BGC » Chemicals A-Z » Fluorescent brightener-OB-1

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Fluorescent brightener-OB-1

BGC Id:	690759074389
CAS No:	1533-45-5
Synonyms:	44bis2benzoxazoylstilbene ; optical brightener 393 ; optical brighter ob-1 ; ob-c ; fluorescentbrightener393 ; ocab ; obf-1 ; optical brightener ob-1 ; b-ob-1 ; obf1
Molecular Formula:	C28H18N2O2
Molecular Weight:	414.45
EINECS:	216-245-3

The most competitive supplier in 2025

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

Beijing Century Richap Chemistry

Skyrun Industrial

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

The last intensive check and update was carried out on 2025/07/31.

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Synonyms:

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

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

Beijing Century Richap Chemistry Co., Ltd.

会社のタイプ: Bulk chemical producer

Beijing Century Richap Chemicals Co., Ltd. is one of the strong chemical companies in China in the field of organic intermediates of manufacturing, marketing and distributing for the fine and specialty chemicals. Beijing Century Richap Chemistry Co.,Ltd is the sharholder of Lianyungang Richap Plant, Taicang Richap No.1 plant and Taicang Richap No.2 plant. They are ISO9001:2000,ISO14001 certificate enterprises. With the support of our Beijing Richap R&D, and R&D located in B ...

カントリー: P.R.China 電話: +86-10-8210 2332 ファックス: +86-10-64455595

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Skyrun Industrial Co., Ltd.

会社のタイプ: Leading producer

カントリー: P.R.China
電話: +86-576-84015261
ファックス: +86-576-84015261

Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. 我々としてもAmifostineを提供します。 & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...

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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

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

In addition to the providers presented here for Fluorescent brightener-OB-1 with the CAS number 1533-45-5, there are other 78 providers with slightly different product names available for this CAS number.

B-OB-1

Tianjin Zhongxin Chemtech Co., Ltd.

Optical brightener OB-1

Simagchem Corporation | H&Z Industry Co.,Ltd | Zehao Industry Co., Ltd. | BuGuCh & Partners +6 additional providers that we know from the past

Lauryl glycerine stearate

+2 additional providers that we know from the past

Fluorescent brightener 393

+3 additional providers that we know from the past

Fluorescent whitening agent OB-1

+3 additional providers that we know from the past

4,4'-bis-(2-Benzoxazolyl)stilbene

+8 additional providers that we know from the past

2,2'-(4,4'-diphenolvinyl) dibenzoxazol

+2 additional providers that we know from the past

Fluorescent Brightener OB-1 (C.I.FB393)

Dayang Chem (Hangzhou) Co.,Ltd. +7 additional providers that we know from the past

1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene

Capot Chemical Co., Ltd. +1 additional providers that we know from the past

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

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

Xiamen Hisunny Chemical Co., Ltd. | Xingrui Industry Co., Limited | Carbone Scientific Co., Ltd. +11 additional providers that we know from the past

2-[4-[(E)-2-[4-(1,3-Benzoxazol-2-yl)phenyl]ethenyl]phenyl]-1,3-benzoxazole

+1 additional providers that we know from the past