6-amino-4H,5H,6H,7H,8H-thieno[3,2-b]azepin-5-one hydrochloride CAS 1443979-72-3
| CAS No. | 1443979-72-3 |
| Molecular Formula | C8H10N2OS |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-amino-4H,5H,6H,7H,8H-thieno[3,2-b]azepin-5-one hydrochloride (CAS 1443979-72-3) is a high-purity analytical reference standard with the molecular formula C8H10N2OSHCl and a molecular weight of 218.70 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 6-amino-4H,5H,6H,7H,8H-thieno[3,2-b]azepin-5-one hydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 218.70 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 | C8H10N2OS HCl |
| Molecular Weight | 218.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- N-(4-chlorophenyl)-4-(1-methyl-6-(methylamino)-3,5-dinitro-1,4-dihydropyridin-2-yl)piperazine-1-carboxamide (CAS 339020-75-6)
- N-Benzyl-4-(4-cyano-5-(pyrrolidin-1-yl)oxazol-2-yl)-N-methylbenzenesulfonamide (CAS 941250-15-3)
- 1,4,5,6,7,8-Hexahydrocyclohepta[c]pyrazole-3-carboxylic acid (CAS 856256-63-8)
- Benzyl (4-((2-hydroxyethyl)(methyl)amino)cyclohexyl)carbamate (CAS 1353975-59-3)
- 4-Bromo-3-(2-chlorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 1354830-42-4)
- 1-Bromo-3-isobutoxy-5-trifluoromethoxybenzene (CAS 1221793-64-1)
- (2-(Tert-butyl)pyrimidin-5-yl)methanamine (CAS 944899-70-1)
- N-[(8α,9R)-6'-Methoxycinchonan-9-yl]-N'-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)thiourea (CAS 1421852-79-0)
- N-(1-Cyanocyclopentyl)-2-((5-(o-tolylamino)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 863412-31-1)
- Peptide Impurity 05 (CAS 2322924-83-2)
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