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Optical Brightener Agent OB-I/C.I.393

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Optical Brightener Agent OB-I/C.I.393
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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

Basic Infomation
Place of Origin: China
Brand Name: Longpu
Certification: REACH,SGS,ISO9001
Model Number: OBA OB-I
Payment & Shipping Terms
Packaging Details: 25kg fiber drum
Delivery Time: Prompt
Payment Terms: T/T ,L/C
Supply Ability: Prompt
Product Description

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 Optical Brightener Agent OB-I/C.I.393 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
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