5,8-Dimethyl-2,3-dihydrobenzo[b][1,4]dioxine CAS 88631-82-7
| CAS No. | 88631-82-7 |
| Molecular Formula | C10H12O2 |
| Molecular Weight | 164.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,8-Dimethyl-2,3-dihydrobenzo[b][1,4]dioxine.
5,8-Dimethyl-2,3-dihydrobenzo[b][1,4]dioxine (CAS 88631-82-7) is a high-purity analytical reference standard with the molecular formula C10H12O2 and a molecular weight of 164.20 g/mol.
Structurally, 5,8-Dimethyl-2,3-dihydrobenzo[b][1,4]dioxine (C10H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 164.20 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.
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 | C10H12O2 |
| Molecular Weight | 164.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
Related Dimethyl Standards
- 2,2-Dimethyl-2,3-dihydrobenzofuran-3-ol (CAS 103324-02-3)
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- 3,6-Dimethyl-2,3-dihydrobenzofuran-5-ol (CAS 111950-57-3)
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Recommended Standards
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- Methyl 6-(4-(4,8-dimethylquinolin-2-yl)piperazin-1-yl)nicotinate (CAS 866136-67-6)
- (S,S)-TADDOL-PNMe2 (CAS 582300-09-2)
- Atomoxetine EP impurity B (CAS 105314-53-2)
- 5-Cyano-2-methyl-benzenesulfonylchloride (CAS 372198-49-7)
- N-(3,7-Difluoro-9H-fluoren-2-yl)acetamide (CAS 2823-83-8)
- 1-(2,2-Difluoroethyl)-5-methyl-1h-pyrazole (CAS 1170936-27-2)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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