Arsanilic acid
Also known as: 4-Aminophenylarsonic acid, p-Arsanilic acid, 4-Aminobenzenearsonic acid, 4-Arsonoaniline, 4-arsanilic acid, (4-Aminophenyl)arsonic acid, Arsenic acid anilide, NSC 2023, 4-Aminophenylarsonsaeure, Arsonic acid, As-(4-aminophenyl)-
Arsanilic acid (CAS 98-50-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8AsNO3 and a molecular weight of 217.054 g/mol. Key properties include a melting point of ≥300 °C(lit.), a boiling point of 528.5±52.0 °C at 760 mmHg and a flash point of 273.4±30.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H331 — Toxic if inhaled and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 98-50-0
- Jingsj CID
- J-1101183-9
- Molecular Formula
- C6H8AsNO3
- Molecular Weight
- 217.054 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ≥300 °C(lit.) |
|---|---|
| Boiling Point | 528.5±52.0 °C at 760 mmHg |
| Flash Point | 273.4±30.7 °C |
| Exact Mass | 216.972015 |
| PSA | 83.55000 |
| LogP | -1.28 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Additional Property | SLIGHTLY SOLUBLE IN COLD WATER |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2931900039 |
|---|---|
| Summary | 2931900039 (4-aminophenyl)arsonic acid。supervision conditions:x(environment control release notice for poisonous chemicals)。VAT:17.0%。tax rebate rate:0.0%。MFN tarrif:6.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Arsanilic acid?
The CAS number of Arsanilic acid is 98-50-0.
What are the molecular formula and molecular weight of Arsanilic acid?
Arsanilic acid has molecular formula C6H8AsNO3 and molecular weight 217.054 g/mol.
Is Arsanilic acid hazardous?
Arsanilic acid has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H331 — Toxic if inhaled; H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Arsanilic acid?
For Arsanilic acid, Upstream Products: Arsenic acid, Nitarsone; Downstream Products: 2,4,6-trinitroaniline, Melarsen oxide, 2,4-Dibromoaniline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Arsanilic acid (CAS 98-50-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101183-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.