Chromate(1-), 3-4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1-phenyl-1H-pyrazol-4-ylazo-.kappa.N1-2-(hydroxy-.kappa.O)-5-nitrobenzenesulfonato(3-)hydroxy-, sodium, (T-4)-

Name	Acid Orange 74
Synonyms	C.I. 18745 Acid Orange 74 Acid Orange 74 Acid Orange 74 (18745) acid orange 74 (C.I. 18745) 3-[2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazino]-5-nitro-2-oxidobenzenesulfonate sodium,chromium(3+),3-[(3-methyl-5-oxido-1-phenylpyrazol-4-yl)diazenyl]-5-nitro-2-oxidobenzenesulfonate,hydroxide Chromate, [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulfonato]hydroxy-, sodium sodium [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulphonato(3-)]hydroxychromate(1-) Chromate(1-),[3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulfonato(3-)]hydroxy-,sodium Chromate(1-), 3-4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1-phenyl-1H-pyrazol-4-ylazo-.kappa.N1-2-(hydroxy-.kappa.O)-5-nitrobenzenesulfonato(3-)hydroxy-, sodium, (T-4)-
CAS	10127-27-2
EINECS	233-357-8
InChI	InChI=1/C16H13N5O7S/c1-9-14(16(23)20(19-9)10-5-3-2-4-6-10)18-17-12-7-11(21(24)25)8-13(15(12)22)29(26,27)28/h2-8,17,22H,1H3,(H,26,27,28)/p-2

Safety Description

24/25 - Avoid contact with skin and eyes.

LogP	-1.56 at 23℃ and pH8.9
EPA chemical information	Information provided by: ofmpub.epa.gov (external link)
Production method	1.2-? Amino -4-nitrophenol -6-sulfonic acid diazotization, coupled with 1-phenyl -3-methyl -5-pyrazolone, the product is heated with chromium formate in aqueous solution, maintained at 130 ℃ for 3h, and converted into chromium complex.

Last Update：2024-04-09 19:05:09

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Chromate(1-), 3-4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1-phenyl-1H-pyrazol-4-ylazo-.kappa.N1-2-(hydroxy-.kappa.O)-5-nitrobenzenesulfonato(3-)hydroxy-, sodium, (T-4)- Request for Quotation