Agent Name

C.I. Disperse Orange 1

CAS Number

2581-69-3

Formula

C18-H14-N4-O2

Major Category

Dyes

Synonyms

4-((p-Nitrophenyl)azo)diphenylamine; 4-Anilino-4'-nitroazobenzene; Acetate Orange 5R; Acetoquinone Light Orange 4RL; Benzenamine, 4-((4-nitrophenyl)azo)-N-phenyl-; CI 11080; Celliton Discharge Orange 5RL; Celliton Fast Orange 5R; Cilla Fast Orange 5R; Diacelliton Fast Orange R; Diphenylamine, 4-((p-nitrophenyl)azo)-; Disperse Orange 1; Disperse Orange 5R; Dispersol Fast Orange A; Dispersol Orange A; Dispersol Printing Orange A; Miketon Fast Orange 5R; Miketon Polyester Orange 5R; Navilene Orange 5R; Palanil Orange 5R; Reliton Orange 5R; Resolin Orange 5R; Serisol Orange 5R; Setacyl Scarlet 2GN; Setacyl Scarlet P-2G; Supracet Scarlet 2G; Vonteryl Red 4G; [ChemIDplus]

Category

Azo Dyes

Description

Powder; [MSDSonline]

Sources/Uses

Used as dye for acetates, nylon, polyester, wool sheepskins, furs, and thermoplastics; Not commercially produced in the US; [HSDB]

Comments

May cause irritation; May be harmful by ingestion; "Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65." [MSDSonline]

Exposure Assessment
Vapor Pressure

4.69E-9 mm Hg

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Processes

Industrial Processes with risk of exposure: