rel-(3aR,6aS)-Tetrahydro-1H-spiro[pentalene-2,2'-[1,3]dioxolan]-5(3H)-one CAS 51716-62-2
| CAS No. | 51716-62-2 |
| Molecular Formula | C10H14O3 |
| Molecular Weight | 182.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
rel-(3aR,6aS)-Tetrahydro-1H-spiro[pentalene-2,2'-[1,3]dioxolan]-5(3H)-one (CAS 51716-62-2) is a high-purity analytical reference standard with the molecular formula C10H14O3 and a molecular weight of 182.22 g/mol.
Structurally, rel-(3aR,6aS)-Tetrahydro-1H-spiro[pentalene-2,2'-[1,3]dioxolan]-5(3H)-one (C10H14O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 182.22 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H14O3 |
| Molecular Weight | 182.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1971 |
Recommended Standards
- rac-[(2R,3S)-2-(1-methyl-1H-imidazol-2-yl)oxolan-3-yl]methanol (CAS 2031242-52-9)
- Spiro[bicyclo[3.2.1]octane-8,2'-[1,3]dioxolan]-3-one (CAS 70260-47-8)
- Pyrrolo[1,2-a]quinolin-6-amine (CAS 865658-88-4)
- Tert-butyl ((1R,2R)-2-cyanocyclopropyl)carbamate (CAS 2165955-87-1)
- 6-Chloro-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine (CAS 1210129-64-8)
- 2-Heptacosanone (CAS 7796-19-2)
- 4-Hydrazinyl-5-(4-methylphenyl)thieno[2,3-d]pyrimidine (CAS 374611-25-3)
- (4-Aminopyridin-2-yl)(4-methylpiperazin-1-yl)methanone (CAS 1180131-80-9)
- Methyl 5-(benzyloxy)-2-bromobenzoate (CAS 431052-32-3)
- 2-Amino-4-((((2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl)(methyl)amino)butanoic Acid (CAS 129828-73-5)
- (4-Butoxy-3-methylphenyl)(methyl)sulfane (CAS 1379322-88-9)
- 3,3'-((2-(1-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3-oxo-7,10,13,16-tetraoxa-4-azanonadecan-19-amido)-2-(15-oxo-2,5,8,11,18-pentaoxa-14-azanonadecan-19-yl)propane-1,3-diyl)bis(oxy))bis(N-(2,5,8,11-tetraoxatridecan-13-yl)propanamide) (CAS 1333154-72-5)
- 3-(Tert-butyl)-1-(quinolin-6-yl)-1H-pyrazol-5-amine (CAS 897373-62-5)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
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