1,2,3-Tri-O-benzyl-4,6-O-benzylidene-b-D-galactopyranose CAS 57783-80-9
| CAS No. | 57783-80-9 |
| Molecular Formula | C34H34O6 |
| Molecular Weight | 538.63 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-benzyl-4,6-O-benzylidene-b-D-galactopyranose.
1,2,3-Tri-O-benzyl-4,6-O-benzylidene-b-D-galactopyranose (CAS 57783-80-9) is a high-purity analytical reference standard with the molecular formula C34H34O6 and a molecular weight of 538.63 g/mol.
1,2,3-Tri-O-benzyl-4,6-O-benzylidene-b-D-galactopyranose (C34H34O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C34H34O6 |
| Molecular Weight | 538.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Recommended Standards
- [1,3′:1′,1′′:3′′,1′′′-Quaternaphthalene]-2′,2′′-diol (CAS 863659-87-4)
- 1-2-3-Tri-O-benzyl-4-6-O-benzylidene-α-D-galactopyranoside (CAS 53929-36-5)
- (S)-[2,3':1',1'':3'',2'''-Quaternaphthalene]-2',2''-diol (CAS 863659-89-6)
- 1-2-3-Tri-O-benzyl-4-6-O-benzylidene-α-D-mannopyranose (CAS 57783-75-2)
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