Product Certification&
    Enterprise Certification

  • Mr.Wei Fei
    Tel: +86-571-85134551

  • Mobile:
  • Tel:+86-571-85134551
  • Fax:+86-571-85134895
  • URL:http://www.afinechem.com
  • Province/state:zhejiang
  • City:Hangzhou
  • Street:No. 206 Zhen Hua Road, Hangzhou 310030, Zhejiang, China
  • MaxCard:
Home > Products >  OPTICAL BRIGHTENER OB-1 C.I.393

OPTICAL BRIGHTENER OB-1 C.I.393 CAS NO.1533-45-5

  • Min.Order: 0 Metric Ton
  • Payment Terms: L/C,D/P,T/T,Western Union
  • Product Details

Keywords

  • FLUORESCENT BRIGHTENER 393
  • OPTICAL BRIGHTENER OB-1
  • Fluorescent Brightener OB-1

Quick Details

  • ProName: OPTICAL BRIGHTENER OB-1 C.I.393
  • CasNo: 1533-45-5
  • Appearance: yellowish green powder
  • Application: Outstanding whitener of polyester and ...
  • DeliveryTime: one week
  • PackAge: 25kg/drum
  • Port: any in china
  • ProductionCapacity: Metric Ton/Day
  • Purity: 98%
  • Storage: 2 years
  • Transportation: by air, by sea
  • LimitNum: 0 Metric Ton

Superiority

 
Our Services
1. Excellent, stable and continue quality
2. Competitive price
3. Supply free small sample for client testing
4. Prompt delivery
 
Our advantages
1. Government awarded company. Top 100 enterprises in Hangzhou
2. More than 10 years experiences in chemical international trading
3. Fast response on customers request and fast shipment
 
Company Information
***Honor: Top 100 Imp & Exp enterprises of Hangzhou China.
Top 100 innovation- oriented export enterprises of Hangzhou China.
 
*** We have great enthusiasm and patience, we are conscientious and responsible.
***10 years exporting experience in chemicals, pharmaceutiucals, intermediates.
*** Strong in Optical Brightener /Fluorescent brightener (OBA) for polyester, cotton, paper, plastics, and detergent, pigments, dyestuffs.
*** We have successful experience in international market , such as India, Europe, USA, Africa, North America, South America, South Asia, South-east Asia, Japan, Korea, and Hong Kong

 

Details

Appearance: yellowish green powder
Melting Point: 350~360°C
Purity:≥98.0%

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.

Other products of this supplier

lookchemhot product CAS New CAS