(2R,3R,4S,5R,6S)-2-bromo-6-(bromomethyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate CAS 53990-76-4
| CAS No. | 53990-76-4 |
| Molecular Formula | C12H16Br2O7 |
| Molecular Weight | 432.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2R,3R,4S,5R,6S)-2-bromo-6-(bromomethyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 53990-76-4), molecular formula C12H16Br2O7 and molecular weight 432.06 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (2R,3R,4S,5R,6S)-2-bromo-6-(bromomethyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (C12H16Br2O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 432.06 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.
As a certified reference material (CRM), (2R,3R,4S,5R,6S)-2-bromo-6-(bromomethyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate 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 | C12H16Br2O7 |
| Molecular Weight | 432.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
Recommended Standards
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- 2-(3-Chloro-2,6-difluorophenyl)acetaldehyde (CAS 1256479-70-5)
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- (R)-2-allylpiperidine hydrochloride (CAS 139163-21-6)
- 3-Methyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine-6-carboxamide (CAS 1934260-67-9)
- 2-Bromo-4-nitrobenzene-1-sulfonyl chloride (CAS 1099660-60-2)
- Peptide 435 (CAS CATO-CPTD788435)
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