Agent Name

BTDA

Alternative Name

3,3`,4,4`-Benzophenonetetracarboxylic dianhydride

CAS Number

2421-28-5

Formula

C17-H6-O7

Major Category

Plastics & Rubber

Synonyms

3,3`,4,4`-Benzophenonetetracarboxylic dianhydride; 3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride; 3,3',4,4'-Tetracarboxybenzophenone dianhydride; 4,4'-Carbonylbis(phthalic anhydride); 4,4'-Carbonyldiphthalic anhydride; 4,4'-Diphthalic anhydride ketone; Benzophenonetetracarboxylic acid anhydride; Benzophenonetetracarboxylic acid dianhydride; Benzophenonetetracarboxylic anhydride; Benzophenonetetracarboxylic dianhydride; 1,3-Isobenzofurandione, 5,5'-carbonylbis-; Benzophenone-3,3':4,4'-tetracarboxylic dianhydride; Phthalic anhydride, 4,4'-carbonyldi-; [ChemIDplus]

Category

Acid Anhydrides, Cyclic

Description

Light yellow powder; [Alfa Aesar MSDS]

Sources/Uses

A curing agent for epoxy resins; [ChemFinder]

Comments

A skin sensitizer; [Quick CPC] An irritant that may cause severe eye irritation; [Alfa Aesar MSDS] See "ACID ANHYDRIDES."

Adverse Effects
Skin Sensitizer

Yes

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: