OPTICAL BRIGHTENER OB CAS NO.7128-64-5

• Post Date:

  Mar 16,2023

• Expiry Date:

  Mar 15,2024

• Detailed Description:

  Cas No. :7128-64-5 Quantity: 50Metric Tons
  Price:Negotiable USD Metric Tons
  Payment Method: T/T,L/C,D/P
  OPTICAL BRIGHTENER OB
  Technical Data Sheet (TDS)
  
  Chemistry
  Chemical name: 2.5-Bis-(5-tert-butyl-2-benzoxazolyl)thiophene
  CAS No.：7128-64-5
  Molecular formular：C26H26N2O2S
  Molecular weight：430
  Molecular structure
  
  
  Specification
  Appearance: Slight greenish yellow powder
  Assay, %：≥98.0
  Melting point，℃：200 – 204
  Volatility, %: ≤0.5
  Ash, %: ≤0.5
  Particle size: pass 200 mesh
  
  
  Solubility
  Hardly soluble in water, soluble in alkanes, mineral oils, common organic solvents, etc.
  
  
  Application
  Optical Brightener OB has excellent thermal stability, special whitening performance, good light stability and low volatility. It has an excellent blue effect. It is easily soluble in organic solvents and has good compatibility in different substrates. It is especially suitable for film and sheet for whitening and brightening of polyvinyl chloride, polystyrene, polyethylene polypropylene, thermoplastics, ABS, acetate, paints, paints and printing inks. The maximum absorption of the spectrum is 375 nm (in ethanol) and the maximum emission wavelength is 435 nm (in ethanol)
  
  
  Packing
  25kg/fiber drum lined with plastic bags or 25kg/carton
  
  
  Storage
  Containers should be kept tightly closed when not in use. Store it in a dry, cool, well-ventilated shady place.
  
  
  Recommended Dosage
  0.01-0.05%
  

• CAS Registry Number:

  7128-64-5

• Synonyms:

  ;Fluorescent Brightener OB;Fluorescent brightening agent 184;Fluorescent Whitening Agent OB;Optical Brightening Agent OB;Fluorescent Brightener 184;C.I. 184;Fluorescent Brightener OB-4;Fluorescent brightening agent 184;Optical Brightner OB;BBOT;C.I. Fluorescent Brightener 362;Uvitex 2B;TINOPAL CBS-X;UVITEX OB;UVITEX(R) 2B;TOSLAB 644820;2,5-BIS(5'-TERT-BUTYL-2'-BENZOXAZOLYL)THIOPHENE;2,5-BIS(5-TERT-BUTYL-2-BENZOXAZOLYL)THIOPHENE;2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE;2,5-BIS(5-TERT-BUTYLBENZOXAZOYL)-2-THIOPHENE;2,5-BIS(5-T-BUTYL-2-BENZOXAZOLYL)THIOPHENE;2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene;

• Molecular Formula:

  C₂₆H₂₆N₂O₂S

• Molecular Weight:

  430.5618

• Molecular Structure:

  

• Safety Description:

  S24/25:;
  

• Company:

  Guangzhou Chengshuai New Material Co.,Ltd.     [ China ]        

• Contact:

  David

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