4-Mercaptopyridine
- CAS No.
- 4556-23-4
- Chemical Name:
- 4-Mercaptopyridine
- Synonyms
- NOLA-009;NSC 76036;4-Thiopyridine;4-PYRIDINETHIOL;4-Pyridimethiol;Pyridine-4-thiol;Mercaptopyridine;4-Mecaptopyridine;4-mercatopyridine;4-Sulfanylpyridine
- CBNumber:
- CB2748207
- Molecular Formula:
- C5H5NS
- Molecular Weight:
- 111.16
- MOL File:
- 4556-23-4.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/6/8 17:06:38
| 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 |
| InChIKey | FHTDDANQIMVWKZ-UHFFFAOYSA-N |
| CAS DataBase Reference | 4556-23-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Pyridinethiol(4556-23-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-37/39-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UT8578000 | |||||||||
| HS Code | 29333990 | |||||||||
| NFPA 704 |
|
4-Mercaptopyridine price More Price(4)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 148202 | 4-Mercaptopyridine 95% | 4556-23-4 | 1G | ₹5574.88 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 148202 | 4-Mercaptopyridine 95% | 4556-23-4 | 10G | ₹18770.55 | 2022-06-14 | Buy |
| TCI Chemicals (India) | M0630 | 4-Mercaptopyridine | 4556-23-4 | 5G | ₹5500 | 2022-05-26 | Buy |
| TCI Chemicals (India) | M0630 | 4-Mercaptopyridine | 4556-23-4 | 25G | ₹17200 | 2022-05-26 | Buy |
4-Mercaptopyridine Chemical Properties,Uses,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.
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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | China | 29798 | 60 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29898 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49391 | 58 | Inquiry |
| SIMAGCHEM CORP | +86-13806087780 | China | 17367 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| CHEMSWORTH | 30 |
| A.J Chemicals | 58 |
| CLEARSYNTH LABS LTD. | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| HiMedia Laboratories | 58 |
| Capot Chemical Co.,Ltd. | 60 |
| career henan chemical co | 58 |
| Chongqing Chemdad Co., Ltd | 58 |
| CONIER CHEM AND PHARMA LIMITED | 58 |
| SIMAGCHEM CORP | 58 |
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