Technical Data Sheet

• Product name: Optical brightener OB-1
• Chemical name: 2,2-(4,4’- Vinyl Biphenyl) Dual
• Benzoxazole Product Expiry date:
• Product characteristics: . Appearance:
• yellowish green powder
• Molecular Formula : C₂₈H₁₈N₂O₂
• Structural formula:
• 
  
• Molecular Weight: 414.4     CAS# 1533-45-5    C.I. NO.: 393
• Melting Point:353-359°C
• 
  Manufacturer: Hubel Hongxin Chemical Co., Ltd
• NO.9 Makou Industrial Park, Wuxue Hubei, China 435400

ITEM	STANDARD
Appearance	Yellow to greenish yellow powder
CIE L*a*b*	L*≥102; a*≤-2O; b≥50
Particle size	≥250 mesh(calculated with d(O.9))
Fluorescent Intend (E1%1cm)	≥2050
Content	≥98.00%
Melting point	357 ~ 359°C
Volatile content	≤0.3%
Ash content	≤0.5%
Contamination control	≤5'

Packing	Application	Transport regulations	Storage and handling
25kg-20kg carton/drum two polyethylene inner bag	As plastic whitening agent	No dengerous good in the sense of transport regulations	Storage cool and dry, protect from sun, see MSDS