Benzidines

2,2′-Bis(trifluoromethyl)benzidine 98.0+%, TCI America™

CAS: 341-58-2 Molecular Formula: C14H10F6N2 Molecular Weight (g/mol): 320.238 MDL Number: MFCD00190155 InChI Key: NVKGJHAQGWCWDI-UHFFFAOYSA-N Synonym: 1,1'-biphenyl-4,4'-diamine, 2,2'-bis trifluoromethyl, 2,2'-bis trifluoromethyl benzidine, 2,2'-bis trifluoromethyl-1,1'-biphenyl-4,4'-diamine, 2,2'-bis trifluoromethyl-4,4'-biphenyldiamine, 2,2'-bis trifluoromethyl-4,4'-diaminobiphenyl, 2,2'-bis-trifluoromethyl-biphenyl-4,4'-diamine, 4,4'-diamino-2,2'-bis trifluoromethyl biphenyl, 4-4-amino-2-trifluoromethyl phenyl-3-trifluoromethyl aniline, 4-4-azanyl-2-trifluoromethyl phenyl-3-trifluoromethyl aniline, tfmb PubChem CID: 629349 IUPAC Name: 4-[4-amino-2-(trifluoromethyl)phenyl]-3-(trifluoromethyl)aniline SMILES: C1=CC(=C(C=C1N)C(F)(F)F)C2=C(C=C(C=C2)N)C(F)(F)F

3,3′,5,5′-Tetramethylbenzidine 98.0+%, TCI America™

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

m-Tolidine 98.0+%, TCI America™

CAS: 84-67-3 Molecular Formula: C14H16N2 Molecular Weight (g/mol): 212.296 MDL Number: MFCD02269175 InChI Key: QYIMZXITLDTULQ-UHFFFAOYSA-N Synonym: 2,2′C-Dimethylbenzidine, 4,4′C-Diamino-2,2′C-dimethylbiphenyl PubChem CID: 66537 IUPAC Name: 4-(4-amino-2-methylphenyl)-3-methylaniline SMILES: CC1=C(C=CC(=C1)N)C2=C(C=C(C=C2)N)C

2,2′-Benzidinedisulfonic Acid (contains 30% Water at maximum) 70.0+%, TCI America™

CAS: 117-61-3 Molecular Formula: C12H12N2O6S2 Molecular Weight (g/mol): 344.356 MDL Number: MFCD00041885 InChI Key: MBJAPGAZEWPEFB-UHFFFAOYSA-N Synonym: 2,2'-benzidinedisulfonic acid, 2,2'-disulfobenzidine, 4,4'-diamino-1,1'-biphenyl-2,2'-disulfonic acid, 4,4'-diamino-2,2'-biphenyldisulfonic acid, 4,4'-diaminobiphenyl-2,2'-disulfonic acid, 6,6'-bimetanilic acid, benzidine, 2,2'-disulfo, benzidine-2,2'-disulfonic acid, benzidine-2,2'-disulphonic acid, unii-alf643n2eq PubChem CID: 8337 IUPAC Name: 5-amino-2-(4-amino-2-sulfophenyl)benzenesulfonic acid SMILES: C1=CC(=C(C=C1N)S(=O)(=O)O)C2=C(C=C(C=C2)N)S(=O)(=O)O

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine, 98%

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

3,3',5,5'-Tetramethylbenzidine, MP Biomedicals™

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

Chlorazol Black E, ACROS Organics™

CAS: 1937-37-7 Molecular Formula: C34H25N9Na2O7S2 Molecular Weight (g/mol): 781.73 MDL Number: MFCD00066363 InChI Key: OLVNAWLXZDRGPL-UHFFFAOYSA-L PubChem CID: 44135447 IUPAC Name: disodium;4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Congo Red (Certified Biological Stain), Fisher Chemical

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Diphenyl Bisazonaphthionic Acid, Direct Red 28 PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Alfa Aesar™ Chlorazol Black E

CAS: 1937-37-7 Molecular Formula: C34H25N9Na2O7S2 Molecular Weight (g/mol): 781.73 MDL Number: MFCD00066363 InChI Key: OLVNAWLXZDRGPL-UHFFFAOYSA-L Synonym: Azo Black; C.I. 30235 PubChem CID: 44135447 IUPAC Name: disodium;4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Benzidines Mixture (For EPA 605, 625) Non-distribution product as customer accommodation.

CAS: 92-87-5 Molecular Formula: C12H12N2 Molecular Weight (g/mol): 184.242 InChI Key: HFACYLZERDEVSX-UHFFFAOYSA-N PubChem CID: 7111 ChEBI: CHEBI:80495 IUPAC Name: 4-(4-aminophenyl)aniline SMILES: C1=CC(=CC=C1C2=CC=C(C=C2)N)N

Alfa Aesar™ Congo Red, indicator grade

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 MDL Number: MFCD00004028 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: C.I. 22120 PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Benzidine, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Congo Red, MP Biomedicals™

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Benzo Congo Red, Cotton Red PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Congo Red 98.0+%, TCI America™

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 MDL Number: MFCD00004028 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Direct Red 28 PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine soln., Ready-to-Use, high sensitivity

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

4,4′-Diaminooctafluorobiphenyl 97.0+%, TCI America™

CAS: 1038-66-0 Molecular Formula: C12H4F8N2 Molecular Weight (g/mol): 328.165 MDL Number: MFCD00007646 InChI Key: FWOLORXQTIGHFX-UHFFFAOYSA-N Synonym: 1,1'-biphenyl-4,4'-diamine, 2,2',3,3',5,5',6,6'-octafluoro, 2,2',3,3',5,5',6,6'-octafluoro-4,4'-bibenzenamine, 2,2',3,3',5,5',6,6'-octafluorobenzidine, 4,4'-biphenyldiamine, 2,2',3,3',5,5',6,6'-octafluoro, 4,4'-diaminoctafluorobiphenyl, 4,4'-diaminooctafluorobiphenyl, 4,4'-diaminooctafluorodiphenyl, benzidine, 2,2',3,3',5,5',6,6'-octafluoro, benzidine, octafluoro, octafluorobenzidine PubChem CID: 70582 IUPAC Name: 4-(4-amino-2,3,5,6-tetrafluorophenyl)-2,3,5,6-tetrafluoroaniline SMILES: C1(=C(C(=C(C(=C1F)F)N)F)F)C2=C(C(=C(C(=C2F)F)N)F)F

Congo Red Indicator, 0.1% (w/v), pH 3.0 to 5.0 Blue to Red, Certified, LabChem™

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine soln., Ready-to-Use, precipitating, high sensitivity

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine dihydrochloride, 99%

CAS: 64285-73-0 Molecular Formula: C16H22Cl2N2 Molecular Weight (g/mol): 313.266 MDL Number: MFCD00012961 InChI Key: NYNRGZULARUZCC-UHFFFAOYSA-N Synonym: 1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethyl-, dihydrochloride, 1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethyl-, hydrochloride 1:2, 3,3',5,5'-tetramethyl 1,1'-biphenyl-4,4'-diamine dihydrochloride, 3,3',5,5'-tetramethylbenzidine dihydrochloride, 3,3',5,5'-tetramethylbenzidine dihydrochloride hydrate, 4-4-amino-3,5-dimethylphenyl-2,6-dimethylaniline dihydrochloride, tetramethylbenzidine dihydrochloride, tmb dihydrochloride PubChem CID: 174033 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline;dihydrochloride SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C.Cl.Cl

3,3′,5,5′-Tetramethylbenzidine 98.0+%, TCI America™

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine soln., Ready-to-Use, standard sensitivity

CAS: 54827-17-7 Molecular Formula: C16H20N2 Molecular Weight (g/mol): 240.35 MDL Number: MFCD00007748 InChI Key: UAIUNKRWKOVEES-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl benzidine, 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine, 3,3',5,5'-tetramethylbenzidine, 3,5,3',5'-tetramethylbenzidine, bm blue, ccris 4727, tmb, tmb plus, tmb substrate, tmb, insoluble PubChem CID: 41206 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C

2,2′,5,5′-Tetrachlorobenzidine 98.0+%, TCI America™

CAS: 15721-02-5 Molecular Formula: C12H8Cl4N2 Molecular Weight (g/mol): 322.01 MDL Number: MFCD00043918 InChI Key: UXOXUHMFQZEAFR-UHFFFAOYSA-N Synonym: 4,4′-Diamino-2,2′,5,5′-tetrachlorobiphenyl PubChem CID: 27465 ChEBI: CHEBI:82540 IUPAC Name: 4-(4-amino-2,5-dichlorophenyl)-2,5-dichloroaniline SMILES: C1=C(C(=CC(=C1Cl)N)Cl)C2=CC(=C(C=C2Cl)N)Cl

Alfa Aesar™ 3,3',5,5'-Tetramethylbenzidine dihydrochloride hydrate, 99+%

CAS: 207738-08-7 Molecular Formula: C16H26Cl2N2O2 Molecular Weight (g/mol): 349.296 MDL Number: MFCD00150104 InChI Key: CJRXJBONCVPXPJ-UHFFFAOYSA-N Synonym: 3,3',5,5'-tetramethyl-1,1'-biphenyl-4,4'-diamine dihydrochloride dihydrate, 3,3',5,5'-tetramethylbenzidine dihydrochloride dihydrate, 3,3',5,5'-tetramethylbenzidine dihydrochloride hydrate, pubchem9044, tetramethylbenzidine dihydrate dihydrochloride PubChem CID: 19836601 IUPAC Name: 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline;dihydrate;dihydrochloride SMILES: CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C.O.O.Cl.Cl

Chlorazol Black E, TCI America™

CAS: 1937-37-7 Molecular Formula: C34H25N9Na2O7S2 Molecular Weight (g/mol): 781.73 MDL Number: MFCD00066363 InChI Key: OLVNAWLXZDRGPL-UHFFFAOYSA-L Synonym: Direct Black 38 PubChem CID: 44135447 IUPAC Name: disodium;4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate SMILES: C1=CC=C(C=C1)NN=C2C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

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