Omnistab OB 1 – CAS: 1533-45-5

About Omnistab OB 1 – CAS: 1533-45-5

Used as fluorescent whitening agent for textile fibers, molded articles and sheets. Offers good resistance to heat. Provides exceptional whitening properties.

  • CAS number: 1533-45-5
  • Chemical name: 4,4'-bis(benzoxazol-2-yl)stilbene
  • Moleculair formula: C28H18N202
  • Molecular weight (g/mol): 414.46
  • Content (%): 98.00 min
  • Melting point/range (ºC): 355 - 360
  • Volatiles (%): 0.50 max
  • Product form(s): Crystalline powder, Powder
  • Packaging option(s): Carton, Drum
Product Data Sheet
Partinchem logo

Product Data Sheet

Omnistab OB 1 – CAS: 1533-45-5

Date: Tuesday, Jun 25, 2024

Product Composition

CAS number:1533-45-5
Chemical name:4,4'-bis(benzoxazol-2-yl)stilbene
Moleculair formula:C28H18N202
Molecular weight (g/mol):414.46

Product Specification

Content (%)98.00 min
Melting point/range (ºC)355 - 360
Volatiles (%)0.50 max
Product form(s):Crystalline powder, Powder
Packaging option(s)Carton, Drum
REACH compliance
Partinchem logo

Regulation EC N˚ 1907/2006

Omnistab OB 1 – CAS: 1533-45-5

Date: Tuesday, Jun 25, 2024

According to Regulation (EC) N˚ 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), all chemical substances on their own, contained in preparations, or in articles, manufactured, imported or used, should comply with the requirements of REACH.

In its role as importer and downstream user Partners in Chemicals has taken its responsibility to continuously consult with its suppliers outside the European Union (EU) about the responsibilities and requirements of REACH and will continue to do so.

In this light, we can inform you that the product that Partners in Chemicals currently supplies to you, Omnistab OB 1 – CAS: 1533-45-5, is a product that is registered with the European Chemicals Agency (ECHA) in compliance with the tonnage band of 1-10mt. The registration number: 01-2120752394-52-****.


Do you need help with anything? Contact us!

Frank van Dongen





Or send a message

  • Hidden
  • This field is for validation purposes and should be left unchanged.