(2S,3S,4S,5R,6R)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol CAS 4990-84-5
| CAS No. | 4990-84-5 |
| Molecular Formula | C7H13ClO5 |
| Molecular Weight | 212.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2S,3S,4S,5R,6R)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol (CAS 4990-84-5), molecular formula C7H13ClO5 and molecular weight 212.63 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (2S,3S,4S,5R,6R)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 212.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures (2S,3S,4S,5R,6R)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol 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 | C7H13ClO5 |
| Molecular Weight | 212.63 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Recommended Standards
- (2S,3R,4S,5R,6S)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol (CAS 21307-62-0)
- (E)-3-(3-Chloro-4-methoxyphenyl)acrylic acid (CAS 58236-76-3)
- (2S,3R,4S,5R,6R)-2-(chloromethyl)-6-methoxytetrahydro-2H-pyran-3,4,5-triol (CAS 58178-94-2)
- (e)-3-(5-Chloro-2-methoxyphenyl)acrylic acid (CAS 90798-07-5)
- 2-(4-Bromophenyl)-3-oxopentanenitrile (CAS 857483-87-5)
- 5-(2,4,6-Trichlorophenyl)oxazole (CAS 2364585-18-0)
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- 2-((((1-Isopropyl-1H-pyrazol-5-yl)methyl)amino)methyl)benzoic acid hydrochloride (CAS 1856089-57-0)
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