| Name | Fast Scarlet Base LG |
| Synonyms | C.I.37145 Azoic DC 31 Fast Scarlet Base LG Diazo Fast Scarlet LG Sugai Fast Scarlet LG Base. C.I.Azoic Diazo Component 31 5-(Benzylsulfonyl)-2-methoxybenzenediazonium |
| Molecular Formula | C14H15NO3S |
| Physical and Chemical Properties | Chemical properties white powder. |
| Use | Uses the red base LG can be used for cotton, viscose fiber dyeing and cotton printing. Yellow-red color was obtained by coupling with phenol. The coupling speed is slow, and the coupling ability is medium. |
Using sodium 3-acetylamino-4-methoxybenzenesulfonate and benzyl chloride as raw materials, the two are first condensed, and then hydrolyzed to remove the acetyl group to obtain the product. The finished product is filtered, dried and crushed.