2,5-Dimercapto-1,3,4-thiadiazole
Also known as: Bismuththiol I, Bismuthiol I, 1,3,4-Thiadiazole-2,5-dithiol, 1,3,4-Thiadiazolidine-2,5-dithione, DMTD, Bismuthon I, Bismutiol I
2,5-Dimercapto-1,3,4-thiadiazole (CAS 1072-71-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H2N2S3 and a molecular weight of 150.246 g/mol. Key properties include a melting point of 162 °C (dec.)(lit.), a boiling point of 259.6±23.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 110.8±22.6 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1072-71-5
- Jingsj CID
- J-1992835-9
- Molecular Formula
- C2H2N2S3
- Molecular Weight
- 150.246 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 162 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 259.6±23.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 110.8±22.6 °C |
| Exact Mass | 149.938004 |
| PSA | 131.62000 |
| LogP | 2.17 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.757 |
| Additional Property | 20 g/L (20 ºC) |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 2,5-Dimercapto-1,3,4-thiadiazole?
The CAS number of 2,5-Dimercapto-1,3,4-thiadiazole is 1072-71-5.
What are the molecular formula and molecular weight of 2,5-Dimercapto-1,3,4-thiadiazole?
2,5-Dimercapto-1,3,4-thiadiazole has molecular formula C2H2N2S3 and molecular weight 150.246 g/mol.
Is 2,5-Dimercapto-1,3,4-thiadiazole hazardous?
2,5-Dimercapto-1,3,4-thiadiazole has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2,5-Dimercapto-1,3,4-thiadiazole?
For 2,5-Dimercapto-1,3,4-thiadiazole, Upstream Products: Carbon disulphide, Formylhydrazine, Thiosemicarbazide; Downstream Products: (5-mercapto-1,3,4-thiadiazole-2-ylthio)acetic acid, 5-(Propylthio)-1,3,4-thiadiazole-2-thiol, 5,5'-Dithiobis(1,3,4-thiadiazole-2(3H)-thione).
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dimercapto-1,3,4-thiadiazole (CAS 1072-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992835-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.