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  • Water reducing admixture products
  • Poly(ethylene glycol) products
  • AEO products
  • Petroleum additive series
  • Thionate products
  • Lithium battery electrolyte solution products
  • Pharmaceutical intermediate products

Pharmaceutical intermediate products

Glutaric anhydride

Product name: Glutaric anhydride
CAS RN: 108-55-4
Molecular formula:  C5H6O3
Molecular weight: 104.10
Structural formula:

Properties:
white acicular crystal. Soluble in ethyl ether, ethyl alcohol and tetrahydrofuran. 
Uses: Functions as intermediate for synthetic chemical, pharmaceutical material and biological pharmacy.
Quality index

Quality index

Index

Test method

Appearance

White acicular crystal

Visual inspection

Content,    % 

≥98

QB

Melting point,   ℃

55~56

Automatic melting point detector

Ignition residue, ppm 

≤500

GB/T511

Water insoluble matter, ppm 

≤50

GB/T268

Moisture,    % 

≤0.1

GB/T260

Clarity of solution, # 

≤50

 Pt-Co method

Packing: fiber drum lined with plastic, net weight 25kg/drum.
Storage: Keep in cool and dry place, to protect from fire, direct sunlight and damp.

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