Optical Brightener ER-III

Chemical Name: 1,4-Bis(P-Cyanostyryl)Benzene
C.I.NO. : 199:2
CAS NO. : 13001-40-6
Molecular Structure:

Appearance: Yellowish to greenish powder, greenish shade
Assay: 99%min.         
Application: Can be used in polyester, ethylic acid, nylon, esp. in plastic, it could improve thermal stability when mix with ER-I, ER-II.
Use Method: Add 0.02-0.08% in polyester fiber, adjust dosage according whiteness requirement, or add delustering agent, blue violet dyes. If mix with ER-I, ER-II, best dosage is 10%-60%.
Packing: 25kgs/drum or as per request.