterogeneity was seen across cohorts (I-2 = 51.1%-73.1% for each fatty acid) but not explained by lipid fractions and global geographical regions. Further adjusted for triglycerides (and 16:0 when appropriate) to evaluate associations independent of overall DNL, the associations remained significant for 16:0, 16:1n7, and 18:0 but were attenuated for 18:1n9 (RR = 1.03, 95% confidence interval (CI) = 0.94-1.13). These findings had limitations in potential reverse causation and residual confounding by imprecisely measured or unmeasured factors. Conclusions Concentrations of fatty acids in the DNL were positively associated with T2D incidence. Our findings support further work to investigate a possible role of DNL and individual fatty acids in the development of T2D. Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Bye, fridends, I hope you can learn more about C8H10ClNO3, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Name: Ethyl nicotinate. Authors Liu, JJ; Chen, JY; Li, SS; Tian, WN; Wu, HG; Han, BZ in TAYLOR & FRANCIS INC published article about in [Liu, Jingjing; Li, Shuangshi; Tian, Weina] Beijing Polytech, Sch Bioengn, Dept Food Technol, Beijing, Peoples R China; [Chen, Jingyu; Han, Beizhong] China Agr Univ, Coll Food Sci & Nutr Engn, Beijing Lab Food Qual & Safety, Beijing, Peoples R China; [Wu, Haigang] Henan Univ, Sch Life Sci, Kaifeng, Henan, Peoples R China in 2021, Cited 32. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Sufu is a pleasant-tasting, traditional Chinese fermented soybean food that is rich in nutrients. In this study, the changes of volatile and nonvolatile metabolites in sufu fermented by bacillus licheniformis, were investigated. The results indicated that a total of 55 kinds of nonvolatile compounds were detected, including 2 carbohydrates, 4 alcohols, 17 amino acids, 18 organic acids, 6 biogenic amines, and 8 other substances. Furthermore, a total of 58 volatile compounds identified were composed of 11 esters, 16 alcohols, 10 acids, and 21 miscellaneous compounds. Inoculation of bacillus licheniformis enriched the metabolite pro?le of sufu and improved its functionality and safety of edibility. It was observed that the pure fermented starter resulted in controlled acceleration of sufu maturation.

Name: Ethyl nicotinate. Welcome to talk about 614-18-6, If you have any questions, you can contact Liu, JJ; Chen, JY; Li, SS; Tian, WN; Wu, HG; Han, BZ or send Email.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem