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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Basic

CAS No. 71042-69-8
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
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
Molecular Formula C21H19N3O8S2
Molecular Weight 505.5209

Physical property

Density 1.58g/cm3
Refractive index 1.697