p,p'-Oxybis(benzenesulfonyl hydrazide)
Agent Name
p,p'-Oxybis(benzenesulfonyl hydrazide)
Alternative Name
OBSH
CAS Number
80-51-3
Formula
C12-H14-N4-O5-S2
Major Category
Plastics & Rubber
Synonyms
OBSH; 4,4'-Oxybis(benzenesulfonhydrazide); 4,4'-Oxybis(benzenesulfonic acid hydrazide); 4,4'-Oxybis(benzenesulfonic acid) dihydrazide; 4,4'-Oxybis(benzenesulfonyl hydrazide); 4,4'-Oxydi(benzenesulfonic acid hydrazide); 4,4'-Oxydi(benzenesulfonyl dihydrazide); 4,4'-Oxydibenzenesulfonic acid dihydrazide; Benzenesulfonic acid, 4,4'-oxybis-, dihydrazide; Benzenesulfonic acid, 4,4'-oxydi-, dihydrazide; Cellmic S; Celmike S; Celogen; Celogen OT; Cenitron OB; Diphenyl ether 4,4'-disulfohydrazide; Diphenyloxide-4,4'-disulfohydrazide; Genitron ob; OBSH; Oxybis(benzenesulfonylhydrazide); Oxybisbenzenesulfonic acid dihydrazide; Serogen; Zhenitron OV; p,p'-Oxybis(benzenesulfohydrazide); p,p'-Oxybis(benzenesulfonylhydrazine); p,p'-Oxybisbenzene disulfonylhydrazide; [ChemIDplus]
Category
Curing Agents (Aromatic)
Description
White odorless solid; [HSDB] Fine, white powder; [ACGIH]
Sources/Uses
Used as a blowing agent for sponge rubber and expanded plastics; [HSDB] Used as an additive to polymers to make sponge rubber cosmetic puffs, electrostatographic toners, buoyant seats, insulation and packing materials, rubber products (insoles, gaskets, and stoppers), adhesives, sealants, and leather substitutes; Used as a blowing agent--releases nitrogen when heated; [ACGIH]
Comments
A skin, eye, and mucous membrane irritant; Moderately toxic by inhalation, ingestion, and skin absorption; [CAMEO] "Health effects of exposure to the substance have not been investigated adequately." [ICSC] An irritant; [MSDSonline] Limited toxicology data available; Oral LD50 (rats) = 2.3 g/kg; Dermal LD50 (rabbits) >200 mg/kg; By analogy to the TLV for hydrazine, the recommended TLV for OBSH is sufficiently low to protect against ocular irritation and suspected genotoxicity and carcinogenicity; TLV Basis: Teratogenic effect; [ACGIH]
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
0.1 mg/m3, inhalable fraction
Adverse Effects
Reproductive Toxin
Yes
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: