5-Bromo-1-methyl-1H-1,2,4-triazole
Also known as: 1-Methyl-5-bromo-1,2,4-triazole, 1H-1,2,4-Triazole, 5-bromo-1-methyl-, 5-Bromo-1-methyl-1,2,4-triazole, 5-Bromo-1-methyl-1H-1,2,4-triazole
5-Bromo-1-methyl-1H-1,2,4-triazole (CAS 16681-72-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H4BrN3 and a molecular weight of 161.988 g/mol. Key properties include a boiling point of 255.9±23.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 108.5±22.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16681-72-4
- Jingsj CID
- J-1508273-2
- Molecular Formula
- C3H4BrN3
- Molecular Weight
- 161.988 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 255.9±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.9±0.1 g/cm3 |
| Flash Point | 108.5±22.6 °C |
| Exact Mass | 160.958847 |
| PSA | 30.71000 |
| LogP | 0.56 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.669 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
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 5-Bromo-1-methyl-1H-1,2,4-triazole?
The CAS number of 5-Bromo-1-methyl-1H-1,2,4-triazole is 16681-72-4.
What are the molecular formula and molecular weight of 5-Bromo-1-methyl-1H-1,2,4-triazole?
5-Bromo-1-methyl-1H-1,2,4-triazole has molecular formula C3H4BrN3 and molecular weight 161.988 g/mol.
Is 5-Bromo-1-methyl-1H-1,2,4-triazole hazardous?
5-Bromo-1-methyl-1H-1,2,4-triazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 5-Bromo-1-methyl-1H-1,2,4-triazole?
For 5-Bromo-1-methyl-1H-1,2,4-triazole, Upstream Products: 1-Methyl-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. "5-Bromo-1-methyl-1H-1,2,4-triazole (CAS 16681-72-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1508273-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.