Note: Ingredients listed on restricted chemical lists
EC/CAS
633-96-5
Name of the chemical
Sodium 4-[(2-hydroxy-1-naphthyl)azo]benzene sulfonate
Concentration
>95
General Information
Version
3
Revision date
2025-12-29
Product name
Orange(II)
Product Synonyms
Acid Orange 7; C.I. 15510; p-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid, sodium salt
CAS No.
633-96-5
1.2.2. Uses advised against
This product does not contain any substance(s) on the Illicit Drug Precursors/Reagents list This product does not contain any substance(s) subject to Prohibition, Authorization or Restriction. This product does not contain any substance(s) listed on the voluntary National Code of Practice for Chemicals of Security Concern
Emergency telephone
+613 9757 4559
Icons in SDS
Company Information
company name
ThermoFisher Scientific Australia Pty Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
ANZinfo@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H372, H412
Hazard statements
Code
Statements
H372
Causes damage to organs through prolonged or repeated exposure
Section 2
SECTION 2: Hazards identification
Classified as hazardous according to criteria of Safe Work Australia. Classification under Safe Work Australia
Physical hazards
No hazards identified
Health hazards
Specific target organ toxicity - (repeated exposure) Category 1
Environmental hazards
Chronic aquatic toxicity Category 3 Label Elements
Signal word
Danger Hazard Statements H372 - Causes damage to organs through prolonged or repeated exposure H412 - Harmful to aquatic life with long lasting effects
Precautionary statements
P260 - Do not breathe dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P312 - Call a POISON CENTER or doctor if you feel unwell P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P501 - Dispose of contents/ container to an approved waste disposal plant
Further information
This product does not contain any known or suspected endocrine disruptors
2.1 Classification of the substance or mixture
Classified as hazardous according to criteria of Safe Work Australia Physical hazards No hazards identified Health hazards Specific target organ toxicity - (repeated exposure) Category 1 Environmental hazards Chronic aquatic toxicity
