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Benzidine, its salts and benzidine derivatives

Regulatory process names 1  Other identifiers 1 
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EC / List no.: -

CAS no.: -

Mol. Formula:

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

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Substance names and other identifiers

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Regulatory process names
Benzidine, its salts and benzidine derivatives
Other, PIC Annex I
Other identifiers
2921 59 90
Other, PIC Annex I
Combined Nomenclature Code
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Group members

This entry / group of substance has the following member substances:

Results list is empty
Name EC / List no. CAS no. Association
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis(4-methylphenyl)- - 10311-61-2 Expert judgement (ECHA)
2H- Tetrazolium, 2,2'-(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[5-[(3,4- dimethoxyphenyl)methyl]-3-phenyl-, chloride (1:2) - 106629-90-7 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-1-naphthalenyl-N4,N4'-diphenyl- - 123847-85-8 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis([1,1'-biphenyl]-4-yl)-N4,N4'-diphenyl- - 134008-76-7 Expert judgement (ECHA)
Benzaldehyde, 4,4'-[[1,1'-biphenyl]-4,4'-diylbis(phenylimino)]bis- - 137911-28-5 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4',N4'-tetra-2-naphthalenyl- - 141752-82-1 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-1-naphthalenyl- - 152670-41-2 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4',N4'-tetrakis([1,1'-biphenyl]-4-yl)- - 164724-35-0 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4'-triphenyl- - 167218-30-6 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis[4'-(diphenylamino)[1,1'-biphenyl]-4-yl]-N4,N4'-diphenyl- - 167218-46-4 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis(4-methylphenyl)-N4,N4'-diphenyl- - 20441-06-9 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis[4-(diphenylamino)phenyl]-N4,N4'-diphenyl- - 209980-53-0 Expert judgement (ECHA)
9H-Carbazole, 9,9'-(9,9-dimethyl-9H-fluorene-2,7-diyl)bis- - 226958-06-1 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis(9,9-dimethyl-9H-fluoren-2-yl)-N4,N4'-diphenyl- - 361486-60-4 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl- - 374592-88-8 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis[4-(diphenylamino)phenyl]-N4,N4'-di-1-naphthalenyl- - 910058-11-6 Expert judgement (ECHA)
3,3'-Bi-9H-carbazole, 9,9'-diphenyl- 834-551-0 57102-62-2 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4'-[4'-(diphenylamino)[1,1'-biphenyl]-4-yl]-N4,N4-diphenyl- - 167218-39-5 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, 2,2'-dimethyl-N4,N4'-di-1-naphthalenyl-N4,N4'-diphenyl- - 495416-60-9 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4',N4'-tetra-1-naphthalenyl- - 186256-01-9 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-1-naphthalenyl-N4-phenyl- - 352359-43-4 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis(4-aminophenyl)-N4,N4'-diphenyl- - 155557-65-6 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-9-phenanthrenyl-N4,N4'-diphenyl- - 182507-83-1 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-bis(4-methoxyphenyl)- - 59131-00-9 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4'-di-2-naphthalenyl-N4,N4'-diphenyl- - 139255-17-7 Expert judgement (ECHA)
Phenol, 4,4'-[(3,3'-dinitro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis- - 3687-26-1 Expert judgement (ECHA)
Diazene, 1,1'-[[1,1'-biphenyl]-4,4'-diylbis[2-hydrazinyl-1-ylidene(phenylmethylidyne)]]bis[2-phenyl- - 21520-87-6 Expert judgement (ECHA)
Benzidine-2,2'-disulphonic acid 204-200-0 117-61-3 Expert judgement (ECHA)
3,3'-dimethoxybenzidine 204-355-4 119-90-4 Expert judgement (ECHA)
4,4'-bi-o-toluidine 204-358-0 119-93-7 Expert judgement (ECHA)
Benzidine dihydrochloride 208-519-6 531-85-1 Expert judgement (ECHA)
[[1,1'-biphenyl]-4,4'-diyl]diammonium sulphate 208-520-1 531-86-2 Expert judgement (ECHA)
N,N'-diphenylbenzidine 208-521-7 531-91-9 Expert judgement (ECHA)
Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate) 209-358-4 573-58-0 Expert judgement (ECHA)
4,4'-bi-o-toluidine dihydrochloride 210-322-5 612-82-8 Expert judgement (ECHA)
3,3'-dichlorobenzidine dihydrochloride 210-323-0 612-83-9 Expert judgement (ECHA)
Disodium 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo)bis(4-aminonaphthalene-1-sulphonate) 213-594-3 992-59-6 Expert judgement (ECHA)
Octafluoro-4,4'-biphenylenediamine 213-861-4 1038-66-0 Expert judgement (ECHA)
[1,1'-biphenyl]-4,4'-diamine, reaction products with 1-methyl-2,4-dinitrobenzene and sodium sulfide (Na2(Sx))
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53025.
 215-424-3 1326-43-8 Expert judgement (ECHA)
[1,1'-biphenyl]-4,4'-diamine, reaction products with 4-methyl-1,3-benzenediamine and sulfur
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53105.
 215-436-9 1326-63-2 Expert judgement (ECHA)
Acetamide, N-(2-methylphenyl)-, reaction products with [1,1'-biphenyl]-4,4'-diamine and sulfur, leuco derivatives
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53150.
 215-439-5 1326-73-4 Expert judgement (ECHA)
[1,1'-biphenyl]-4,4'-diamine, reaction products with 4-(6-methyl-2-benzothiazolyl)benzenamine and sulfur
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53160.
 215-440-0 1326-75-6 Expert judgement (ECHA)
3,3'-(3,3'-dimethoxy-4,4'-biphenylene)bis(2,5-diphenyl-2H-tetrazolium) chloride 217-488-8 1871-22-3 Expert judgement (ECHA)
Disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate 217-710-3 1937-37-7 Expert judgement (ECHA)
Disodium 8,8'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(7-hydroxynaphthalene-1-sulphonate) 218-959-0 2302-97-8 Expert judgement (ECHA)
Trisodium 5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate 219-384-8 2429-73-4 Expert judgement (ECHA)
Tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 219-385-3 2429-74-5 Expert judgement (ECHA)
Disodium 5-[[4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate 219-391-6 2429-82-5 Expert judgement (ECHA)
Tetrasodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 220-012-1 2602-46-2 Expert judgement (ECHA)
Tetrasodium 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxynaphthalene-1,3-disulphonate] 220-026-8 2610-05-1 Expert judgement (ECHA)
Disodium 5-[[4'-[[1-hydroxy-7-(phenylamino)-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate 222-450-9 3476-90-2 Expert judgement (ECHA)
4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one] 222-530-3 3520-72-7 Expert judgement (ECHA)
Disodium 8-[[4'-[(4-ethoxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate 222-560-7 3530-19-6 Expert judgement (ECHA)
Disodium 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-3-[(4-nitrophenyl)azo]naphthalene-2,7-disulphonate 224-376-2 4335-09-5 Expert judgement (ECHA)
3,3'-dinitro[1,1'-biphenyl]-4,4'-diamine 228-457-3 6271-79-0 Expert judgement (ECHA)
Disodium 8-[[4'-[(4-ethoxyphenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate 228-766-3 6358-29-8 Expert judgement (ECHA)
Disodium 8-((3,3'-dimethyl-4'-(4-(4-methylphenylsulphonyloxy)phenylazo)(1,1'-biphenyl)-4-yl)azo)-7-hydroxynaphthalene-1,3-disulphonate 229-272-0 6459-94-5 Expert judgement (ECHA)
3,3'-dimethyl[1,1'-binaphthalene]-4,4'-diamine 236-069-0 13138-48-2 Expert judgement (ECHA)
N,N,N',N'-tetraphenyl[1,1'-biphenyl]-4,4'-diamine 239-599-0 15546-43-7 Expert judgement (ECHA)
2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diamine 239-815-3 15721-02-5 Expert judgement (ECHA)
3,3'-dimethoxybiphenyl-4,4'-ylenediammonium dichloride 243-737-5 20325-40-0 Expert judgement (ECHA)
Tetrasodium 6,6'-((3,3'-dimethyl-(1,1'-biphenyl-4,4'diyl)bis(azo)bis(4-amino-5-hydroxy-1,3-naphthalenedisulphonate) 206-242-5 314-13-6 Expert judgement (ECHA)
N,N,N',N'-tetramethylbenzidine 206-676-5 366-29-0 Expert judgement (ECHA)
Tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate] 200-786-7 72-57-1 Expert judgement (ECHA)
2,2'-dimethyl[1,1'-biphenyl]-4,4'-diamine 201-551-1 84-67-3 Expert judgement (ECHA)
3,3'-dimethoxy[1,1'-biphenyl]-4,4'-bis(diazonium) dichloride 202-106-4 91-91-8 Expert judgement (ECHA)
3,3'-dichlorobenzidine 202-109-0 91-94-1 Expert judgement (ECHA)
Biphenyl-3,3',4,4'-tetrayltetraamine 202-110-6 91-95-2 Expert judgement (ECHA)
N,N'-(3,3'-dimethylbiphenyl-4,4'-ylene)di(acetoacetamide) 202-111-1 91-96-3 Expert judgement (ECHA)
3,3'-dimethylbiphenyl-4,4'-diyl diisocyanate 202-112-7 91-97-4 Expert judgement (ECHA)
Benzidine 202-199-1 92-87-5 Expert judgement (ECHA)
Benzidine acetate 252-984-8 36341-27-2 Expert judgement (ECHA)
3,3',5,5'-tetramethyl[1,1'-biphenyl]-4,4'-diamine dihydrochloride 264-769-6 64285-73-0 Expert judgement (ECHA)
3,3'-dichlorobenzidine dihydrogen bis(sulphate) 265-293-1 64969-34-2 Expert judgement (ECHA)
3,3'-dichlorobenzidine sulphate 277-822-3 74332-73-3 Expert judgement (ECHA)
2,2'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[N-(4-chlorophenyl)-3-oxobutyramide] 304-380-1 94249-03-3 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, reaction products with 4-(6-methyl-2-benzothiazolyl)benzenamine, 4-(6-methyl[2,6'-bibenzothiazol]-2'-yl)benzenamine and sodium sulfide 290-814-4 90268-15-8 Expert judgement (ECHA)
2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, coupled with 4-amino-5-hydroxy-2-naphthalenesulfonic acid, diazotized 4-aminobenzenesulfonic acid and diazotized [1,1'-biphenyl]-4,4'-diamine 291-628-6 90431-98-4 Expert judgement (ECHA)
4,4'-[[1,1'-biphenyl]-4,4'-diyldiazo]bis[4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic] acid, sodium salt 303-425-2 94199-52-7 Expert judgement (ECHA)
N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-diphenyl)-4,4'-diamine
OP-262; ST 16-1.1; ST 16-1.2; SUBSTANCE S123104
 413-810-8 65181-78-4 Expert judgement (ECHA)
N4,N4'-bis(4-methoxy-2-methylphenyl)-N4,N4'-diphenyl[1,1'-biphenyl]-4,4'-diamine 438-140-3 169685-34-1 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4',N4'-tetrakis(4-methylphenyl)- 616-303-1 76185-65-4 Expert judgement (ECHA)
2- Naphthalenesulfonic acid, 5,5'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[6- amino-4-hydroxy-, sodium salt (1:2) 607-822-4 2586-60-9 Expert judgement (ECHA)
(NE,E)-N-({3,3'-dimethoxy-4'-[(E)-{[(1E)-[2-(4-nitrophenyl)hydrazin-1-ylidene](phenyl)methyl]imino}amino]-[1,1'-biphenyl]-4-yl}imino)-N'-[(4-nitrophenyl)amino]benzenecarboximidamide 621-481-9 16325-01-2 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, 2,2'-bis(trifluoromethyl)- 671-105-2 341-58-2 Expert judgement (ECHA)
(NE,Z)-N-({3,3'-dimethoxy-4'-[(E)-{[(1Z)-(4-nitrophenyl)[2-(4-nitrophenyl)hydrazin-1-ylidene]methyl]imino}amino]-[1,1'-biphenyl]-4-yl}imino)-4-nitro-N'-[(4-nitrophenyl)amino]benzene-1-carboximidamide 677-171-9 19333-63-2 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro-N4,N4'-bis[(4-methoxyphenyl)methylene]- 677-960-8 3540-78-1 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, 3,3'-diethyl-, hydrochloride (1:?) 678-390-2 76787-89-8 Expert judgement (ECHA)
3,3'-dichloro-4,4'-diisocyanato-1,1'-biphenyl 679-749-6 5331-87-3 Expert judgement (ECHA)
[1,1'-Biphenyl]-4-amine, N,N-dimethyl-4'-nitro- 679-787-3 2143-87-5 Expert judgement (ECHA)
[1,1'-Biphenyl]-3,3'-diol, 4,4'-diamino- 679-800-2 2373-98-0 Expert judgement (ECHA)
N4,N4'-bis(4-bromophenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine 683-711-4 344782-48-5 Expert judgement (ECHA)
3,3-Diaminobenzidine tetrahydrochloride 685-525-9 868272-85-9 Expert judgement (ECHA)
3,3′,5,5′-Tetramethylbenzidine dihydrochloride hydrate 688-511-0 207738-08-7 Expert judgement (ECHA)
[1,1'-Biphenyl]-4,4'-diamine, N4,N4,N4',N4'-tetrakis(4-methoxyphenyl)- 802-281-2 122738-21-0 Expert judgement (ECHA)
3,7-Dibenzothiophenediamine, 2,8-dimethyl-, 5,5-dioxide 806-973-5 55011-44-4 Expert judgement (ECHA)
3,3′-Diaminobenzidine tetrahydrochloride hydrate 808-580-4 167684-17-5 Expert judgement (ECHA)
3,3',5,5'-tetramethylbenzidine 259-364-6 54827-17-7 Expert judgement (ECHA)
Benzidine sulphate 244-236-4 21136-70-9 Expert judgement (ECHA)