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ORANGE B 15139-76-1
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CAS NO : EC NO : 239-201-5 MF : C22H16N4Na2O9S2 MW : 590.4934 Synonyms : C.I. Acid Orange 137;Orange B;disodium 4-{2-[3-(ethoxycarbonyl)-5-oxo-1-(4-sulfonatophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}naphthalene-1-sulfonate;disodium 4-[[3-ethoxycarbonyl-5-oxo-1-(4-sulfonatophenyl)-4H-pyrazol-4-yl]azo]naphthalene-1-sulfonate; Molecular Structure :
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