1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one
Also known as: 9-Methyl-3-methylene-1,2,3,9-tetrahydro-4H-carbazol-4-one, 1,2,3,4-Tetrahydro-9-methyl-3-methylene-9H-carbazol-4-one, 9-Methyl-3-methylidene-1,2,3,9-tetrahydro-4H-carbazol-4-one, Ondansetron EP Impurity D, Ondansetron Related Compound D (USP), Ondansetron impurity D (PhEur), Ondansetron Impurity 4
1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one (CAS 99614-64-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H13NO and a molecular weight of 211.259 g/mol. Key properties include a boiling point of 393.6±34.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 191.8±25.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99614-64-9
- Jingsj CID
- J-1512882-2
- Molecular Formula
- C14H13NO
- Molecular Weight
- 211.259 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 393.6±34.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 191.8±25.7 °C |
| Exact Mass | 211.099716 |
| PSA | 22.00000 |
| LogP | 3.02 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.633 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H317 — May cause an allergic skin reaction
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 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one?
The CAS number of 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one is 99614-64-9.
What are the molecular formula and molecular weight of 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one?
1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one has molecular formula C14H13NO and molecular weight 211.259 g/mol.
Is 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one hazardous?
1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one?
For 1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one, Upstream Products: Formaldehyde, 1,2,3,4-Tetrahydro-9-methylcarbazol-4-one, 1,3,5-Trimethylhexahydro-1,3,5-triazine; Downstream Products: 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. "1,2,3,9-Tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one (CAS 99614-64-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512882-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.