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Aromatic Azo- and Benzidine-Based Substances


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Azo Disperse Dyes

Monoazo Disperse Dyes
SubstancesColour Index (C.I.) Information [1]Empirical Data Availability [***]Section 71
Chemical Abstracts Service Registry Number (CAS RN)Domestic Substances List (DSL) NameC.I. Generic Name(s)C.I. Consti-
tution Number(s)
Other CASNo. Asso-
ciated with C.I. name / number
Physical-Chemical PropertiesEcolo-
gical End-
points
Health End-
points
Water Solu-
bility
Log KowMel-
ting / Decom-
posi-
tion point
2537-62-4Acetamide, N-[2-[(2-bromo-6-cyano-4-nitrophenyl)azo]-5-(diethylamino)phenyl]-----------------N
3618-72-2Acetamide, N-[5-[bis[2-(acetyloxy)ethyl]amino]-
2-[(2-bromo-4,6-dinitrophenyl)azo]-4-methoxyphenyl]-
C.I.Disperse Blue 79:1C.I.11344 3618722, 21429436XXXXXY
5261-31-4Propanenitrile, 3-[[2-
(acetyloxy)ethyl][4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]amino]-
C.I.Disperse Orange 30C.I.11119 --XXXXXN
6232-56-0Ethanol, 2-[[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]
methylamino]-
C.I.Disperse Orange 5C.I.11100 --XXX--XN
12239-34-8Acetamide, N-[5-[bis[2-(acetyloxy)ethyl]amino]-
2-[(2-bromo-4,6-dinitrophenyl)azo]-4-ethoxyphenyl]-
C.I.Disperse Blue 79C.I.11345 3956556XXX--XN
15958-27-7Propanenitrile, 3-[[4-[(4-nitrophenyl)azo]phenyl][2-[[(phenylamino)carbonyl]
oxy]ethyl]amino]-
----------------N
16421-40-2Acetamide, N-[5-[[2-
(acetyloxy)ethyl]
(phenylmethyl)amino]-2-[(2-chloro-4,6-dinitrophenyl)azo]-4-methoxyphenyl]-
C.I.Disperse Blue 130--------------N
16421-41-3Acetamide, N-[5-
[[2-(acetyloxy)ethyl]
(phenylmethyl)amino]-2-[(2,4-dinitrophenyl)azo]-4-
methoxyphenyl]-
----------------N
16586-42-8Propanenitrile, 3-[ethyl
[3-methyl-4-[(6-nitro-2-benzothiazolyl)azo]
phenyl]amino]-
C.I.Disperse Violet 52, C.I.Disperse Red 179C.I.112290[1], [2]16195648, 61951642----XXXN
17464-91-4Ethanol, 2,2’-[[4-[(2-bromo-6-chloro-4-nitrophenyl)azo]-3-chlorophenyl]imino]bis-C.I.Disperse Brown 1:1C.I.11152:1----------XN
19745-44-9Propanenitrile, 3-[4-[(5-nitro-2-thiazolyl)azo](2-phenylethyl)amino]---------X------N
23355-64-8Ethanol, 2,2’-[[3-chloro-4-[(2,6-dichloro-4-nitrophenyl)azo]
phenyl]imino]bis-
C.I.Disperse Brown 1C.I.11152 ----------XN
24610-00-2Benzonitrile, 2-[[4-[(2-cyanoethyl)
(2-phenylethyl)amino]
phenyl]azo]-5-nitro-
----------------N
25150-28-1Propanenitrile, 3-[[4-[(6,7-dichloro-2-benzothiazolyl)azo]
phenyl]ethylamino]-
----------------N
25176-89-0Propanenitrile, 3-[[4-
[(5,6-dichloro-2-benzothiazolyl)azo]
phenyl]ethylamino]-
----------XX--N
26021-20-5Acetamide, N-[2-[(2-bromo-4,6-dinitrophenyl)azo]-5-[(2-cyanoethyl)(2-hydroxyethyl)amino]-4-methoxyphenyl]-C.I.Disperse Blue 94C.I.11343 12235960----------Y
26850-12-4Propanamide, N-[5-[bis[2-(acetyloxy)ethyl]amino]-
2-[(2-chloro-4-nitrophenyl)azo]phenyl]-
C.I.Disperse Red 167C.I.11338 61968523----------N
28824-41-1Propanenitrile, 3-[[4-[(4,6-dibromo-2-benzothiazolyl)azo]
phenyl]ethylamino]-
----------------N
29765-00-2Benzamide, N-[5-[bis[2-(acetyloxy)ethyl]amino]-2-[(4-nitrophenyl)azo]phenyl]-C.I.Disperse Red 135-monoazo[2]--------------N
31030-27-0Benzenamine, 4-[(2-chloro-4-nitrophenyl)azo]-N-ethyl-N-(2-phenoxyethyl)-----------------N
33979-43-0Propanenitrile, 3-[[2-(acetyloxy)ethyl][4-[(5,6-dichloro-2-benzothiazolyl)azo]
phenyl]amino]-
----------X----N
41362-82-7Propanenitrile, 3-[[4-
[(5,6-dichloro-2-benzothiazolyl)azo]phenyl]
methylamino]-
----------------N
42357-98-21H-Benz[de]isoquinoline-1,3(2H)-dione, 6-hydroxy-5-[(2-methoxy-4-nitrophenyl)azo]-2-methyl-----------------Y
42358-36-11H-Benz[de]isoquinoline-1,3(2H)-dione, 2-ethyl-6-hydroxy-5-[(2-methoxy-4-nitrophenyl)azo]-----------------Y
42852-92-6Acetamide, N-[2-
[(2-bromo-4,6-dinitrophenyl)azo]-4-methoxy-5-[(phenylmethyl)-2-propenylamino]phenyl]-
----------------N
51249-07-13-Pyridinecarbonitrile, 1-(2-ethylhexyl)-1,2-dihydro-
6-hydroxy-4-methyl-5-[(2-nitrophenyl)azo]-2-oxo-
--------XX----Y
52697-38-8Acetamide, N-[2-[(2-bromo-4,6-dinitrophenyl)azo]-5-(diethylamino)phenyl]-----------XXXN
53950-33-7Acetamide, N-[2-[(2-bromo-4,6-dinitrophenyl)azo]-5-[(2-cyanoethyl)amino]-4-
methoxyphenyl]-
----------------Y
55252-53-4Acetamide, N-[2-[(2-cyano-6-iodo-4-nitrophenyl)azo]-5-(diethylamino)phenyl]-----------------N
55281-26-0Propanenitrile, 3-[[4-
[(2,6-dibromo-4-nitrophenyl)azo]
phenyl]ethylamino]-
C.I.Disperse Orange 61C.I.111355 12270450----X----N
55290-62-5Benzenesulfonamide, 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)---------X--X--Y
55619-18-6Ethanol, 2,2’-[[4-[(2,6-dibromo-4-nitrophenyl)azo]phenyl]
imino]bis-, diacetate (ester)
----------------N
56532-53-7Acetamide, N-[2-[(2,6-dicyano-4-nitrophenyl)azo]-5-(dipropylamino)phenyl]-C.I.Disperse Blue 165C.I.11077 41642517--XXX--N
59709-38-5β-Alanine, N-[4-
[(2-bromo-6-chloro-4-nitrophenyl)azo]phenyl]-N-(3-methoxy-3-oxopropyl)-, methyl ester
------XXXX--N
61799-13-13-Pyridinecarbonitrile,
5-[(2-cyano-4-nitrophenyl)azo]-2-[(2-hydroxyethyl)amino]-
4-methyl-6-[[3-(2-phenoxyethoxy)
propyl]amino]-
----------------N
63133-84-61(2H)-Quinolineethanol,
6-[(2-chloro-4,6-dinitrophenyl)azo]-3,4-dihydro-2,2,4,7-tetramethyl-
----------X----N
63134-15-6Acetamide, N-[5-
(dipropylamino)-2-[[5-(ethylthio)-1,3,4-thiadiazol-2-yl]
azo]phenyl]-
C.I.Disperse Red 338[2]C.I.111430[2]----------XN
63833-78-33-Pyridinecarbonitrile,
5-[(2-cyano-4-nitrophenyl)azo]-6-[(2-hydroxyethyl)amino]-4-methyl-2-[[3-(2-phenoxyethoxy)propyl]amino]-
----------------N
65122-05-6Diazene, [(1,3-dihydro-1,1,3-trimethyl-2H-inden-2-ylidene)methyl](2-methoxyphenyl)-----------------Y
66693-26-3Propanamide, N-[5-[bis[2-(2-cyanoethoxy)ethyl]amino]-2-[(2-chloro-4,6-dinitrophenyl)azo]-4-methoxyphenyl]-C.I.Disperse Blue 125C.I.110176 12223153, 66693274----------Y
67905-67-3Propanenitrile, 3-
[butyl[4-[(6-nitro-2-benzothiazolyl)azo]
phenyl]amino]-
----------------Y
68214-63-13-Pyridinecarbonitrile, 5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-1-(phenylamino)-----------------Y
68214-66-4Carbamic acid, [2-[(2-chloro-4-nitrophenyl)azo]-5-(diethylamino)phenyl]-, 2-ethoxyethyl ester------X--X----N
68516-64-3Propanenitrile, 3-[[2-(acetyloxy)ethyl][4-[(2-chloro-4-nitrophenyl)azo]-3-methylphenyl]amino]-----------------N
68877-63-4Acetamide, N-[2-[(2-bromo-4,6-dinitrophenyl)azo]-5-
[(2-cyanoethyl)-2-
propenylamino]-4-methoxyphenyl]-
------XXXX--N
68992-01-83-Pyridinecarbonitrile, 1-(2-ethylhexyl)-1,2-dihydro-
6-hydroxy-5-[(4-methoxy-2-nitrophenyl)azo]-4-methyl-2-oxo-
----------------Y
69472-19-1Propanenitrile, 3-[butyl[4-[(4-nitrophenyl)azo]phenyl]amino]-------X--X----Y
70660-55-81-Naphthalenamine, 4-[(2-bromo-4,6-dinitrophenyl)azo]-N-(3-methoxypropyl)-----------------N
72828-63-8Benzonitrile, 2-[[4-[[2-(acetyloxy)ethyl]butylamino]-2-methylphenyl]azo]-3-bromo-5-nitro-----------------N
72828-64-91,3-Benzenedicarbonitrile, 2-[[4-[[2-(acetyloxy)ethyl]
butylamino]-2-methylphenyl]azo]-5-nitro-
C.I.Disperse Blue 287[2]C.I.112025[2]--XXXX--N
72927-94-7Benzenamine, 4-[(2,6-dichloro-4-nitrophenyl)azo]-N-(4-nitrophenyl)-----------------N
72968-82-2Methanesulfonamide, N-[2-[(2,6-dicyano-4-methylphenyl)azo]-5-(dipropylamino)phenyl]-------------X--N
73003-64-22,4,10-Trioxa-7-azaundecan-11-oic acid, 7-[4-[(2,6-dichloro-4-nitrophenyl)azo]-3-methylphenyl]-3-oxo-, methyl ester----------------N
73398-96-63-Pyridinecarbonitrile, 5-[(9,10-dihydro-9,10-dioxo-1-anthracenyl)azo]-2,6-bis[(2-methoxyethyl)amino]-4-methyl-C.I.Disperse Brown 21Confidential94945218----------N
79542-46-4Acetamide, N-[4-chloro-2-[2-(2-chloro-4-nitrophenyl)azo]-5-[(2-hydroxy-3-phenoxypropyl)amino]phenyl]-C.I.DISPERSE RED 349[2]--------------N
83249-47-2Acetamide, N-[2-[(2-bromo-6-cyano-4-nitrophenyl)azo]-5-(dipropylamino)phenyl]-----------------N
83249-49-4Benzonitrile, 3-bromo-2-[[4-(diethylamino)-2-
methylphenyl]azo]-5-methyl-
----------------N
83249-53-0Methanesulfonamide, N-[2-[(2-bromo-6-cyano-4-
methylphenyl)azo]-5-(diethylamino)phenyl]-
----------------N
83249-54-1Methanesulfonamide, N-[2-[(2-bromo-6-cyano-4-
methylphenyl)azo]-5-(dipropylamino)phenyl]-
----------------N
90729-40-13-Pyridinecarbonitrile, 1-butyl-5-[[4-(4-chlorobenzoyl)-2-
nitrophenyl]azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-
----------------N
106276-78-2Benzoic acid, 2,3,4,5-tetrachloro-6-cyano-, methyl ester, reaction products with 4-[(4-aminophenyl)azo]-3-methylbenzenamine and sodium methoxide------X--X----N
127126-02-7Propanenitrile, 3-[[2-(acetyloxy)ethyl][4-[(6,7-dichloro-2-benzothiazolyl)azo]
phenyl]amino]-
----------X----N
Disazo Disperse Dyes
SubstancesColour Index (C.I.) Information [1]Empirical Data Availability [***]Section 71
Chemical Abstracts Service Registry Number (CAS RN)Domestic Substances List (DSL) NameC.I. Generic Name(s)C.I. Consti-
tution Number(s)
Other CASNo. Asso-
ciated with C.I. name / number
Physical-Chemical PropertiesEcolo-
gical End-
points
Health End-
points
Water Solu-
bility
Log KowMel-
ting / Decom-
posi-
tion point
 
6250-23-3Phenol, 4-[[4-(phenylazo)
phenyl]azo]-
C.I.Disperse Yellow 23C.I.26070 --XXXXXN
6253-10-7Phenol, 4-[[4-(phenylazo)-1-naphthalenyl]azo]-C.I.Disperse Orange 13C.I.26080 --X--X--XN
6300-37-4Phenol, 2-methyl-4-[[4-(phenylazo)phenyl]azo]-C.I.Disperse Yellow 7C.I.26090 --X--XXXN
6465-02-7Carbamic acid, [4-[[4-[(4-hydroxyphenyl)azo]-2-methylphenyl]azo]phenyl]-, methyl ester----------------N
6657-00-7Phenol, 4-[[2-methoxy-5-methyl-4-(phenylazo)phenyl]azo]-----------------Y
19800-42-1Phenol, 4-[[2-methoxy-4-[(4-nitrophenyl)azo]phenyl]azo]-C.I.Disperse Orange 29C.I.26077 --XXXX--N
21811-64-3Phenol, 4,4’-[1,4-phenylenebis(azo)]bis-C.I.Disperse Yellow 68C.I.21005 --X--------N
27184-69-6Phenol, 4,4’-[1,4-phenylenebis(azo)]bis[3-methyl-----------------Y
58104-55-52-Naphthalenesulfonamide, 6-hydroxy-N-(2-hydroxyethyl)-N-methyl-5-[[4-(phenylazo)
phenyl]azo]-
----------------Y
70210-08-12-Naphthalenesulfonamide, N-[2-(acetyloxy)ethyl]-6-hydroxy-N-methyl-5-[[4-(phenylazo)
phenyl]azo]-
C.I.Disperse Red 151C.I.26130 61968476----------N
93805-00-6Phenol, 4-[[2-methoxy-4-[(2-methoxyphenyl)azo]-5-methylphenyl]azo]-----------------N

Notes and Legend

[1] C.I. Database unless otherwise noted
[2] National Chemical Inventories
[***] Entries indicate that one or more data points were found during a search of literature available in the public domain. The data has not been evaluated for relevence and are presented here to show the scope of the data available. The data availability information is current as of May 2011. List of references for health endpoints for each subgroup is available upon request.
-- = No studies were identified in the public domain.
X = One or more studies were identified in the public domain that will be evaluated for relevance to class assessment
.

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