2,3,3-Trimethylindolenine
2,3,3-三甲基-3H-吲哚
Also known as: 2,3,3-Trimethyl-3H-indole, 3H-Indole, 2,3,3-trimethyl-, 2,3,3-trimethylindole, 2,3,3-TRIMETHYLINDOLENINE
2,3,3-Trimethylindolenine (CAS 1640-39-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H13N and a molecular weight of 159.228 g/mol. It is also known as 2,3,3-Trimethyl-3H-indole, 3H-Indole, 2,3,3-trimethyl- and 2,3,3-trimethylindole. Key properties include a melting point of 6-8°C, a boiling point of 228-229 ºC (744 mmHg), a density of 0.992 and a flash point of 93.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1640-39-7
- Jingsj CID
- J-1001505-2
- Molecular Formula
- C11H13N
- Chinese Name
- 2,3,3-三甲基-3H-吲哚
- Molecular Weight
- 159.228 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 6-8°C |
|---|---|
| Boiling Point | 228-229 ºC (744 mmHg) |
| Density | 0.992 |
| Flash Point | 93.3±0.0 °C |
| Exact Mass | 159.104797 |
| PSA | 12.36000 |
| LogP | 1.77 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.553 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 2,3,3-Trimethylindolenine?
The CAS number of 2,3,3-Trimethylindolenine is 1640-39-7.
What are the molecular formula and molecular weight of 2,3,3-Trimethylindolenine?
2,3,3-Trimethylindolenine has molecular formula C11H13N and molecular weight 159.228 g/mol.
Is 2,3,3-Trimethylindolenine hazardous?
2,3,3-Trimethylindolenine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2,3,3-Trimethylindolenine?
For 2,3,3-Trimethylindolenine, Upstream Products: 3-Methyl-2-butanone, Phenylhydrazine, Aniline hydrochloride; Downstream Products: 5-Nitro-2,3,3-trimethylindolenine, 1-(2-Hydroxyethyl)-2,3,3-trimethyl-3H-indolium iodide.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3,3-Trimethylindolenine (CAS 1640-39-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001505-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.