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Acid dyes from our factory are well used in the industry of Yellow Acid 232Textile, Plastic, Food, ink and Cosmetics, for customers from Ahmedabad, India. Our Company always devote ourselves to provding excellent quality products and professional service to help our clients to high performance, high effiency and less cost, so as to make our clients increase their market competition advantage.

Acid Yellow 232 Specification :

IUPAC Name: 3-(5-Chloro-1,3-benzoxazol-2-yl)-7-(diethylamino)chromen-2-one
Molecular Formula: C20H17ClN2O3
Molecular Weight: 368.81 g/mol
Canonical SMILES: O=c1c(c2nc3cc(Cl)ccc3o2)cc2ccc(N(CC)CC)cc2o1
InChI: InChI=1/C20H17ClN2O3/c1-3-23(4-2)14-7-5-12-9-15(20(24)26-18(12)11-14)19-22-16-10-13(21)6-8-17(16)25-19/h5-11H,3-4H2,1-2H3
EINECS: 252-722-2
XLogP3-AA: 4.9
H-Bond Donor: 0
H-Bond Acceptor: 5
Index of Refraction: 1.663
Molar Refractivity: 100.91 cm3
Molar Volume: 272.3 cm3
Polarizability: 40×10-24 cm3
Surface Tension: 58.5 dyne/cm
Density: 1.354 g/cm3
Flash Point: 301.8 °C

Properties and Applications:

black. Mainly used for the polyamide fiber dyeing and printing

Standard(Polyamide) Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 3-4 4 4-5 4 4-5 4-5


Name: Acid Yellow 232
CAS: 134687-50-6
C.I. No.:
Synonyms 3-(5-Chlorobenzoxazol-2-yl)-7-(diethylamino)-2-benzopyrone ; 3-(5-Chlorobenzoxazol-2-yl)-7-diethylaminocoumarin;C.I. Disperse Yellow 232;C.I. Solvent Yellow 160:1;2H-1-Benzopyran-2-one, 3-(5-chloro-2-benzoxazolyl)-7-(diethylamino)-;Macrolex Fl Yellow 10GN;Macrolex fluorescent yellow;
Molecular Formula C38H32N8Na2O8S2
Molecular Weight 838.82
InChI InChI=1/C20H17ClN2O3/c1-3-23(4-2)14-7-5-12-9-15(20(24)26-18(12)11-14)19-22-16-10-13(21)6-8-17(16)25-19/h5-11H,3-4H2,1-2H3
CAS Registry Number
EINECS 252-722-2
Molecular Structure Acid Black 232

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