Catalogue Number: | T-895 |
Compound Name: | Tartrazine Impurity 3 |
Synonyms: | 4-(2-(3-(ethoxycarbonyl)-5-oxo-1-(4-sulfophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl)benzenesulfonic acid and 4-((3-(ethoxycarbonyl)-5-oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazol-4-yl)diazenyl)benzenesulfonic acid |
CAS#: | |
Alternate CAS#: | |
Molecular Formula: | C18H16N4O9S2 |
Molecular Weight: | 496.47 |
Tartrazine Impurity 4
CAS No. 791545-81-8 (hydrazone form); 1042222-65-0 (azo form)
C17H12N4O9S2
M.W. 482.44