ORANGE B

1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[2-(4-sulfo-1-naphthalenyl)hydrazinylidene]-1-(4-sulfophenyl)-, 3-ethyl ester, sodium salt (1:2)

4-{2-[3-(Éthoxycarbonyl)-5-oxo-1-(4-sulfonatophényl)-1,5-dihydro-4H-pyrazol-4-ylidène]hydrazino}-1-naphtalènesulfonate de disodium

Dinatrium-4-{2-[3-(ethoxycarbonyl)-5-oxo-1-(4-sulfonatophenyl)-1,5-dihydro-4H-pyrazol-4-yliden]hydrazino}-1-naphthalinsulfonat

Disodium 4-{2-[3-(ethoxycarbonyl)-5-oxo-1-(4-sulfonatophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}-1-naphthalenesulfonate

ORANGE B

1-(4-Sulfophenyl)-3-ethylcarboxy-4-(4-sulfonaphthylazo)-5-hydroxypyrazole disodium

1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-, 3-ethyl ester, disodi

1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-, 3-ethyl ester, disodium salt

2-Pyrazoline-3-carboxylic acid, 5-oxo-4-((4-sulfo-1-naphthyl)azo)-1-(p-sulfophenyl)-, 2-ethyl ester, disodium salt

2-Pyrazoline-3-carboxylic acid, 5-oxo-4-((4-sulfo-1-naphthyl)azo)-1-(P-sulfophenyl)-, 3-ethyl ester, disodium salt

3-Ethyl 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylate disodium salt

53060-70-1

Acid Orange 137

C.I. Acid Orange 137

Disodium 1-(4-sulfophenyl)-3-ethylcarboxy-4-(4-sulfonaphthylazo)-5-hydroxypyrazole

Disodium 3-ethyl 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylate

Disodium 3-ethyl 4,5-dihydro-5-oxo-4-((4-sulphonato-1-naphthyl)azo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate

Disodium 3-ethyl 5-oxo-4-((4-sulfo-1-naphthyl)azo)-1-(p-sulfophenyl)-2-pyrazoline-3-carboxylate

Ethyl 5-oxo-4-(4-sulfonaphthylazo)-1-(p-sulfophenyl)-2-pyrazoline-3-carboxylate disodium salt