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PH-API-3432

Methylprednisolone

  • CAS NO. : 83-43-2
  • CAT NO. : PH-API-3432

Physical State: Solid (white to almost white crystalline powder)

Molecular Formula: C₂₂H₃₀O₅

Molecular Weight: ~374.47 g/mol

Melting Point: 228–237 °C (decomposition)

Specific Rotation: [α]D²⁰ +83° (dioxane, c=1)

Boiling Point: ~423 °C (rough estimate)

Density: ~1.0868 g/cm³ (rough estimate)

Refractive Index: ~82° (c=1, dioxane)—note: this value is likely a mislabeling of specific rotation

Storage Conditions: 0–6 °C; store under inert gas, protected from light; air sensitive

Solubility: ~50 mg/mL in chloroform/methanol (9:1), clear faint yellow solution

Predicted pKa: ~12.46 ± 0.70

Water Solubility: ~0.12 g/L at 25 °C

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PH-API-3432