Acid Yellow 25 (C.I. 18835)

Superiority:

The IUPAC name of Acid Yellow 25 is 4-[3-methyl-4-[[4-methyl-3-(phenylsulfamoyl)phenyl]diazenyl]-5-oxo-4H-pyrazol-1-yl]benzenesulfonic acid; sodium. With the CAS registry number 6359-85-9, it is also named as Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-4-((4-methyl-3-((phenylamino)sulfonyl)phenyl)azo)-5-oxo-1H-pyrazol-1-yl)-, monosodium salt. The product's categories are Organics; A; Stains and Dyes; Stains & Dyes, A to, and the other registry numbers are 280105-64-8; 4404-40-4; 84842-93-3. Besides, it is soluble in water, slightly soluble in ethanol and acetone. In addition, its molecular formula is C₂₃H₂₁N₅NaO₆S₂ and molecular weight is 550.56251.

The other characteristics of this product can be summarized as: (1)H-Bond Donor: 2; (2)H-Bond Acceptor: 10; (3)Rotatable Bond Count: 7; (4)Tautomer Count: 7; (5)Exact Mass: 550.083094; (6)MonoIsotopic Mass: 550.083094; (7)Topological Polar Surface Area: 175; (8)Heavy Atom Count: 37; (9)Complexity: 1070; (10)EINECS: 228-810-1.

Preparation and Uses of Acid Yellow 25: please dizotize 4-Amino-2-(anilino-sulfonyl-) toluene. And then put the resultant to couple with 3-Methyl-1-p-sulfo-phenyl-5-pyrazolone. You will obtain this chemical after salting out, filtration, drying and crushing. Moreover, this product is used for dyeing of wool fabric, leather and anodized aluminum. It also can be used for printing and dyeing of nylon fabrics. Furthermore, it is used as coating of paper.

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: CC1=C(C=C(C=C1)N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)O)C)S(=O)(=O)NC4=CC=CC=C4.[Na]
(2)InChI: InChI=1S/C23H21N5O6S2.Na/c1-15-8-9-18(14-21(15)35(30,31)27-17-6-4-3-5-7-17)24-25-22-16(2)26-28(23(22)29)19-10-12-20(13-11-19)36(32,33)34;/h3-14,22,27H,1-2H3,(H,32,33,34)
(3)InChIKey: DNNCCBMLDYORJI-UHFFFAOYSA-N