2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide CAS 529493-92-3
| CAS No. | 529493-92-3 |
| Molecular Formula | C14H19BrO9 |
| Molecular Weight | 411.20 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 2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide.
2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide (CAS 529493-92-3), molecular formula C14H19BrO9 and molecular weight 411.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide (C14H19BrO9) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 2,3,4,6-Tetra-o-acetyl-alpha-galactosylpyranosyl bromide 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 | C14H19BrO9 |
| Molecular Weight | 411.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
Related Tetra Standards
- 2-3-4-6-Tetra-O-acetyl-α-D-mannopyranosyl bromide - stabilised with 2% CaCO3 (CAS 13242-53-0)
- 3,3＇,5,5＇-Tetra-tert-butyl-2,2＇-dihydroxybiphenyl (CAS 6390-69-8)
- 1,1,6,6-Tetra(thiophen-2-yl)hexane (CAS 1228246-25-0)
- C-(2-3-4-6-Tetra-O-acetyl-1-azido-1-deoxy-α-D-galactopyranosyl)formamide (CAS 180904-09-0)
- 3,3',5,5'-Tetra(1H-imidazol-1-yl)-1,1'-biphenyl (CAS 1373155-12-4)
- 3,3',5,5'-Tetra(1H-pyrazol-4-yl)-1,1'-biphenyl (CAS 2630939-88-5)
- Tetra-N-Pentyltin (CAS 3765-65-9)
- 5-(2-3-4-6-Tetra-O-acetyl-β-D-galactopyranosyl) tetrazole (CAS 64714-42-7)
Recommended Standards
- ((2R,3S,5R)-5-(6-amino-9H-purin-9-yl)-3-hydroxytetrahydrofuran-2-yl)methyl trihydrogen diphosphate (CAS 2793-06-8)
- Gastrodin Impurity 2 (CAS 6919-96-6)
- (2R,3R,4R,5R,6S)-2-(Acetoxymethyl)-6-bromotetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 19285-38-2)
- 3068-32-4 A820479 [(5R,6R)-3,4,5-triacetyloxy-6-bromanyl-oxan-2-yl]methyl ethanoate acetic acid [(5R,6R)-3,4,5-triacetyloxy-6-bromo-2-oxanyl]methyl ester (CAS 3068-32-4)
- tert-Butyl 4-(ethanesulfonyl)-piperazine-1-carboxylate (CAS 1009576-98-0)
- 2-(Prop-2-en-1-yl)-1h-1,3-benzodiazole hydrochloride (CAS 1423034-64-3)
- Nicergoline Impurity 13 (CAS 30341-93-6)
- 17-(Cyclopropylmethyl)-6,7,8,14-tetradehydro-4,5-epoxy-3-hydroxy-6-methoxy-17-methylmorphinanium Chloride (CAS 1253206-60-8)
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- 2-Azabicyclo[2.2.1]heptane (CAS 279-24-3)
- 3-Chloro-N-(2,5-dimethoxyphenyl)benzamide (CAS 303990-16-1)
- 3-(2,3-Dioxoindolin-5-yl)propanoic acid (CAS 1401319-04-7)
- (S)-2-(Chloromethyl)pyrrolidine (CAS 179116-00-8)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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