C6H6AsNO6
263.04 g/mol
OtherDanger
Roxarsone
CAS121-19-7EC204-453-7
Category
Other
Compound Class
Organometallic
Primary Use
veterinary antimicrobial growth promoter
Roxarsone is an organoarsenic compound historically utilized in veterinary medicine as a feed additive to promote growth and control enteric infections in poultry and swine. It also serves as a laboratory reagent for zirconium and was formerly used in the manufacture of arsphenamines.
veterinary antimicrobial growth promoter for poultry and swinereagent for zirconiumformerly used in the manufacture of arsphenamines
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:EU REACH Restriction List
CAS 121-19-7
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Safety Reference
Danger
H301Toxic if swallowed
H331Toxic if inhaled
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Roxarsone (CAS 121-19-7) is 2931.90.
HS code (international, 6-digit)
2931.90
EU CN code (8-digit)
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(4-hydroxy-3-nitrophenyl)arsonic acid
InChIKey
XMVJITFPVVRMHC-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1[As](=O)(O)O)[N+](=O)[O-])O
Synonyms (47)
- Roxarson [INN-Spanish]
- Roxarsone (USP/INN)
- Roxarsone(usan)
- Roxarsone, BAN, INN, USAN
- Roxarsone, United States Pharmacopeia (USP)
- Roxarsonum [INN-Latin]
- 2-Nitrophenol-4-arsonic acid
- 2-Nitrophenolarsonic acid-(4)
- 3-Nitro
- 3-Nitro-20
- 3-Nitro-50
- 3-Nitro-80
- 3N4hpa
- 3Nitro10
- Nitro acid 100 per cent
- Nitrophenolarsonic acid
- ROXARSONE [MART.]
- Ren-O-sal
- Ristat
- Roxarson
- Roxarsone, VETRANAL(TM)
- Roxarsonum
- component of 3-Nitro-10
- component of 3-Nitro-20
- component of 3-Nitro-50
- component of 3-Nitro-80
- nitrophenoloarsonic acid
- roxarsona
- roxarsone