Azo violet

Agent Name
Azo violet
CAS Number
74-39-5
Formula
C12-H9-N3-O4
Major Category
Dyes
Azo violet formula graphical representation
Synonyms
1,3-Benzenediol, 4-((4-nitrophenyl)azo)-; 2,4-Dihydroxy-4'-nitroazobenzene; 4-((4-Nitrophenyl)azo)-1,3-benzenediol; 4-(4-Nitrophenyl)azoresorcinol; 4-(p-Nitrophenylazo)resorcinol; Magneson; Magneson I; Magnezon I; p-Diazoviolet; p-Diazviolet; p-Nitrobenzeneazoresorcinol; p-Nitrophenylazoresorcinol; [ChemIDplus]
Category
Azo Dyes
Description
A solid insoluble in water; [Sax]
Sources/Uses
Used as a pH indicator for titration of nonaqueous solvents; [Ullmann]
Comments
May cause allergic contact dermatitis; May be toxic by ingestion; [MSDSonline] See "Disperse Red 1" (2872-52-8).
Biomedical References
Search PubMed

Exposure Assessment

Explanatory Notes
mp = 185 deg C; [Sax]
NFPA
must be preheated

Adverse Effects

Skin Sensitizer
Yes

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent: