Methyl 4-7-8-9-tetra-O-acetyl-2-thio-N-acetyl-α-D-neuraminic acid methyl ester CAS 116450-06-7
| CAS No. | 116450-06-7 |
| Molecular Formula | C21H31NO12S |
| Molecular Weight | 521.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 4-7-8-9-tetra-O-acetyl-2-thio-N-acetyl-α-D-neuraminic acid methyl ester (CAS 116450-06-7), molecular formula C21H31NO12S and molecular weight 521.54 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H31NO12S, Methyl 4-7-8-9-tetra-O-acetyl-2-thio-N-acetyl-α-D-neuraminic acid methyl ester contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 521.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Methyl 4-7-8-9-tetra-O-acetyl-2-thio-N-acetyl-α-D-neuraminic acid methyl ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H31NO12S |
| Molecular Weight | 521.54 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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