Metformin
- CAS NO. : 657-24-9
- CAT NO. : PH-API-7249
Physical State: Solid (white to light brown crystalline powder)
Melting Point: 232–233 °C
Boiling Point: Rough estimate ~229.2 °C
Density: ~1.28 g/cm³ (some sources report 1.30 ± 0.1 g/cm³)
Storage Conditions: Store sealed, in dark, dry room-temperature conditions
Solubility:
Water: Freely soluble (~50 mg/mL at 25 °C)
Methanol: Freely soluble
Ethanol: Slightly soluble
Chloroform/Ether: Insoluble
pKa: ~2.8 (measured in water at ~32 °C; reported as uncertain)
Refractive Index: ~1.5760 (estimated)
Molecular Formula: C₄H₁₁N₅
Molecular Weight: ~129.16 g/mol
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