4-Epianhydrotetracycline Hydrochloride CAS 4465-65-0
| CAS No. | 4465-65-0 |
| Molecular Formula | C22H22N2O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 462.88 g/mol gives 4-Epianhydrotetracycline Hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Epianhydrotetracycline Hydrochloride (CAS 4465-65-0) is a high-purity analytical reference standard with the molecular formula C22H22N2O7HCl and a molecular weight of 462.88 g/mol.
Based on its molecular formula C22H22N2O7HCl, 4-Epianhydrotetracycline Hydrochloride contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 462.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H22N2O7 HCl |
| Molecular Weight | 462.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >80% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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- 3,5-dichloro-4-methyl-pyridazine (CAS 1351249-67-6)
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- 3-Isopropylisoxazol-5(2H)-one (CAS 29871-84-9)
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