We manufacture optical brightening agent as follow:
1. 4BK (stilbene bistriazine derivative)
2. CBS-X (stilbene derivative) CAS No:27322-41-8
3.EBF (2.5-bis-(benzoxazol-2-)thiophene) C.I. No: 318
4. ER-1 (1.4-bis(2-cyanostyryl)benzene CAS No 13001-40-6
5. ER-2(1.4-bis(2.4-cyano-phenlene)benzene CAS No:13001-40-6
6. FP(1.1-biphenyl-4.4-bis-benzoxazole) CAS No:40470-68-6
7.KCB(1.4-bis(2-benzo9xazoly)naphthalene) CAS No:5.89-22-5
8....
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