598-50-5 Methylurea 1-methylurea
Appearance | White Powder |
CAS No | 598-50-5 |
Application | Pharm Intermediates |
Boiling point | 131.34°C (rough estimate) |
MF | C2H6N2O |
MW | 74.08 |
Purity | 99% |
Item
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Standard
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Test Results
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A.H-NMR:Comply with the structure
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Complies
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B.LC-MS:Comply with the structure
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Complies
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C.The IR spectrum of sample should be identical with that of reference standard;
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Complies
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D.HPLC-ESI-MS
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
Complies
|
|
Crystallinity
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meets the requirements.
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Complies
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Loss on drying
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≤2.0%
|
0.19%
|
Heavy metals
|
≤10 ppm
|
<10ppm
|
Water
|
≤1.0%
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0.1%
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Sulphated ash
|
≤0.5%, determined on 1.0 g.
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0.009%
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|
Unspecified impurities: for each impurity ≤0.10%
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<0.10%
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Total Impurity ≤0.5%
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0.18%
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|
Purity
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≥99.0%
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99.7%
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Assay
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99.0%~101.0% (anhydrous substance).
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99.8%
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Storage
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Preserve in well-closed, light-resistant and airtight containers.
|
Complies
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