Direct Orange 8

  • Benzoic acid, 5-[[4'-[(1-amino-4-sulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
  • Disodium 5-[[4'-[(1-amino-4-sulfonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate
Formula
C29H21N5O6S.2Na
Structure
Uses
Major uses include dye for cellulose fibers, beater dye for paper, stain for wool, silk, and cotton fibers.

Registry Numbers and Inventories.
CAS
2429-79-0
EC (EINECS/ELINCS)
219-387-4
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C29H21N5O6S.2Na
Formula mass
613.56

Hazards and Protection.

Fire.

Health.
Exposure effects
Properties of this material have not yet been prepared. Any recommendations are of a general nature. Many chemicals cause irritation of the eyes, skin, and respiratory tract. In severe cases respiratory tract irritation can progress to ARDS/acute lung injury which may be delayed in onset for up to 24 to 72 hours in some cases Irritation or burns of the esophagus or gastrointestinal tract are also possible if caustic or irritant chemicals are ingested. ALWAYS contact your local poision control authority or medical professional for assistance.

First aid
 

Transport.