| Name | Acid Yellow 116 |
| Synonyms | Yellow GRL Lanyl Yellow G Acid Yellow 116 NEUTER YELLOW GRL Ostalan Yellow GRL C.I.Acid Yellow 116 Triacid Yellow GRL. |
| CAS | 12239-18-8 |
| Molecular Formula | C217H15IN4O5S |
| Molar Mass | 2916.49 |
| Physical and Chemical Properties | Yellow-brown uniform powder. The aqueous solution is in a colloidal state. When the temperature is lowered, in the more concentrated dye solution, the dye particles exhibit a flash of light. |
| Use | The neutral deep yellow grl is mainly used for wool, silk, tussah silk, nylon, PVA and cotton, dyeing of wool and other blended fabrics, and direct printing of wool, silk and nylon fabrics. Also used in the dyeing of leather. It is used for dyeing wool, silk, tussah silk, nylon, PVA and PVA/cotton blended fabric |
| production method | with 2-aminophenol -4-sulfonamide and O-chloroacetanilide as raw materials, the former is first diazotized, coupled with the latter, then complexed with cobalt chloride, filtered and dried to obtain a finished product.. |