Jiangsu, China
Business Type:
Trading Company
Business Range:
Agriculture & Food, Chemicals
Management System Certification:
ISO 9001
Main Markets:
North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern ...
Import & Export Mode:
Have Own Export License
Sample Available

Greenish Ob-1, Optical Brightening Agent 393, Optical Brightener Ob-1 manufacturer / supplier in China, offering Fluorescent Whtening Agent Ob-1 C. I. 393, High-Efficiency Fungicide-Chlorothalonil 75% WP with CAS No. 1897-45-6, High-Efficiency Fungicide-Difenoconazole 250g/L EC with CAS No. 119446-68-3 and so on.

Gold Member Since 2017
Audited Supplier

Fluorescent Whtening Agent Ob-1 C. I. 393

Get Latest Price
Min. Order / Reference FOB Price
1 kg US $15-30/ kg
Port: Shanghai, China
Production Capacity: 5000mt/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Color: Greenish Yellow
Appearance: Powder
C.I. No.: 393
Melting Point: 355-360
Purity(HPLC): 98.5%Min
Transport Package: in 25kg Carton

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Basic Info

Model NO.: OBA 393
Trademark: LEPUZ
Specification: C28H18N2O2
Origin: China
HS Code: 32042000

Product Description

Optical Brightener OB-1


  • Coatings
  • Plastics
  • Man-made fibers
  • Polyester
  • Polymers
  • Recycled polymers

Key Attributes

  • Colors appear more brilliant
  • Environmentally friendly
  • Excellent brightening ability
  • Produce a bluish tinge, masking yellowness
  • Whiter-than-white appearance

Product Description

LEPUZ optical brighteners significantly improve the whiteness in both textile fibers and plastics. In polyester and nylon fibers, LEPUZ optical brighteners impart a pleasing whiter-than-white appearance and give more intensity to some colors as well. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers, LEPUZ OB-1 is an effective brightener for many plastics. LEPUZ OB-1 provides an excellent white, permanent color since the brightener is dissolved in the polymer or fiber during polymer manufacture. This permanence gives much better brightness retention over time versus other methods such as bleaching or surface treatment with optical brighteners. Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellow color of a polymer and provide the whiter-than-white appearance.


Typical Properties

PropertyTypical Value
AppearanceYellow greenish powder
Specific Gravity @ 20ºC/20ºC1.39
Melting Point359-361ºC
Assay98 wt % min
Particle SizePass 200 mes

Main products

Optical brightener: OB-1   OB   NFW   MDAC(SWN)   KSN   KCB   FP-127   CBS-X

Pigment: Red 122   Yellow 110   Yellow 138   Violet 23   Violet 19

UV Stabilizer: 783   770   944   622   292

Antioxidant: 168   1010   1076   245   425   BHT(264)   2246

UV Absorber: 1577   531   571   234   1130   360   99-2   UV-1   327   328   326   329   

Our Services

Our factory has advanced production and equipments, which can be used for testing and reprocessing to ensure the high quality and meet customers' different requirements, so that we can offer technology consultion for customers.

Cooperated with outstanding shipping agent, we can supply quality and convenient shipping service.

Besides, with professional staves, costomers can receive accurate and timely reply.

Company Information

NANJING LEPUZ CHEMICAL CO., LTD is an ISO-certificated modernized chemical enterprise concentrating on the production, sales and service for plastic and coating additives, fine chemicals and intermediates. Our products are used in plastic and rubber industry ,medical industry, paints, printing inks and etc.

With profound chemistry knowledge and rich experiences, our business team can offer professional customized technical supports and solution for customer's demands.

Welcome to contact us. Hope we can have good cooperation and bright future.

Fluorescent Whtening Agent Ob-1 C. I. 393

Fluorescent Whtening Agent Ob-1 C. I. 393
Fluorescent Whtening Agent Ob-1 C. I. 393




Fluorescent Whtening Agent Ob-1 C. I. 393


1. Are you a factory or tarding company?

    Our company concentrates on on the production, sales and service for plastic and coating additives, fine chemicals and intermediates.

2. Where dose your company locate?

    We locate in Nanjing, Jiangsu province of China.

3. Can you provide samples for quality checking before placing an order?

    Samples are avaliable upon request, but the shipping cost should be paid by customer.

4. How to get the price list?

    Please inqire us by alibaba/email.

5. What's your payment term?


6. What's your lead time?

    Aroud two weeks after order.

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