Note: Ingredients listed on restricted chemical lists
EC/CAS
2421-28-5
Name of the chemical
Benzophenone-3,3',4,4'-tetracarboxylic dianhydride (‘BTDA’)
Concentration
97-100
General Information
Version
5
Revision date
2026-07-22
Product name
3,3",4,4"-Benzophenonetetracarboxylic dianhydride
Product Synonyms
4,4`-Carbonyldiphthalic anhydride; BTDA
CAS No.
2421-28-5
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
Warning
Hazard Codes
Hazard statements (CLP)
H317, H319, H335, H412
Hazard statements
Code
Statements
H317
May cause an allergic skin reaction
H319
Causes serious eye irritation
H335
May cause respiratory irritation
H412
Harmful to aquatic life with long lasting effects
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Powder Solid Amber Odorless Emergency Overview May cause an allergic skin reaction. Causes serious eye irritation. May cause respiratory irritation. Harmful to aquatic life with long lasting effects. Classification of the substance or mixture Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1B Specific target organ toxicity - (single exposure) Category 3 Chronic aquatic toxicity Category 3 Label Elements
Signal word
Warning Hazard Statements H317 - May cause an allergic skin reaction H319 - Causes serious eye irritation H335 - May cause respiratory irritation H412 - Harmful to aquatic life with long lasting effects
Prevention
P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P271 - Use only outdoors or in a well-ventilated area P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P312 - Call a POISON CENTER or doctor if you feel unwell P362 + P364 - Take off contaminated clothing and wash it before reuse
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
Other physicochemical hazards
None identified.
Health hazards
May cause an allergic skin reaction. Causes serious eye irritation. May cause respiratory irritation.
Environmental hazards
Harmful to aquatic life with long lasting effects. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1B Specific target organ toxicity - (single exposure) Category 3 Chronic aquatic toxicity
