1,2,3,4-Tetrahydro-9-methylcarbazol-4-one
Also known as: 1,2,3,4-Tetrahydro-9-methyl-4-oxocarbazole, 9-Methyl-1,2,3,4-tetrahydro-4-oxocarbazole, 9-Methyl-1,2,3,9-tetrahydro-4H-carbazol-4-one, 1,2,3,9-Tetrahydro-9-methyl-4H-carbazol-4-one, N-Methyl-4-oxo-1,2,3,4-tetrahydrocarbazole, Ondansetron EP Impurity C, Ondansetron Related Compound C, 9-Methyl-2,3,4,9-tetrahydro-1H-carbazol-4-one, N-Methylcarbazolone
1,2,3,4-Tetrahydro-9-methylcarbazol-4-one (CAS 27387-31-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H13NO and a molecular weight of 199.248 g/mol. Key properties include a melting point of 201 °C, a boiling point of 383.5±11.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 185.7±19.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 27387-31-1
- Jingsj CID
- J-1522663-8
- Molecular Formula
- C13H13NO
- Molecular Weight
- 199.248 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 201 °C |
|---|---|
| Boiling Point | 383.5±11.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 185.7±19.3 °C |
| Exact Mass | 199.099716 |
| PSA | 22.00000 |
| LogP | 2.51 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.647 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H412 — Harmful to aquatic life with long lasting effects
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 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one?
The CAS number of 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one is 27387-31-1.
What are the molecular formula and molecular weight of 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one?
1,2,3,4-Tetrahydro-9-methylcarbazol-4-one has molecular formula C13H13NO and molecular weight 199.248 g/mol.
Is 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one hazardous?
1,2,3,4-Tetrahydro-9-methylcarbazol-4-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H412 — Harmful to aquatic life with long lasting effects.
What are the upstream and downstream products of 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one?
For 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one, Upstream Products: 1,2,3,9-Tetrahydro-4H-carbazol-4-one, iodomethane, Dimethyl sulfate; Downstream Products: Ondansetron hydrochloride, 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one, Ondansetron.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2,3,4-Tetrahydro-9-methylcarbazol-4-one (CAS 27387-31-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522663-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.