(2R,3R,4R,5S,6S)-2-hydroxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl triacetate CAS 28915-80-2
| CAS No. | 28915-80-2 |
| Molecular Formula | C12H18O8 |
| Molecular Weight | 290.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(2R,3R,4R,5S,6S)-2-hydroxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl triacetate (CAS 28915-80-2), molecular formula C12H18O8 and molecular weight 290.27 g/mol, is a CATO reference standard with documented purity and traceability.
(2R,3R,4R,5S,6S)-2-hydroxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl triacetate (C12H18O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C12H18O8 |
| Molecular Weight | 290.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Recommended Standards
- (2R,3R,4R,5R)-2-(acetoxymethyl)-5-methoxytetrahydrofuran-3,4-diyl diacetate (CAS 37077-80-8)
- (2R,3R,4S,5S)-2-(Acetoxymethyl)-5-methoxytetrahydrofuran-3,4-diyl diacetate (CAS 22224-39-1)
- (2,3-Dihydroxyphenyl)(2-hydroxy-4,6-dimethoxyphenyl)methanone (CAS 219861-73-1)
- (2R,3S,4R)-2-hydroxy-6-oxohexane-1,3,4-triyl triacetate (CAS 69503-96-4)
- 5-Bromo-6-methoxypicolinaldehyde (CAS 1206775-52-1)
- 3-(Benzyloxy)benzene-1,2-diamine (CAS 89521-55-1)
- (3-Bromo-5-nitrophenyl)boronic acid (CAS 380430-48-8)
- 1-(2-Methoxypropyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1567040-83-8)
- 1-(chloromethyl)-1-methylcyclobutane (CAS 38401-40-0)
- 4-(4-Aminophenylsulfonamido)phenylacetic Acid (CAS 857558-63-5)
- 4-(2,6-Dichlorophenyl)pyrrolidin-2-one (CAS 22558-37-8)
- methyl 3-(tert-butoxy)-2,2-dimethylpropanoate (CAS 35889-99-7)
- Dotinurad Impurity 154 (CAS CATO-C4X-2494154)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
Why CATO?
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