Methyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside CAS 55722-48-0
| CAS No. | 55722-48-0 |
| Molecular Formula | C15H22O9S |
| Molecular Weight | 378.39 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 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside (CAS 55722-48-0), molecular formula C15H22O9S and molecular weight 378.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 2-3-4-6-tetra-O-acetyl-β-D-thiogalactopyranoside (C15H22O9S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 378.39 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H22O9S |
| Molecular Weight | 378.39 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 2-3-4-6-tetra-O-acetyl-β-D-thioglucopyranoside (CAS 13350-45-3)
- Methyl 2-3-4-6-tetra-O-acetyl-α-D-thiomannopyranoside (CAS 64550-71-6)
- Methyl 1-2-3-4-tetra-O-acetyl-α-L-idopyranuronate (CAS 108032-41-3)
- 1,2,3,4-TETRA-O-ACETYL-A-D-GALACTURONIC ACID METHYL ESTER (CAS 30628-07-0)
- 1-2-3-4-Tetra-O-acetyl-D-galacturonic acid methyl ester (CAS 3082-96-0)
- Methyl tetra-O-acetyl-alph-D-glucopyranuronate (CAS 5432-32-6)
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