Sildenafil intermediate- Purine CAS No.:120-73-0

Product name: Sildenafil intermediate- Purine

Alias: 7H-imidazo [4, 5-d] pyrimidine

CAS No.:120-73-0

Molecular formula: C5H4N4

Molecular weight: 120.112

Appearance: Colorless crystal powder, soluble in water.

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