Note: Ingredients listed on restricted chemical lists
EC/CAS
637-03-6
Name of the chemical
Phenylarsine oxide
Concentration
100%
General Information
Version
6
Revision date
2026-07-27
Product name
Phenylarsine oxide
Product Synonyms
Oxophenylarsine
CAS No.
637-03-6
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H301, H410
Hazard statements
Code
Statements
H301
Toxic if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Solid White Odorless Emergency Overview Toxic if swallowed. Very toxic to aquatic life with long lasting effects. Classification of the substance or mixture Acute Oral Toxicity Category 3 Acute aquatic toxicity Category 1 Chronic aquatic toxicity Category 1 Label Elements
Signal word
Danger Hazard Statements H301 - Toxic if swallowed H410 - Very toxic to aquatic life with long lasting effects
Prevention
P271 - Use only outdoors or in a well-ventilated area P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P270 - Do not eat, drink or smoke when using this product
Response
P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor P311 - Call a POISON CENTER or doctor P330 - Rinse mouth
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
None identified.
Health hazards
Toxic if swallowed.
Environmental hazards
Very toxic to aquatic life with long lasting effects. Is not likely mobile in the environment due its low water solubility. Spillage unlikely to penetrate soil. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Acute Oral Toxicity Category 3 Acute aquatic toxicity Category 1 Chronic aquatic toxicity