Description
| Trade Name | Optical Brightener ER-II |
| Chemical Name | 1,4′-bis(2,4′-cyano-phenlene)-benzene |
| CAS No. | 13001-38-2 |
| C.I. No. | 199:1 |
| Molecular Formula | C24H16N2 |
| Molecular Weight | 332 |
| Properties | Bluish color shade with high whitening brightening effect and excellent fastness to sublimation. |
| Technical Index | Appearance:slight yellow powder Melting Point:183~185°C Purity:≥99% Maximum UV Absorption Spectrum:369nm |
| Uses | Mainly be used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing. |
