| CAS No. | 130796-15-5 |
| Molecular Formula | C16H22O10S |
| Molecular Weight | 406.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1-2-3-4-6-Penta-O-acetyl-α-D-thiogalactopyranose (CAS 130796-15-5) is a high-purity analytical reference standard with the molecular formula C16H22O10S and a molecular weight of 406.40 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 1-2-3-4-6-Penta-O-acetyl-α-D-thiogalactopyranose is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 406.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1-2-3-4-6-Penta-O-acetyl-α-D-thiogalactopyranose 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.
| Molecular Formula | C16H22O10S |
| Molecular Weight | 406.40 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Sulfur Atoms | 1 |