Thymidine, Ultrapure

Appearance: White crystalline powder
CAS Number: [50-89-5]
Melting Point: 187 - 189
Molecular Formula: C₁₀H₁₄N₂O₅
Molecular Weight: 242.23
Assay (UV): 99.0% ± 3
Identity: by IR
λ_max: 267nm ± 1 (pH 7)
Extinction Coefficient: [9.65 ± 0.3] x 10³ (pH 7)
Absorbance Ratios (pH 7): A₂₅₀/A₂₆₀: 0.65 ± 0.03; A₂₈₀/A₂₆₀: 0.72 ± 0.03
Loss on drying: <=1.0%
Residue on Ignition: <=1.0%

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