(2R,3R)-1,4-Bis(benzyloxy)butane-2,3-diol CAS 91604-41-0
| CAS No. | 91604-41-0 |
| Molecular Formula | C18H22O4 |
| Molecular Weight | 302.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2R,3R)-1,4-Bis(benzyloxy)butane-2,3-diol (CAS 91604-41-0), molecular formula C18H22O4 and molecular weight 302.36 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H22O4, (2R,3R)-1,4-Bis(benzyloxy)butane-2,3-diol contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 302.36 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 | C18H22O4 |
| Molecular Weight | 302.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
Recommended Standards
- 1,4-Bis(((2,3-dihydrofuran-3-yl)methoxy)methyl)benzene (CAS 190584-93-1)
- (2R,3R)-3,4-bis(benzyloxy)butane-1,2-diol (CAS 960365-70-2)
- (2S,3S)-1,4-Bis(benzyloxy)butane-2,3-diol (CAS 17401-06-8)
- (4R,4'R,4''R,5'R)-2,2,2',2',2'',2''-Hexamethyl-4,4':5',4''-ter(1,3-dioxolane) (CAS 3969-59-3)
- (4S)-4-(Bromomethyl)-2-phenyl-1,3-dioxane (CAS 201743-52-4)
- 5-Bromo-2-chloro-3-isopropylpyridine (CAS 1256804-33-7)
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- (3R,4S,5S,6R)-2-(Dodecyloxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (CAS 27836-64-2)
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