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
5
Revision date
2025-03-22
Product name
OREN(II)
Product Synonyms
Acid Orange 7; C.I. 15510; p-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid, sodium salt
CAS No.
633-96-5
Emergency telephone
+(60)-327884561
Icons in SDS
Company Information
company name
Thermo Fisher Scientific Fisher Scientific (M) Sdn Bhd
e-mail address of the competent person responsible for the Safety Data Sheet
Enquiry.my@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
Classification of the substance or mixture Specific target organ toxicity - (repeated exposure) Category 1 (H372) Chronic aquatic toxicity Category 3 (H412)
Signal word
Danger
Hazard statements
H372 - Causes damage to organs through prolonged or repeated exposure H412 - Harmful to aquatic life with long lasting effects
Prevention
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
Response
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
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
2.3 Other hazards
This product does not contain any known or suspected endocrine disruptors
2.1 Classification of the substance or mixture
Specific target organ toxicity - (repeated exposure) Category 1 (H372) Chronic aquatic toxicity Category 3 (H412)
