Sodium methylarsonate
甲基砷酸钠
Also known as: Monosodium methanearsonate, Monosodium acid methane arsonate, Monosodium acid methane arsonate sesquihydrate, Methylarsonic acid monosodium salt, Sodium hydrogen methylarsonate, Sodium hydrogen As-methylarsonate, MSMA, Bueno, Bueno 6, Drexar, Gepiron, Herbanm, Merge, Monate, Monex, Phyban, Ansar 170, Ansar 170L, Ansar 529, Ansar 529HC
Sodium methylarsonate (CAS 2163-80-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CH4AsNaO3 and a molecular weight of 161.95200 g/mol. It is also known as Monosodium methanearsonate, Monosodium acid methane arsonate and Monosodium acid methane arsonate sesquihydrate. Key properties include a melting point of 113-116ºC, a boiling point of 393.3ºC at 760 mmHg, a density of 1.5 and a flash point of 205.8ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2163-80-6
- Jingsj CID
- J-38039-3
- Molecular Formula
- CH4AsNaO3
- Chinese Name
- 甲基砷酸钠
- Molecular Weight
- 161.95200 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 113-116ºC |
|---|---|
| Boiling Point | 393.3ºC at 760 mmHg |
| Density | 1.5 |
| Flash Point | 205.8ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Sodium methylarsonate?
The CAS number of Sodium methylarsonate is 2163-80-6.
What are the molecular formula and molecular weight of Sodium methylarsonate?
Sodium methylarsonate has molecular formula CH4AsNaO3 and molecular weight 161.95200 g/mol.
Is Sodium methylarsonate hazardous?
Sodium methylarsonate has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sodium methylarsonate (CAS 2163-80-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38039-3 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.