1. Chinese name: 6-hydroxy-2,4, 5-triaminopyrimidine sulfate, triamine, triaminopyrimidine sulfate, folate EP impurity B sulfate, 5-triamino-6-hydroxy-pyrimidine sulfate, 2,4, 5-triamino-6-hydroxy-pyrimidine sulfate

2. English name: 6-hydroxy-2,4,5-triaminopyrimidine sulfatehydrate, 4-hydroxy-2,5, 6-triaminopyrimidine,2,4, 5-triamino -6-hydroxy pyrimidine sulfate

3. CAS: 35011-47-3

4. Chemical formula: C₄H₉N₅O₅S

5. Molecular weight: 239.21

6. Physical and chemical properties: density 2.033g/cm3, melting point ≥300°C(lit.), boiling point 277℃ at 760 mmHg. Solid, light yellow powder. Soluble in water, under acidic conditions, 6-hydroxy-2,4, 5-triaminopyrimidine sulfate will undergo a condensation reaction to form a polymer. It can also react with metal ions to form complexes.

7. Customs No.: 29349990

8. Use: The downstream product 2-amino-6-hydroxypurine folate