1H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one

Supplier: RPI
Danger

Synonyms: Allopurinol

A21000-100.0 A21000-1000.0 A21000-150.0 A21000-25.0 A21000-5.0
76344-832EA 345.97 USD
76344-832 76344-834 76344-836 76344-838 76344-840
1H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one
1H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one

Allopurinol is a purine analog.


  • It is a structural isomer of hypoxanthine.

Formula: C₅H₄N₄O
MW: 136.11 g/mol
Melting Pt: > 300 °C
Storage Temperature: Ambient
MDL Number: MFCD00599413
CAS Number: 315-30-0
EINECS: 206-250-9
UN: 2811
ADR: 6.1,III

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Specification Test Results

Appearance White or almost white powder
Unspecified Impurity ≤ 0.1 %
Limited of Hydrazine ≤ 10 ppm
Heavy Metals (as Pb) ≤ 20.0 ppm
UV Ratio 0.52 - 0.60

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