Description
| Trade Name | Optical Brightener ER-I |
| Chemical Name | 1,4′-bis(2-cyanostyryl) Benzene |
| CAS No. | 13001-39-3 |
| C.I. No. | 199 |
| Molecular Formula | C24H16N2 |
| Molecular Weight | 332 |
| Properties | It has high whitening brightening effect and excellent fastness to sublimation. |
| Technical Index | Appearance:greenish yellow crystalline powder Melting Point:230-232°C Purity:≥99% Maximum UV Absorption Spectrum:365nm. |
| Uses | Mainly be used in whitening of polyester fiber and as the raw material of paste form brightening agent in textile dyeing. |
