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71042-69-8 2-[[1,5-dihydro-3-methyl-5-oxo-1-(4-sulphophenyl)-4h-pyrazol-4-ylidene]ethylidene]-3-ethy

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Product Name 2-[[1,5-dihydro-3-methyl-5-oxo-1-(4-sulphophenyl)-4H-pyrazol-4-ylidene]ethylidene]-3-ethyl-2,3-dihydrobenzoxazole-5-sulphonic acid
CAS No. 71042-69-8
Synonyms 5-Benzoxazolesulfonic acid, 2-(2-(1,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene)ethylidene)-3-ethyl-2,3-dihydro-; 4-(2-(3-Ethyl-5-sulfo-2(3H)-benzoxazolylidene)ethylidene)-3-methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one; 2-((1,5-Dihydro-3-methyl-5-oxo-1-(4-sulphophenyl)-4H-pyrazol-4-ylidene)ethylidene)-3-ethyl-2,3-dihydrobenzoxazole-5-sulphonic acid; 5-Benzoxazolesulfonic acid, 2-((1,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene)ethylidene)-3-ethyl-2,3-dihydro-; (2Z)-3-ethyl-2-{(2E)-2-[3-methyl-5-oxo-1-(4-sulfophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene]ethylidene}-2,3-dihydro-1,3-benzoxazole-5-sulfonic acid
InChI InChI=1/C21H19N3O8S2/c1-3-23-18-12-16(34(29,30)31)8-10-19(18)32-20(23)11-9-17-13(2)22-24(21(17)25)14-4-6-15(7-5-14)33(26,27)28/h4-12H,3H2,1-2H3,(H,26,27,28)(H,29,30,31)/b17-9+,20-11-
Molecular Formula C21H19N3O8S2
Molecular Weight 505.5209
Density 1.58g/cm3
Refractive index 1.697