1-2-3-Tri-O-acetyl-4-6-O-benzylidene-β-D-galactopyranose CAS 78962-43-3
| CAS No. | 78962-43-3 |
| Molecular Formula | C19H22O9 |
| Molecular Weight | 394.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-2-3-Tri-O-acetyl-4-6-O-benzylidene-β-D-galactopyranose.
CATO supplies 1-2-3-Tri-O-acetyl-4-6-O-benzylidene-β-D-galactopyranose (CAS 78962-43-3), a certified reference material (molecular formula C19H22O9, MW 394.37 g/mol) for analytical method development and quality control.
Structurally, 1-2-3-Tri-O-acetyl-4-6-O-benzylidene-β-D-galactopyranose (C19H22O9) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 394.37 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-2-3-Tri-O-acetyl-4-6-O-benzylidene-β-D-galactopyranose under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H22O9 |
| Molecular Weight | 394.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
Recommended Standards
- 1-(3-Amino-6-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridin-2-yl)ethan-1-one (CAS 625377-76-6)
- 2-(3-(1H-pyrrol-1-yl)thiophene-2-carbonyl)-N-(3-(trifluoromethyl)phenyl)hydrazine-1-carboxamide (CAS 478062-90-7)
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