OB-1 393 optical brightening agent is a yellow-green powder,very popular in Pakistan.It is widely used in various plastic products,have a good whitening effect for PET,PE,PP,PC，its one of the best optical brighteners.
Product Name:Optical Brightener OB-1
Chemical Name:2.2’-(4.4’-diphenol vinyl) dibenzoxazol
CAS No.:1533-45-5
C.I. No.:393
Molecular Formula:C28H18N2O2
Molecular Weight:414
Technical Index:Appearance:yellowish green powder
Melting Point:357~359°C
Purity:≥98.5%
Recommend Dosage:200-500g per 1000kg material
Package:10KG/25kg per fiber drum with 450kg or 500 kg or 675kg/pallet
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