4-Mercaptopyridine
- Product Name
- 4-Mercaptopyridine
- CAS No.
- 4556-23-4
- Chemical Name
- 4-Mercaptopyridine
- Synonyms
- NOLA-009;NSC 76036;4-Thiopyridine;4-PYRIDINETHIOL;4-Pyridimethiol;Mercaptopyridine;Pyridine-4-thiol;4-Mecaptopyridine;4-mercatopyridine;4-Sulfanylpyridine
- CBNumber
- CB2748207
- Molecular Formula
- C5H5NS
- Formula Weight
- 111.16
- MOL File
- 4556-23-4.mol
4-Mercaptopyridine Property
- Melting point:
- 182-189 °C
- Boiling point:
- 194.0±13.0 °C(Predicted)
- Density
- 1.161 (estimate)
- refractive index
- 1.5605 (estimate)
- storage temp.
- 2-8°C
- solubility
- DMSO, Methanol
- pka
- pK1:1.43(＋1);pK2:8.86(0) (20°C)
- form
- Crystalline Powder
- color
- Yellow to yellow-green or brown
- InChI
- InChI=1S/C5H5NS/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7)
- InChIKey
- FHTDDANQIMVWKZ-UHFFFAOYSA-N
- SMILES
- C1=NC=CC(S)=C1
- CAS DataBase Reference
- 4556-23-4(CAS DataBase Reference)
- NIST Chemistry Reference
- 4-Pyridinethiol(4556-23-4)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-37/39-24/25
- WGK Germany
- 3
- RTECS
- UT8578000
- HS Code
- 29333990
- Storage Class
- 11 - Combustible Solids
- Hazard Classifications
- Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 148202
- Product name
- 4-Mercaptopyridine
- Purity
- 95%
- Packaging
- 1g
- Price
- $37.62
- Updated
- 2025/07/31
- Product number
- 148202
- Product name
- 4-Mercaptopyridine
- Purity
- 95%
- Packaging
- 10g
- Price
- $209.84
- Updated
- 2025/07/31
- Product number
- M0630
- Product name
- 4-Mercaptopyridine
- Purity
- >97.0%(T)
- Packaging
- 5g
- Price
- $86
- Updated
- 2025/07/31
- Product number
- M0630
- Product name
- 4-Mercaptopyridine
- Purity
- >97.0%(T)
- Packaging
- 25g
- Price
- $235
- Updated
- 2025/07/31
- Product number
- M225500
- Product name
- 4-Mercaptopyridine
- Packaging
- 1g
- Price
- $45
- Updated
- 2021/12/16
4-Mercaptopyridine Chemical Properties,Usage,Production
Chemical Properties
4-Mercaptopyridine is Yellow to light yellow crystalline powder
Uses
4-Mercaptopyridine is a pyridine derivative used as a redox reagents for the in vitro refolding of a recombinantly expressed single-chain Fv fragment (scFvOx). Used in studies along with thiosulfate to measure alliinase activity.
Uses
mercaptopyridine is also known as sodium pyrithione. It is a preservative that is not commoly used.
Uses
4-Mercaptopyridine was used as a probe molecule to study the performance of the gold nanorod (AuNR)/polycaprolactone (PCL) fibrous mesh.
Purification Methods
Purify the thiol by dissolving ~45g in boiling H2O (100mL) (charcoal), filter and precipitate it by adding 50% aqueous NaOH (~80mL) to pH ~6. Dissolve the precipitate in EtOH, evaporate it to dryness, then crystallise it from boiling EtOH (~100mL, charcoal) to give yellow flat hexagonal plates (m 186o). It sublimes readily in vacuo. [King & Ware J Chem Soc 873 1939.] The picrate forms yellow needles from H2O with m 222o(dec). The 4-methylmercaptopyridine derivative crystallises from pet ether (m 47o , also 44-45o was reported, with a pK2 0 of 5.97) and was prepared by treatment with MeI/NaOH. Its picrate has m 2 4 5o (from H2O, MeOH or EtOH). The N-methyl-4-pyridinethiol derivative has m 168.5-170o (from EtOH), a pK2 0 of 1.30 and is soluble in CHCl3. [Albert & Barlin J Chem Soc 2384 1959, Beilstein 21 II 35, 22 III/IV 373, 22/7 V 147.]
4-Mercaptopyridine Preparation Products And Raw materials
Raw materials
Preparation Products
4-Mercaptopyridine Suppliers
- Tel
- 0635-6725226 15863541132
- Fax
- 0635-6724075
- yglida@163.com
- Country
- China
- ProdList
- 61
- Advantage
- 65
- Tel
- 18210857532; 18210857532
- Fax
- 86-10-82849933
- jkinfo@jkchemical.com
- Country
- China
- ProdList
- 96815
- Advantage
- 76
- Tel
- 4006356688 18621169109
- Fax
- 86-21-61259102
- market03@meryer.com
- Country
- China
- ProdList
- 40228
- Advantage
- 62
- Tel
- +49 3493/605464
- Fax
- +49 3493/605470
- sales@intatrade.de
- Country
- Germany
- ProdList
- 3572
- Advantage
- 66
- Tel
- 021-67121386
- Fax
- 021-67121385
- Sales-CN@TCIchemicals.com
- Country
- China
- ProdList
- 24529
- Advantage
- 81
- Tel
- 400-021-7337 2355568890
- Fax
- 0086-21-50182339
- sales@demochem.com
- Country
- China
- ProdList
- 2572
- Advantage
- 57
- Tel
- 010-60275820 13031183356
- Fax
- 010-60270825
- elainezt@sina.com
- Country
- China
- ProdList
- 1390
- Advantage
- 62
- Tel
- 010-89508211 18501085097
- Fax
- 010-89508210
- sales.bj@hwrkchemical.com
- Country
- China
- ProdList
- 9401
- Advantage
- 55
- Tel
- 021-021-58432009 400-005-6266
- Fax
- 021-58436166
- sales8178@energy-chemical.com
- Country
- China
- ProdList
- 44801
- Advantage
- 61
- Tel
- 0311-89250318 031166536426
- Fax
- 4000311741
- master@sjzsdyn.com
- Country
- China
- ProdList
- 2760
- Advantage
- 65
View Lastest Price from 4-Mercaptopyridine manufacturers
- Product
- 4-Mercaptopyridine 4556-23-4
- Price
- US $0.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 1000kgs
- Release date
- 2021-11-10
- Product
- 4-Mercaptopyridine 4556-23-4
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-06-27
- Product
- 4-pyridinethiol 4556-23-4
- Price
- US $90.00/g
- Min. Order
- 10g
- Purity
- 99.8%
- Supply Ability
- 10tons
- Release date
- 2020-04-26