Name:C.I.Acid Yellow 127,C.I.18888
Molecular Structure: Single azo class
C.I.Acid Yellow 127,C.I.18888,CAS 73384-78-8,803.63,C26H20Cl2N9NaO4S,Weak Acid Yellow 3GL,Acid Yellow 5G,Acid Yellow 5GW,Neutral Brilliant Yellow 3GL,Neutral Yellow 3GL
Molecular Formula:C26H20Cl2N9NaO4S
Molecular Weight: 803.63
CAS Registry Number:73384-78-8
Manufacturing Methods : 2,4-Diaminobenzenesulfonic acid first and 2,4,6-Trichloro-1,3,5-triazine condensation, again with N-methylbenzenamine condensation, and then diazo, and 1-(2-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one coupling.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater |
| Fading | Stain | Fading | Stain | Fading | Stain |
| ISO | 6 | 4 | 5 | 5 | 4-5 | 4-5 | 5 | 5 |