(2R,3R,4S,5S,6R)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl tribenzoate CAS 18929-75-4
| CAS No. | 18929-75-4 |
| Molecular Formula | C28H26O8 |
| Molecular Weight | 490.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (2R,3R,4S,5S,6R)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl tribenzoate (C28H26O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 490.50 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (2R,3R,4S,5S,6R)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl tribenzoate (CAS 18929-75-4), a certified reference material (molecular formula C28H26O8, MW 490.50 g/mol) for analytical method development and quality control.
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 | C28H26O8 |
| Molecular Weight | 490.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Recommended Standards
- (2R,3S,4R,5R,6S)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triyl tribenzoate (CAS 14686-82-9)
- Methyl 2,3,6-Tri-O-benzoyl-4-deoxy-α-D-glucopyranoside (CAS 19488-41-6)
- 2,5-Bis(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)terephthalic acid (CAS 1374006-27-5)
- (1R,3S)-Compound E (CAS 504428-17-5)
- 6-Amino-2h,3h-imidazo[2,1-b][1,3]thiazole-5-carbonitrile (CAS 97876-69-2)
- (S)-tert-Butyl 3-((6-(diethylamino)pyrimidin-4-yl)oxy)pyrrolidine-1-carboxylate (CAS 1354015-15-8)
- 1-(2,6-Difluorophenyl)-2-(isopropylthio)ethan-1-one (CAS 1179252-28-8)
- Methyl 4-(difluoromethyl)cyclohexane-1-carboxylate (CAS 1383985-52-1)
- 5-Cyclohexylthiazol-2-amine (CAS 851233-58-4)
- 3-((3-Methyl-1H-pyrazol-1-yl)methyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepine (CAS 1174856-18-8)
- 5-Bromo-2-fluoro-4-methylaniline (CAS 945244-29-1)
- 2-(2-Ethoxyphenyl)propan-1-amine (CAS 1096868-27-7)
- (3-Ethoxy-propyl)-(3-methyl-thiophen-2-ylmethyl)-amine hydrochloride (CAS 1052421-08-5)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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