5-Methyl-1H-benzotriazole
Also known as: 5-Methyl-1H-benzo[d][1,2,3]triazole, Tolyltriazole, 5-Methylbenzotriazole, 5MBT, 6-Methyl-1H-benzotriazole, Azimidotoluene, Retrocure G, Vulkalent TM, UNII-O9DI72TU6U, m-Aziminotoluene, m-Tolylazoimide
5-Methyl-1H-benzotriazole (CAS 136-85-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H7N3 and a molecular weight of 133.151 g/mol. Key properties include a melting point of 80-82 °C(lit.), a boiling point of 360.6±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 181.5±12.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 136-85-6
- Jingsj CID
- J-38038-2
- Molecular Formula
- C7H7N3
- Molecular Weight
- 133.151 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 80-82 °C(lit.) |
|---|---|
| Boiling Point | 360.6±11.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 181.5±12.2 °C |
| Exact Mass | 133.063995 |
| PSA | 41.57000 |
| LogP | 1.80 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.680 |
| Storage Conditions | Refrigerator |
| Additional Property | 6.0 g/L (25 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 5-Methyl-1H-benzotriazole?
The CAS number of 5-Methyl-1H-benzotriazole is 136-85-6.
What are the molecular formula and molecular weight of 5-Methyl-1H-benzotriazole?
5-Methyl-1H-benzotriazole has molecular formula C7H7N3 and molecular weight 133.151 g/mol.
Is 5-Methyl-1H-benzotriazole hazardous?
5-Methyl-1H-benzotriazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 5-Methyl-1H-benzotriazole?
For 5-Methyl-1H-benzotriazole, Upstream Products: 3,4-Diaminotoluene, 3,4-Diaminotoluene dihydrochloride; Downstream Products: Benzotriazole-5-carboxylic acid, 1H-1,2,3-triazole-4,5-dicarboxylic acid, 1H-benzotriazol-4-amine.
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-Methyl-1H-benzotriazole (CAS 136-85-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38038-2 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.