3-methyl-1H-1,2,4-triazole-5-thiol
Also known as: 3-Mercapto-5-methyl-1,2,4-triazole, 5-methyl-1,2,4-triazole-3-thione, 5-methyl-1,2-dihydro-3H-1,2,4-triazole-3-thione, 3-methyl-1H-1,2,4-triazole-5-thione, 5-methyl-1H-1,2,4-triazole-3-thiol
3-methyl-1H-1,2,4-triazole-5-thiol (CAS 7271-44-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H5N3S and a molecular weight of 115.157 g/mol. Key properties include a melting point of 282-283ºC, a boiling point of 144.2±23.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 41.0±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7271-44-5
- Jingsj CID
- J-924150-3
- Molecular Formula
- C3H5N3S
- Molecular Weight
- 115.157 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 282-283ºC |
|---|---|
| Boiling Point | 144.2±23.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 41.0±22.6 °C |
| Exact Mass | 115.020416 |
| PSA | 76.56000 |
| LogP | -0.94 |
| Vapor Pressure | 5.2±0.3 mmHg at 25°C |
| Refractive Index | 1.752 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-methyl-1H-1,2,4-triazole-5-thiol?
The CAS number of 3-methyl-1H-1,2,4-triazole-5-thiol is 7271-44-5.
What are the molecular formula and molecular weight of 3-methyl-1H-1,2,4-triazole-5-thiol?
3-methyl-1H-1,2,4-triazole-5-thiol has molecular formula C3H5N3S and molecular weight 115.157 g/mol.
What are the upstream and downstream products of 3-methyl-1H-1,2,4-triazole-5-thiol?
For 3-methyl-1H-1,2,4-triazole-5-thiol, Upstream Products: Acetamidothiourea, Thiosemicarbazide, Acetyl chloride; Downstream Products: Tiazotic acid, 3-Methyl-1H-1,2,4-triazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-methyl-1H-1,2,4-triazole-5-thiol (CAS 7271-44-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-924150-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.