3,4-Dihydro-2h-1,5-benzodioxepine-7,8-diamine CAS 81864-63-3
| CAS No. | 81864-63-3 |
| Molecular Formula | C9H12N2O2 |
| Molecular Weight | 180.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,4-Dihydro-2h-1,5-benzodioxepine-7,8-diamine is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,4-Dihydro-2h-1,5-benzodioxepine-7,8-diamine (CAS 81864-63-3), molecular formula C9H12N2O2 and molecular weight 180.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,4-Dihydro-2h-1,5-benzodioxepine-7,8-diamine (C9H12N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H12N2O2 |
| Molecular Weight | 180.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 2 |
Related Dihydro Standards
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Recommended Standards
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- Octahydrocyclopenta[c]pyrrol-4-ol (CAS 1212822-72-4)
- Ilaprazole Impurity 132 (CAS CATO-C4X-1130132)
- Trospium Impurity 13 (CAS CATO-C4X-203813)
- N-Cyclobutyl-3-pyridinamine (CAS 1250891-52-1)
- N-Boc-2-bromo-1-propanamine (CAS 121102-88-3)
- 3-(bromomethyl)-2,5-dichlorothiophene (CAS 63826-68-6)
- (1H-Indol-5-yl)(3-(3-(pyrimidin-2-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone (CAS 1327574-58-2)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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