Nylon Fluorescent Brightener OB-I/C.I. 393 CAS 1533 45 5

Basic Information
Place of Origin: China
Brand Name: LONGPU
Certification: REACH,SGS,ISO9001
Model Number: OBA OB-I
Minimum Order Quantity: 50KG
Price: Confirm the order date
Packaging Details: 25kg
Delivery Time: Within 7days
Payment Terms: T/T ,L/C
Supply Ability: Prompt
CAS NO: 1533-45-5 HPLC: 99%
C.I.: 393 Melting Point: 289-291℃
Fineness: Over 300 Emsh Odor: Free Of Odor
High Light:

optical brightener for pvc


optical brightener for polyester

high whitening Optical Brightener Agent OB-I 393 for Nylon CAS NO 1533-45-5



Product Cate Optical Brightening Agent For Plastic
Product Name Optical Brightening Agent OB-1
Chemical Name 2.2’-(4.4’-diphenol vinyl) dibenzoxazol
CAS No. 1533-45-5
C.I. No. 393
Structural Formula Nylon Fluorescent Brightener OB-I/C.I. 393 CAS 1533 45 5 0
Molecular Formula C28H18N2O2
Molecular Weight 414
Technical Index Appearance:yellowish green powder
Melting Point:357~359°C


1. Suitable for polyester fiber, nylon fiber and polypropylene.
2. Suitable for polypropylene plastics, hard PVC, ABS, EVA, polystyrene, polycarbonate etc.


Properties Properties & Features:
1. High whitening force, strong fluorescence
2. Wide range of application, widely used for the whitening of polyesters, nylon fibre and various plastics.
3. Excellent resistance to high temperature

Contact Details

Phone Number : +86-21-80181916

WhatsApp : +8618516375790