(2R,3S,4R,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl 2-hydroxy-3-methoxybenzoate CAS 172377-87-6
| CAS No. | 172377-87-6 |
| Molecular Formula | C14H18O9 |
| Molecular Weight | 330.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2R,3S,4R,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl 2-hydroxy-3-methoxybenzoate (CAS 172377-87-6), molecular formula C14H18O9 and molecular weight 330.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H18O9, (2R,3S,4R,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl 2-hydroxy-3-methoxybenzoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C14H18O9 |
| Molecular Weight | 330.29 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
Recommended Standards
- 2'-Carboxy-4-dimethylamino-2-hydroxy-5'-nitrobenzophenone (CAS 166442-40-6)
- Aflatoxin B2a (CAS 17878-54-5)
- 166442-35-9 2'-Carboxy-4-dimethylamino-2-hydroxy-4'-nitrobenzophenone 2-(4-Dimethylamino-2-hydroxybenzoyl)-5-nitrobenzoic Acid (CAS 166442-35-9)
- (2Z)-2-{[(2,4-difluorophenyl)amino](hydroxy)methylidene}-3-oxo-4-phenoxybutanenitrile (CAS 866151-81-7)
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- Cinuperone (CAS 82117-51-9)
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