4,6-Dimethoxy-1H-indole-2,3-dione
Also known as: 4,6-Dimethoxyisatin, 4,6-Dimethoxyindole-2,3-dione, 4,6-Dimethoxy-2,3-dioxoindoline, 1H-Indole-2,3-dione, 4,6-dimethoxy, 4,6-Dimethoxyindoline-2,3-dione, 4,6-Dimethoxy-2,3-dihydro-1H-indole-2,3-dione
4,6-Dimethoxy-1H-indole-2,3-dione (CAS 21544-81-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO4 and a molecular weight of 207.183 g/mol. Key properties include a melting point of 300-304°C and a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21544-81-0
- Jingsj CID
- J-1119069-5
- Molecular Formula
- C10H9NO4
- Molecular Weight
- 207.183 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 300-304°C |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Exact Mass | 207.053162 |
| PSA | 64.63000 |
| LogP | 0.61 |
| Refractive Index | 1.567 |
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 4,6-Dimethoxy-1H-indole-2,3-dione?
The CAS number of 4,6-Dimethoxy-1H-indole-2,3-dione is 21544-81-0.
What are the molecular formula and molecular weight of 4,6-Dimethoxy-1H-indole-2,3-dione?
4,6-Dimethoxy-1H-indole-2,3-dione has molecular formula C10H9NO4 and molecular weight 207.183 g/mol.
What are the upstream and downstream products of 4,6-Dimethoxy-1H-indole-2,3-dione?
For 4,6-Dimethoxy-1H-indole-2,3-dione, Upstream Products: Oxalyl chloride, 3,5-Dimethoxyaniline; Downstream Products: 4,6-Dimethoxyindole, Apabetalone, 2-Amino-4,6-dimethoxybenzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,6-Dimethoxy-1H-indole-2,3-dione (CAS 21544-81-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1119069-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.