high purity 2,2'-(...

high purity  2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole /FLUORESCENT BRIGHTENER OB-1 C.I.393   cas no.1533-45-5
high purity  2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole /FLUORESCENT BRIGHTENER OB-1 C.I.393   cas no.1533-45-5

high purity 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole /FLUORESCENT BRIGHTENER OB-1 C.I.393 cas no.1533-45-5

Min.Order / FOB Price:Get Latest Price

25 Kilogram

Negotiable

  • Min.Order :25 Kilogram
  • Purity: 98.0%(min)
  • Payment Terms : L/C,D/P,T/T,

Keywords

FLUORESCENT BRIGHTENER 393 OBA OB-1 FLUORESCENT BRIGHTENER OB-1

Quick Details

  • Appearance:yellowish green powder
  • Application:C.I.No.: 393 Chemical name: 2.2’-(4.4’-diphenol vinyl) dibenzoxazol CAS NO: 1533-45-5 Formula: C28H18N2O2 Melting Point: 357~359°C Application: mainly be used in whitening of polyester and plastic,
  • PackAge:Packaged in cardboard drums,25kg each
  • ProductionCapacity:|Metric Ton|Day
  • Storage:Stored in closed containers in dry cool conditions
  • Transportation:by air;by sea; by express;Normal Good

Superiority:

FLUORESCENT BRIGHTENER OB-1

C.I.No.: 393 Chemical name: 2.2’-(4.4’-diphenol vinyl) dibenzoxazol CAS NO: 1533-45-5 Formula: C28H18N2O2 Melting Point: 357~359°C App…

Our Services
1. New Molecules R&D
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3. API and Intermediates from China reputed manufacturers
4. Documents support COA MOA MSDS DMF open part

Our advantages
1. Government awarded company. Top 100 enterprises in Hangzhou
2. Quality warrant. If any quality failure. we 100% return the payment or replacement
3.More than 9 years experiences in pharmaceutical and chemical international trading
4.Fast response on customers request and fast shipment

 

Details:

FLUORESCENT BRIGHTENER OB-1

C.I.No.: 393 Chemical name: 2.2’-(4.4’-diphenol vinyl) dibenzoxazol

CAS NO: 1533-45-5

Formula: C28H18N2O2

Melting Point: 357~359°C

Application: mainly be used in whitening of polyester and plastic, as well in whitening of PET, Nylon during polymerization.

Company Introduction

1. Established in 2005, with two independent business divisions: Fine chemicals division;  Pharmaceutical division.

a. "Top 100 innovation-oriented export enterprises Of Hangzhou" honored by Hangzhou government   

b. Specialized in the fine chemicals and pharmaceuticals

c. A leading manufacturer and trader of APIs in China

2. Main product:

  • Optical brightener
  •  
  • Textile auxiliary
  •  
  • Dye stuff
  •  
  • Pigments
  •  
  • Pharmaceutical active ingredients
  •  
  • Pharmaceutical intermediates
  •  
  • Feed additives

3. Company Picture

 

 

Product Description

Identification of 1533-45-5

Name:

Benzoxazole,2,2'-(1,2-ethenediyldi-4,1-phenylene)bis-

 

EINECS:

216-245-3

Molecular Formula:

C28H18N2O2

CAS Registry Number:

1533-45-5

Synonyms:

Benzoxazole,2,2'-(vinylenedi-p-phenylene)bis- (7CI,8CI); 2,2'-(Vinylenedi-p-phenylene)bisbenzoxazole; 4,4'-Di(benzoxazol-2-yl)stilbene; C.I. 40674; Eastobrite OB 1; Fluorescent Brightener 393; OpticalBrightener 1; Uvitex OB-ONE;

InChI:

InChI=1/C28H18N2O2/c1-3-7-25-23(5-1)29-27(31-25)21-15-11-19(12-16-21)9-10-20-13-17-22(18-14-20)28-30-24-6-2-4-8-26(24)32-28/h1-18H/b10-9+

Molecular Structure:

Benzoxazole,2,2'-(1,2-ethenediyldi-4,1-phenylene)bis- C28H18N2O2 (cas 1533-45-5) Molecular Structure

 

Chemical Properties

Appearance:

solid

Molecular Weight:

414.46

Density:

1.39 g/cm3 (25 C)

Boiling Point:

566.8 °C at 760 mmHg

Melting Point:

357-359℃

Flash Point:

285.1 °C

Storage Temperature:

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

Refractive index:

1.731

Solubility:

Insoluble

Stability:

Stable. Incompatible with strong oxidizing agents.

 

 

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