Name: Acid Yellow 127
SKU: 73384-78-8

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Basic Information

Molecular Structure:
CAS No.:	73384-78-8
Name:	Acid Yellow 127

Formula:	C₂₆H₂₀Cl₂N₉NaO₄S
Molecular Weight:	648.46
Synonyms:	Benzenesulfonicacid,4-[[4-chloro-6-(methylphenylamino)-1,3,5-triazin-2-yl]amino]-2-[[1-(2-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-,monosodium salt (9CI);Acid Brilliant Yellow 3GL;Best AcidMilling Yellow 5GW;C.I. 18888;C.I. Acid Yellow 127;Concorde Acid Yellow 5GW;Everacid Yellow 5GW;Intralan Brilliant Yellow 3GL;Irganol Brilliant Yellow3GL;Kayanol Milling Yellow 5GW;Kenanthrol Yellow 5GL;Lanyl Brilliant Yellow3G;Triacid Fast Brilliant Yellow 5GW;
EINECS:	277-419-2
PSA:	176.91000
LogP:	6.12340

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Specification

The IUPAC name of Acid Yellow 127 is sodium 4-[[4-chloro-6-(N-methylanilino)-1,3,5-triazin-2-yl]amino]-2-[[1-(2-chlorophenyl)-3-methyl-5-oxo-4H-pyrazol-4-yl]diazenyl]benzenesulfonate. With the CAS registry number 73384-78-8, it is also named as enzenesulfonic acid,4-[[4-chloro-6-(methylphenylamino)-1,3,5-triazin-2-yl]amino]-2-[2-[1-(2-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]diazenyl]-,sodium salt (1:1). The product's categories are Dye; Acid Dyes; Neutral Dye. Besides, it is yellow powder, which is soluble in water. In addition, its molecular formula is C₂₆H₂₀Cl₂N₉NaO₄S and molecular weight is 648.45567.

The other characteristics of Acid Yellow 127 can be summarized as: (1)H-Bond Donor: 1; (2)H-Bond Acceptor: 12; (3)Rotatable Bond Count: 8; (4)Tautomer Count: 16; (5)Exact Mass: 647.063371; (6)MonoIsotopic Mass: 647.063371; (7)Topological Polar Surface Area: 177; (8)Heavy Atom Count: 43; (9)Complexity: 1130; (10)EINECS: 277-419-2.

Production and Uses of Acid Yellow 127: this chemical can be prepared by 2,4-Aminobenzenesulfonic acid, Cyanuric chloride, N-Methyl aniline and 1-(O-chlorophenyl)-3-methyl-5-pyrazolone. Moreover, this chemical is mainly used for dyeing wool top, wool fabric, silk and nylon. It is also used for color matching and leather coloring. And it is used as background color for discharge printing.

People can use the following data to convert to the molecule structure.
(1)SMILES: [Na+].Cc5ccccc5Nc1nc(nc(Cl)n1)Nc4cc(N=NC3C(\C)=N/N(c2ccccc2Cl)C3=O)c(cc4)S([O-])(=O)=O
(2)InChI: InChI=1/C26H21Cl2N9O4S.Na/c1-14-7-3-5-9-18(14)30-26-32-24(28)31-25(33-26)29-16-11-12-21(42(39,40)41)19(13-16)34-35-22-15(2)36-37(23(22)38)20-10-6-4-8-17(20)27;/h3-13,22H,1-2H3,(H,39,40,41)(H2,29,30,31,32,33);/q;+1/p-1
(3)InChIKey: WVXPJDZQOMWFCK-REWHXWOFAU