rel-(3aR,6aS)-2-Phenyltetrahydrothieno[3,4-d][1,3,2]dioxaborole CAS 62729-30-0
| CAS No. | 62729-30-0 |
| Molecular Formula | C10H11BO2S |
| Molecular Weight | 206.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rel-(3aR,6aS)-2-Phenyltetrahydrothieno[3,4-d][1,3,2]dioxaborole (CAS 62729-30-0), molecular formula C10H11BO2S and molecular weight 206.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, rel-(3aR,6aS)-2-Phenyltetrahydrothieno[3,4-d][1,3,2]dioxaborole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H11BO2S |
| Molecular Weight | 206.07 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Sulfur Atoms | 1 |
Recommended Standards
- Pyridine, 2,6-dichloro-4-(1-methoxyethyl)- (CAS 2757008-61-8)
- Avanafil Impurity 110 (CAS 1368440-33-8)
- N1-(3,5-Dichloropyridin-2-yl)ethane-1,2-diamine (CAS 253309-39-6)
- Avanafil Impurity 133 (CAS 1508194-63-5)
- (2-Fluorophenyl)(4-methylpiperidin-1-yl)methanone (CAS 346719-56-0)
- 3-methoxy-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (CAS 1204475-72-8)
- 9-Acetyl apoquinidine methyl ether (CAS 139239-49-9)
- 2,5-Difluorobenzyl Bromide (CAS 85117-99-3)
- 6-Bromo-5-(difluoromethyl)-3-fluoropicolinaldehyde (CAS 1805396-91-1)
- 4-(3-Phenyl-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one (CAS 1713590-31-8)
- 7-fluoro-1,2-dimethyl-1H-1,3-benzodiazole (CAS 1004618-80-7)
- 1-(4-Bromophenoxy)-2-methylbenzene (CAS 92022-43-0)
- 5-Bromo-6-chloro-2-nitropyridin-3-ol (CAS 1131041-71-8)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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