Melarsen oxide
Also known as: (p-Arsenosophenyl)melamine, 3177 R.P., 2-(p-Arsenosoanilino)-4,6-diamino-s-triazine, Friedheim 2065, Melarsenoxyd, Melox, N-(4-arsenosophenyl)-1,3,5-triazine-2,4,6-triamine, NSC 34642, 1,3,5-Triazine-2,4,6-triamine, N2-(4-arsenosophenyl)-
Melarsen oxide (CAS 21840-08-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H10AsN6O and a molecular weight of 293.13700 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21840-08-4
- Jingsj CID
- J-37218-9
- Molecular Formula
- C9H10AsN6O
- Molecular Weight
- 293.13700 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Exact Mass | 293.01300 |
|---|---|
| PSA | 119.81000 |
| LogP | 0.80250 |
Customs & Trade Information
| HS Code | 2933699090 |
|---|---|
| Summary | 2933699090 other compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Melarsen oxide?
The CAS number of Melarsen oxide is 21840-08-4.
What are the molecular formula and molecular weight of Melarsen oxide?
Melarsen oxide has molecular formula C9H10AsN6O and molecular weight 293.13700 g/mol.
What are the upstream and downstream products of Melarsen oxide?
For Melarsen oxide, Upstream Products: Arsanilic 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. "Melarsen oxide (CAS 21840-08-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37218-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.