CAS 15139-76-1

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

Description:

Disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate, commonly referred to as a dye, is characterized by its complex molecular structure, which includes a pyrazole ring and azo linkage. This compound is typically used in various applications, including as a colorant in textiles and food products due to its vibrant coloration. It is soluble in water, which enhances its utility in aqueous applications. The presence of sulfonate groups contributes to its high solubility and stability in different pH environments. Additionally, the compound exhibits good lightfastness and resistance to fading, making it suitable for long-lasting applications. Its chemical properties allow it to interact with various substrates, which is essential for its function as a dye. Safety data should be consulted, as with any chemical substance, to understand potential hazards and handling requirements. Overall, this compound exemplifies the characteristics typical of synthetic dyes, combining structural complexity with functional versatility.

Formula: C₂₂H₁₆N₄Na₂O₉S₂

InChI: InChI=1/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,19H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2

InChI key: InChIKey=RUGOWLJUGONEMO-UHFFFAOYSA-N

SMILES: N(=NC1C(C(OCC)=O)=NN(C1=O)C2=CC=C(S(=O)(=O)O)C=C2)C=3C4=C(C(S(=O)(=O)O)=CC3)C=CC=C4.[Na]

Synonyms:

• 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[(4-sulfo-1-naphthalenyl)azo]-1-(4-sulfophenyl)-, 3-ethyl ester, disodium salt
• 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[2-(4-sulfo-1-naphthalenyl)diazenyl]-1-(4-sulfophenyl)-, 3-ethyl ester, sodium salt (1:2)
• 2-Pyrazoline-3-carboxylic acid, 5-oxo-4-[(4-sulfo-1-naphthyl)azo]-1-(p-sulfophenyl)-, 3-ethyl ester, disodium salt
• Orange B
• disodium 4-[[3-ethoxycarbonyl-5-oxo-1-(4-sulfonatophenyl)-4H-pyrazol-4-yl]azo]naphthalene-1-sulfonate
• disodium 4-{2-[3-(ethoxycarbonyl)-5-oxo-1-(4-sulfonatophenyl)-1,5-dihydro-4H-pyrazol-4-ylidene]hydrazino}naphthalene-1-sulfonate
• C.I. Acid Orange 137
• Orange 137
• 4,5-Dihydro-5-oxo-4-[[4-(sodiooxysulfonyl)-1-naphthyl]azo]-1-[4-(sodiooxysulfonyl)phenyl]-1H-pyrazole-3-carboxylic acid ethyl
• 4,5-Dihydro-5-oxo-4-[[4-(sodiooxysulfonyl)-1-naphtyl]azo]-1-[4-(sodiooxysulfonyl)phenyl]-1H-pyrazole-3-carboxylic acid ethyl ester
• Sodium (E)-4-[[3-(Ethoxycarbonyl)-5-oxo-1-(4-sulfonatophenyl)-4,5-dihydro-4-pyrazolyl]diazenyl]naphthalene-1-sulfonate
• disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate
• C.I.Acid Orange 137:C.I.19235

Orange B

CAS: 15139-76-1

Formula: C₂₂H₁₆N₄O₉S₂·2Na

Color and Shape: Reddish Brown Solid

Molecular weight: 544.51 2*22.99

Ref: 4Z-O-053001