CAS: 1934-22-1 - disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate

Formula: C₁₆H₁₀N₄Na₂O₆S

InChI: InChI=1S/C16H12N4O6S.2Na/c21-15-13(18-17-10-4-2-1-3-5-10)14(16(22)23)19-20(15)11-6-8-12(9-7-11)27(24,25)26;;/h1-9,13H,(H,22,23)(H,24,25,26);;

InChI key: InChIKey=KJYXRRLCQMJGGQ-UHFFFAOYSA-N

SMILES: [Na].O=C(O)C1=NN(C(=O)C1N=NC=2C=CC=CC2)C3=CC=C(C=C3)S(=O)(=O)O

Synonyms:

• 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-(2-phenyldiazenyl)-1-(4-sulfophenyl)-, sodium salt (1:2)
• 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulfophenyl)-, disodium salt
• 2-Pyrazoline-3-carboxylic acid, 5-oxo-4-(phenylazo)-1-(p-sulfophenyl)-, disodium salt
• Acid Leather Yellow KS
• Acid Leather Yellow S
• Airedale Yellow S
• Erio Yellow S
• Fast Light Yellow S
• Flavazine S
• Hispacid Fast Yellow FS
• Plastoresin Yellow S
• Pyrazine Yellow S
• Pyrazolone Yellow S
• Tartar Yellow KS
• Tartrazine K
• Triacid Flavazine S
• Unitertracid Yellow FS
• Vicoacid Yellow 27
• Vondacid Yellow S
• Wool Yellow KS
• Xylene Yellow S
• disodium 5-oxo-4-[(E)-phenyldiazenyl]-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate

Tartrazine Impurity 5

CAS: 1934-22-1

• Formula: C₁₆H₁₀N₄O₆S· 2Na
• Molecular weight: 386.34 2*22.99