C.I. Direct Blue 6

Chemical Name	C.I. Direct Blue 6
Synonym(s)	2,7-Naphthalenedisulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxy-,tetrasodium salt \| Airedale Blue 2BD \| Aizen Direct Blue 2BH \| Amanil Blue 2BX \| Atlantic Blue 2B \| Atul Direct Blue 2B \| Azocard Blue 2B \| Azomine Blue 2B \| Belamine Blue 2B \| Bencidal Blue 2B \| Benzanil Blue 2B \| Benzo Blue 2B \| Benzo Blue BBA-CF \| Benzo Blue BBN-CF \| Benzo Blue GS \| Blue 2B \| Blue 2B salt \| Brasilamina Blue 2B \| C.I. 22610 \| Calcomine Blue 2B \| Chloramine Blue 2B \| Chlorazol Blue B \| Chlorazol Blue BP \| Chrome Leather Blue 2B \| Cresotine Blue 2B \| Diacotton Blue BB \| Diamine Blue 2B \| Diamine Blue BB \| Diaphtamine Blue BB \| Diazine Blue 2B \| Diazol Blue 2B \| Diphenyl Blue 2B \| Diphenyl Blue KF \| Diphenyl Blue M 2B \| Direct Blue 2B \| Direct Blue A \| Direct Blue BB \| Direct Blue GS \| Direct Blue K \| Direct Blue M 2B \| Direct Sky Blue K \| Enianil Blue 2BN \| Fenamin Blue 2B \| Fixanol Blue 2B \| Hispamin Blue 2B \| Indigo Blue 2B \| Kayaku Direct Blue BB \| Mitsui Direct Blue 2BN \| Naphtamine Blue 2B \| Niagara Blue 2B \| Nippon Blue BB \| Paramine Blue 2B \| Phenamine Blue BB \| Pheno Blue 2B \| Pontamine Blue BB \| Tertrodirect Blue 2B \| Vondacel Blue 2B
CASRN	2602-46-2
De minimis Limit %	0.1
M,P/OU Threshold (lb)	25,000/10,000
Listing Type	Individually listed chemical
Effective Date	01-JAN-87
Chemical Qualifier	No
Metal	No
Chemical of Special Concern	No
Per- or Polyfluoroalkyl Substance	No

Basis of OSHA Carcinogens

IARC	NTP	OSHA-Z
2A	K	–

Structural image
Structural representation of C.I. Direct Blue 6