1H-Indole-2-carboxaldehyde, 3-methyl-
Also known as: 3-Methyl-1H-indole-2-carbaldehyde, 3-Methylindole-2-carboxaldehyde, 3-Methylindole-2-carbaldehyde, 2-Formyl-3-methylindole, NSC125870, TIMTEC-BB SBB010412
1H-Indole-2-carboxaldehyde, 3-methyl- (CAS 5257-24-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO and a molecular weight of 159.18500 g/mol. Key properties include a melting point of 140-142°C, a boiling point of 344.2ºC at 760mmHg, a density of 1.226g/cm3 and a flash point of 169.9ºC. 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.
- 5257-24-9
- Jingsj CID
- J-1445246-1
- Molecular Formula
- C10H9NO
- Molecular Weight
- 159.18500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 140-142°C |
|---|---|
| Boiling Point | 344.2ºC at 760mmHg |
| Density | 1.226g/cm3 |
| Flash Point | 169.9ºC |
| Exact Mass | 159.06800 |
| PSA | 32.86000 |
| LogP | 2.28880 |
| Refractive Index | 1.698 |
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 1H-Indole-2-carboxaldehyde, 3-methyl-?
The CAS number of 1H-Indole-2-carboxaldehyde, 3-methyl- is 5257-24-9.
What are the molecular formula and molecular weight of 1H-Indole-2-carboxaldehyde, 3-methyl-?
1H-Indole-2-carboxaldehyde, 3-methyl- has molecular formula C10H9NO and molecular weight 159.18500 g/mol.
Is 1H-Indole-2-carboxaldehyde, 3-methyl- hazardous?
1H-Indole-2-carboxaldehyde, 3-methyl- has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H412 — Harmful to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Indole-2-carboxaldehyde, 3-methyl- (CAS 5257-24-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1445246-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.