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Allopurinol [4-Hydroxypyrazolo-[3,4-d]pyrimidine], 5 Grams

Home Antibiotics Antibiotics ( A - B ) Allopurinol, 5 G
Price$ 36.00

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5 G $ 36.00 25 G $ 91.25 100 G $ 273.50 150 G $ 398.25 1 KG $ 2628.25
  • SKU: A21000-5.0
  • Pack Size: 5 G
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Allopurinol [4-Hydroxypyrazolo-[3,4-d]pyrimidine], 5 Grams
Description Specifications Documents

4-Hydroxypyrazolo-[3,4-d]yrimidine

315-30-0

136.11

C5H4N4O

1M NaOH

Room Temperature


Allopurinol is a purine analog. It is a structural isomer of hypoxanthine.

0.1 lbs

3.38 x 4.63 x 3.38



Research or further manufacturing use only, not for food or drug use.
  • Appearance: White or almost white powder
  • Solubility: Soluble in solution of potassium and NaOH; Very slightly soluble in water and in alcohol; practically insoluble in chloroform and in ether.
  • Identification: Conforms with IR spectrum
  • Impurity A: ≤ 0.2 %
  • Impurity B: ≤ 0.2 %
  • Impurity C: ≤ 0.2 %
  • Impurity D: ≤ 0.2 %
  • Impurity E: ≤ 0.2 %
  • Ethyl-(E/Z)-3-(2-carbethoxy-2-cyanoethenyl) amino-1H-pyrazole-4-carboxylate: ≤ 0.2 %
  • Unspecified Impurity: ≤ 0.1 %
  • Total impurities: ≤ 1.0 %
  • Total impurities other than A,B and C: ≤ 0.3 %
  • Limited of Hydrazine: ≤ 10 ppm
  • Heavy Metals (as Pb): ≤ 20.0 ppm
  • UV Ratio: 0.52 - 0.60
  • UV Spectrum: conforms
  • Sulfated Ash: ≤ 0.1 %
  • Loss on Drying: ≤ 0.5 %
  • Assay (HPLC): 98.0 - 102.0 %
  • BSE/TSE: BSE/TSE Free
  • Grade: USP
  • Country of Origin: China

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