1,2:5,6-Diisopropylidene-3-O-methyl-α-D-glucofuranose CAS 43138-64-3
| CAS No. | 43138-64-3 |
| Molecular Formula | C13H22O6 |
| Molecular Weight | 274.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2:5,6-Diisopropylidene-3-O-methyl-α-D-glucofuranose (CAS 43138-64-3), molecular formula C13H22O6 and molecular weight 274.31 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,2:5,6-Diisopropylidene-3-O-methyl-α-D-glucofuranose (C13H22O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 274.31 g/mol, it falls into the medium-molecular-weight range. 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).
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.
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 | C13H22O6 |
| Molecular Weight | 274.31 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1969 |
Related Diisopropylidene Standards
Recommended Standards
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- 1-(4-(3,4-Dimethoxyphenyl)-2,5-dimethylfuran-3-yl)ethanone (CAS 88484-90-6)
- 1,2-Bis(4-methoxyphenoxy)ethane (CAS 61165-99-9)
- 2-Chloro-1-(4-iodobutoxy)-4-methoxybenzene (CAS 73523-71-4)
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- 5-(1-Isopropyl-1H-benzo[d]imidazol-2-yl)pentan-1-amine dihydrochloride (CAS 1245570-02-8)
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- 4-Bromo-2-(difluoromethoxy)-6-methylpyridine (CAS 1227184-58-8)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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