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2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole (OB-1)

BGC Id:	310861151693
CAS No:	1533-45-5
Synonyms:	optical brightener ob-1 ; optical brighter ob-1 ; ob-c ; ocab ; fluorescentbrightener393 ; b-ob-1 ; obf1 ; 44bis2benzoxazoylstilbene ; obf-1 ; optical brightener 393
Molecular Formula:	C28H18N2O2
Molecular Weight:	414.45
EINECS:	216-245-3

2025 - The most valued supplier

The following 2 notable providers have been checked and can be recommended.

Xiamen Hisunny Chemical

Molecular Formula : C28H18N2O2

Carbone Scientific

What other providers are available for CAS 1533-45-5?

The last intensive check and update was carried out on 2025/10/16.

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Synonyms:

optical brightener ob-1 ; optical brighter ob-1 ; ob-c ; ocab ; fluorescentbrightener393 ; b-ob-1 ; obf1 ; 44bis2benzoxazoylstilbene ; obf-1 ; optical brightener 393

CAS:

1533-45-5

EINECS:

216-245-3

Molecular Formula:

C28H18N2O2

MDL:

MFCD00022846

Properties

Molecular Weight:

414.45 g·mol−1

Melting point:

>300 °C(lit.)

Physical Description:

solid

Suppliers

Xiamen Hisunny Chemical Co., Ltd.

Company type: Leading producer

Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop producing and selling high quality intermediates, Fine chemicals and Specialty Chemicals. We could give you: 1.Best quality in your requirement 2.Competitive price in China market 3.mature Technical support 4.Professional logistic support All we want is win-win business. Send yr. We sell (Z)-2-(2-Aminothiazol-4-yl)-2-acetyloxyiminoacetic acid as well. inquiries, you will get it!

Country: P.R.China Phone: +86-592-3327115 Telefax: +86-592-5823596

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Carbone Scientific Co., Ltd.

Company type: Supplier

Country: U.K.
Phone: +44 (0)203 769 4441 ext 1
Telefax: +44 (0)203 769 4441 ext 2

Carbone scientific is located at London, UK. Carbone Scientific Co., Ltd. is a seller of D-Tyrosine-o-tert-butylether. We are mainly engaged in the marketing development, R&D, technical support and service. Carbone scientific provides fine chemicals, pharmaceutical intermediates, and active pharmaceutical ingredients to the global marketplaces. Our aim is to make those most popular products available to these pharmaceutical and biotech companies, research organizations and university labs worldwide. Our online catalogue has already listed over 50 ...

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Safety Information

Hazard Symbols: Xi

Europe standard Hazard pictograms, code and definition

Hazard Classes:

Risk Codes:

36/37/38 (R)

Safety Codes:

26-37/39-24/25 (S)

WGK Germany:

Storage temperature:

-20 °C

The following providers cannot be verified precisely. The companies have offered the product in the past, but despite all care, the companies could not confirm it 100 percent!

Xingrui Industry Co., Limited

Xingrui Industry CO., LTD. is a professional manufacturing enterprise integrating R&D, production and sales. The products involved fine chemicals, pha... Request

What other providers are available for CAS 1533-45-5?

In addition to the providers presented here for 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole (OB-1) with the CAS number 1533-45-5, there are other 67 providers with slightly different product names available for this CAS number.