4-Mercaptopyridine - ≥96% , CAS No.4556-23-4

CAS: 4556-23-4 Cat. No.: M118290 Molecular Weight: 111.16 Beilstein Registry Number: 21(2)35 EC Number: 224-926-1
AVAILABLE TO ORDER
GRADE & PURITY ≥96%
Synonyms
4-Pyridinethione | 4(1H)-Pyridinethione | Pyridine-4(1H)-thione | EINECS 224-926-1 | SCHEMBL73739 | EN300-100322 | 1-Methylindoline-5-sulfonyl chloride? | 4-PYRIDINETHIOL | BRN 0105869 | M0630 | MFCD00006422 | BRN 0105392 | FG-0489 | 4-Thiopyridine | AKOS
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
M118290-1g
3
$9.90
5g
M118290-5g
2
$29.90
25g
M118290-25g
1
$99.90
100g
M118290-100g
3
$289.90
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Why this grade

≥96% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C,Argon charged Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 34 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

It is used as a probe molecule to study the performance of the gold nanorod (AuNR)/polycaprolactone (PCL) fibrous mesh.

Specifications

Synonyms
4-Pyridinethione | 4(1H)-Pyridinethione | Pyridine-4(1H)-thione | EINECS 224-926-1 | SCHEMBL73739 | EN300-100322 | 1-Methylindoline-5-sulfonyl chloride? | 4-PYRIDINETHIOL | BRN 0105869 | M0630 | MFCD00006422 | BRN 0105392 | FG-0489 | 4-Thiopyridine | AKOS
Specifications & Purity
≥96%
Storage
Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥96%
Names and Identifiers
Pubchem Sid504760826
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504760826
Canonical SmilesC1=CNC=CC1=S
IUPAC Name1H-pyridine-4-thione
InChIKeyFHTDDANQIMVWKZ-UHFFFAOYSA-N
INCHI1S/C5H5NS/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7)
Isomeric SMILES C1=CNC=CC1=S
WGK Germany 3
RTECS UT8578000
Molecular Weight 111.16
Beilstein 21(2)35
Reaxy-Rn 105392
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=105392&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyridines and derivatives
SubclassHydropyridines
Intermediate Tree Nodes Not available
Direct ParentDihydropyridines
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Organosulfur compounds  Organopnictogen compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Dihydropyridine - Heteroaromatic compound - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dihydropyridines. These are compounds containing a dihydropyridine moiety, which is a semi-saturated pyridine derivative with two double bonds.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(non-human)
J774.A1 (2436 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

19 results found

Lot NumberCertificate TypeDateItem
D2610557Certificate of AnalysisMar 28, 2026 M118290
D2610556Certificate of AnalysisMar 28, 2026 M118290
D2610527Certificate of AnalysisMar 28, 2026 M118290
D2610526Certificate of AnalysisMar 28, 2026 M118290
D2108288Certificate of AnalysisJan 06, 2025 M118290
D2108285Certificate of AnalysisJan 06, 2025 M118290
D2108284Certificate of AnalysisJan 06, 2025 M118290
G2511056Certificate of AnalysisJan 15, 2024 M118290
E2529167Certificate of AnalysisJan 15, 2024 M118290
C2520195Certificate of AnalysisJan 15, 2024 M118290
A2429169Certificate of AnalysisJan 15, 2024 M118290
A2429167Certificate of AnalysisJan 15, 2024 M118290
A2429166Certificate of AnalysisJan 15, 2024 M118290
A2429165Certificate of AnalysisJan 15, 2024 M118290
I2505088Certificate of AnalysisJan 15, 2024 M118290
A2403087Certificate of AnalysisMar 15, 2021 M118290
K2202340Certificate of AnalysisMar 15, 2021 M118290
A2403089Certificate of AnalysisMar 15, 2021 M118290
A2403088Certificate of AnalysisMar 15, 2021 M118290

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Chemical and Physical Properties
SolubilitySoluble in Methanol
SensitivityHeat and Air Sensitive
Melt Point(°C)180°C
Molecular Weight111.170 g/mol
XLogP3-0.700
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass111.014 Da
Monoisotopic Mass111.014 Da
Topological Polar Surface Area44.100 Ų
Heavy Atom Count7
Formal Charge0
Complexity121.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Pei Zeng, Huan Zhang, Qi Guan, Qianqian Zhang, Xianzai Yan, Lili Yu, Luying Duan, Chunrong Wang.  (2023)  Constructing a 3D interconnected network of Ag nanostructures for high-performance SERS detection of food coloring agents.  Analytical Methods,  15  (44): (6088-6096).  [PMID:37933465] [10.1039/D3AY01515G]
2. Jia Li, Wei Peng, An Wang, Mingjie Wan, Yadong Zhou, Xia-Guang Zhang, Shangzhong Jin, Fan-Li Zhang.  (2023)  Highly sensitive and selective SERS substrates with 3D hot spot buildings for rapid mercury ion detection.  ANALYST,  148  (17): (4044-4052).  [PMID:37522852] [10.1039/D3AN00827D]
3. Zhi-Yong Guo, Chen Zhang, Lin-min Chen, Mei-huang Zeng, Qiu-hong Yao, Ting-Xiu Ye, He-zhou Luo, Xiao-mei Chen, Xi Chen.  (2023)  Design of competition nanoreactor with shell-isolated colloidal plasmonic nanomaterials for quantitative sensor platform.  TALANTA,      [PMID:37429252] [10.1016/j.talanta.2023.124861]
4. Hanlin Guo, Yu Li, Fuwei Pi.  (2023)  Sensitive and reproducible gold nanostar@metal–organic framework-based SERS membranes for the online monitoring of the freshness of shrimps.  ANALYST,  148  (9): (2081-2091).  [PMID:37009662] [10.1039/D3AN00147D]
5. Lin-Fang Li, Zhe Chen, Pai Liu, Yun-Hong Zhang.  (2022)  Direct Measurement of pH Evolution in Aerosol Microdroplets Undergoing Ammonium Depletion: A Surface-Enhanced Raman Spectroscopy Approach.  ENVIRONMENTAL SCIENCE & TECHNOLOGY,      [PMID:35476405] [10.1021/acs.est.1c08626]
6. Yue Zhang, Ji Zhou, Ying He, Yong Ye, Jing An.  (2022)  SERS active fibers from wet-spinning of alginate with gold nanoparticles for pH sensing.  SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,      [PMID:35042046] [10.1016/j.saa.2021.120848]
7. Zhiqi Zhao, Qiujin Li, Yu Dong, Jixian Gong, Zheng Li, Jianfei Zhang.  (2021)  Core-shell structured gold nanorods on thread-embroidered fabric-based microfluidic device for Ex Situ detection of glucose and lactate in sweat.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2021.131154]
8. Ze Fang, Nan Li, Zhiguo Zhao, Zhexin Zhu, Wangyang Lu, Fengtao Chen, Junjie Wang, Wenxing Chen.  (2021)  Bio-inspired strategy to enhance catalytic oxidative desulfurization by O-bridged diiron perfluorophthalocyanine axially coordinated with 4-mercaptopyridine.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2021.133569]
9. He Meng, Lin Jie, Akakuru Ozioma Udochukwu, Xu Xiawei, Li Yanying, Cao Yi, Xu Yanping, Wu Aiguo.  (2021)  Octahedral silver oxide nanoparticles enabling remarkable SERS activity for detecting circulating tumor cells.  Science China-Life Sciences,  65  (3): (561-571).  [PMID:34258713] [10.1007/s11427-020-1931-9]
10. Kan Li, Jing-jing Li, Ni Zhao, Ying Ma, Bin Di.  (2020)  Removal of Tetracycline in Sewage and Dairy Products with High-Stable MOF.  MOLECULES,  25  (6): (1312).  [PMID:32183050] [10.3390/molecules25061312]
11. Zhang-Na Qin, Jun Ding, Qiong-Wei Yu, Chu-Bo Qi, Dong-Mei Wu, Ping Zhou, Yu-Qi Feng.  (2020)  Development of C60-based labeling reagents for the determination of low-molecular-weight compounds by matrix assisted laser desorption ionization mass spectrometry (II): Determination of thiols in human serum.  ANALYTICA CHIMICA ACTA,      [PMID:32138909] [10.1016/j.aca.2020.01.027]
12. Kan Li, Jing-jing Li, Ni Zhao, Ting-ting Xie, Bin Di, Li-li Xu.  (2019)  Thioether-based recyclable metal–organic frameworks for selective and efficient removal of Hg2+ from water.  DALTON TRANSACTIONS,  48  (48): (17800-17809).  [PMID:31769766] [10.1039/C9DT03714D]
13. Peilan Wang, Yalei Zhou, Yanling Zhou, Ying Wen, Feng Wang, Haifeng Yang.  (2016)  In-situ growth of raspberry-like silver composites for Raman detection of acrylamide.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2016.12.056]
14. Yan Zhang, Wenqi Zhang, Lin Wang, Feng Wang, Haifeng Yang.  (2016)  Facile synthesis of AgCl/polydopamine/Ag nanoparticles with in-situ laser improving Raman scattering effect.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2016.09.072]
15. Jiaming Chen, Youju Huang, Palanisamy Kannan, Lei Zhang, Zhenyu Lin, Jiawei Zhang, Tao Chen, Longhua Guo.  (2016)  Flexible and Adhesive Surface Enhance Raman Scattering Active Tape for Rapid Detection of Pesticide Residues in Fruits and Vegetables.  ANALYTICAL CHEMISTRY,      [PMID:26810698] [10.1021/acs.analchem.5b03735]
16. Yuanjie Teng, Wenhan Liu, Minbo Lan, Suzhen Ma, Chunan Ma.  (2016)  Porous and Dendritic Structure of Screen-Printed Electrode for in-situ Electrochemical Surface-Enhanced Raman Scattering.  ANALYTICAL LETTERS,      [PMID:] [10.1080/00032719.2015.1070164]
17. Yao Chen, Zeng-Ping Chen, Qi Zuo, Cai-Xia Shi, Ru-Qin Yu.  (2015)  Surface-enhanced Raman spectroscopy based on conical holed enhancing substrates.  ANALYTICA CHIMICA ACTA,      [PMID:26320784] [10.1016/j.aca.2015.07.025]
18. Peilan Wang, Yanling Zhou, Ying Wen, Feng Wang, Haifeng Yang.  (2015)  In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate.  RSC Advances,  (46): (36368-36373).  [PMID:] [10.1039/C5RA03481G]
19. Lei Zhang, Liwei Dai, Yun Rong, Zhenzhong Liu, Dingyi Tong, Youju Huang, Tao Chen.  (2015)  Light-Triggered Reversible Self-Assembly of Gold Nanoparticle Oligomers for Tunable SERS.  LANGMUIR,      [PMID:25540841] [10.1021/la504365b]
20. Ting Xu, Zihan Xue, Xinhui Li, Miaomiao Zhang, Ruige Yang, Shangshang Qin, Yong Guo.  (2025)  Development of Membrane-Targeting Osthole Derivatives Containing Pyridinium Quaternary Ammonium Moieties with Potent Anti-Methicillin-Resistant Staphylococcus aureus Properties.  JOURNAL OF MEDICINAL CHEMISTRY,      [PMID:40205941] [10.1021/acs.jmedchem.4c03167]
21. Xiaoming Li, De Zhang, Yufeng Wang, Jie Huang, Qianmin Dong, Shangzhong Jin, Pei Liang.  (2024)  Dual trace detection of hazardous substances by aptamer-functionalized gold nanofilms based on surface-enhanced Raman spectroscopy.  Surfaces and Interfaces,      [PMID:] [10.1016/j.surfin.2024.105438]
22. Bin Zhang, Yiquan Liao, Yichang He, Minggang Zhao, Ye Ma.  (2024)  Electro-assembled Au NP array at liquid-liquid interface for dual-mode sensing of heavy metal ions.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2024.135428]
23. Yun Wu, Meiqi Wang, Ying Gu, Kun Ge.  (2024)  Miniaturized thermal purge-and-trap device combined with self-calibration colorimetric/SERS dual-model optical sensors for highly rapid and selective detection of sulfur dioxide in wine.  Food Chemistry-X,      [PMID:39758078] [10.1016/j.fochx.2024.102091]
24. Yuhui Liu, Alei Dang, Xin Liu, Xiangkai Wang, Amir Zada, Jiahe Chen, Xiaoyi Fan, Tingkai Zhao, Jing Li, Tiehu Li.  (2024)  Recyclable MXene film as SERS sensor with high sensitivity and flexibility adjusted with ZnO quantum dots.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2024.136685]
25. Cong Lili, Shen Yanting, Wang Jiaqi, Meng Fanxiang, Xu Weiqing, Sun Weixia, Xu Shuping.  (2024)  Revealing mitochondrial microenvironmental changes triggered by ferroptosis regulation.  ANALYTICAL AND BIOANALYTICAL CHEMISTRY,      [PMID:39535559] [10.1007/s00216-024-05638-6]
26. Feng Chen, Mingfu Zhao, Bin Zhang, Minggang Zhao, Ye Ma.  (2024)  Surface Plasmon Resonance-Enhanced CdS/FTO Heterojunction for Cu2+ Detection.  SENSORS,  24  (12): (3809).  [PMID:38931593] [10.3390/s24123809]
27. Yujiao Xie, Chao Chen, Chenguang Zhang, Lei Xu, Zihou Li, Wenzhi Ren, Xiawei Xu, Yong Ren, Jie Lin, Aiguo Wu.  (2024)  Synergistic enhancement of ultrahigh SERS activity via Cu2O@Ag Core-Shell structure for accurate label-free identification of breast tumor subtypes.  Nano Today,      [PMID:] [10.1016/j.nantod.2023.102140]
28. Yuhui Liu, Alei Dang, Xin Liu, Yanying Han, Jiahe Chen, Amir Zada, Yiting Sun, Zeqi Yuan, Fa Luo, Tiehu Li, Tingkai Zhao.  (2024)  Synergistic Resonances and Charge Transfer in Double-Shelled ZnO Hollow Microspheres for High-Performance Semiconductor-Based SERS Substrates.  ACS Applied Nano Materials,      [PMID:] [10.1021/acsanm.4c00413]
29. Jianghui Zheng, Cuicui Fang, Mengyu Tao, Bingyong Lin, Yueliang Wang, Yuanyuan Yao, Lifen Chen, Hong Huang, Jianguo Xu, Longhua Guo.  (2025)  Synchronized SERS-temperature dual signals generated from the same incident light for Immunochromatography assay of microcystin LR in aquatic products.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.115195]
30. Yangyang Xu, Xiao-song Zhu, Yi-wei Shi.  (2025)  Gold nanoparticles-enhanced hollow fiber surface plasmon resonance sensor for highly sensitive detection of mercury(II) ions.  ANALYST,      [PMID:40916804] [10.1039/D5AN00780A]
31. Guoqian Li, Langlang Yi, Shiya Zhang, Qin Song, Minghui Liang, Zhihui Guan, Yao Zhang, Yuan Zhuang, Bo Hou, Xinyuan Wang, Xiaoyao Wu, Pengju Yin, Klyuyev Dmitriy, Jiang Yang, Bo Hu, Jie Tian.  (2025)  Concentration Indicator Kit Based on Dandelion Propagation-Inspired SERS Strategy.  ADVANCED MATERIALS,      [PMID:40534383] [10.1002/adma.202502162]
32. Xiong Zhao, Junying Zhang, Jing Li, Ping Qiu.  (2025)  Experimental and theoretical research of three pyridine derivatives as corrosion inhibitors on steel in HCl acid solution.  ANTI-CORROSION METHODS AND MATERIALS,      [PMID:] [10.1108/ACMM-04-2024-3012]
33. Jiahao Zhang, Lei Xu, Yue Hu, Li Sun, Yujiao Xie, Xinyu Miao, Aochi Liu, Zhiwei Hou, Yixing Gou, Aiguo Wu, Jie Lin.  (2025)  Integrating Inertial Microfluidics with SERS Bioprobe for Efficient Enrichment and Accurate Identification of Tumor Cells in Gastric Fluid and Ascites.  ANALYTICAL CHEMISTRY,      [PMID:40377502] [10.1021/acs.analchem.5c01428]
34. Shaorui Qi, Lei Sun, Fansheng Meng, Guimei Shi, Yunlong Sun, Bo Jiang, Junbo Li, Yukihiro Ozaki, Wei Ji.  (2026)  Charge-Transfer-Driven Enantioselective Surface-Enhanced Raman Scattering on a ZIF-8/ZnS Heterojunction: A Chiral-Label-Free Biosensor for Quantification of Urinary Lactate Enantiomeric Excess.  ACS Sensors,      [PMID:41568656] [10.1021/acssensors.5c03836]
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