Ceftriaxone sodium
- CAS NO. : 104376-79-6
- CAT NO. : PH-INT-6796
Physical State: Solid (powder or crystalline)
Color: White to off-white
Melting Point: 236 °C (decomposes)
–165° (c = 1, in water, calculated for water-free substance)
Refractive Index: –160° (C = 1, H₂O)
Solubility: Soluble in water (≈50 mg/mL); poor solubility in most organic solvents
pKa: ~3 (carboxyl group), 3.2 (NH₃⁺), 4.1 (enolic OH)
Storage Conditions: Keep in a dark place, under inert atmosphere, 2–8 °C
Molecular Formula: C₁₈H₁₆N₈Na₂O₇S₃ · 3.5H₂O
Molecular Weight: ≈ 661.6 g/mol
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