Isotope Science / Alfa Chemistry
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Urea (13C; 18O)

Catalog Number ACM1640261864
CAS 1640261-86-4
Molecular Weight 63.05
Molecular Formula 13CH4N218O
Melting Point 132-135 °C (270-275 °F)
Purity 98%
Solubility Water: 480 g/L at 20 °C (68 °F)-completely soluble
Appearance White powder
Isotopic Enrichment 99 atom % 13C; 98 atom % 18O
pH 7.5-9.5 at 480 g/L at 25 °C (77 °F)
Stability Stable if stored under recommended conditions.
CAS (Unlabeled) 57-13-6
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