(E)-Doxepin Hydrochloride CAS 4698-39-9
| CAS No. | 4698-39-9 |
| Molecular Formula | C19H21NO |
| Molecular Weight | N/A |
| 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 (E)-Doxepin Hydrochloride.
(E)-Doxepin Hydrochloride (CAS 4698-39-9) is a high-purity analytical reference standard with the molecular formula C19H21NOHCl and a molecular weight of 315.84 g/mol.
(E)-Doxepin Hydrochloride (C19H21NOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures (E)-Doxepin Hydrochloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H21NO HCl |
| Molecular Weight | 315.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- Doxepin EP Imp C(Desmethyldoxepine)(USP (CAS 1225-56-5)
- Doxepin Hydrochloride (CAS 1229-29-4)
- Doxepin Impurity 2 (CAS 131523-93-8)
- Doxepin-D (CAS 138387-16-3)
- Doxepin Impurity 7 (CAS 21324-99-2)
- Doxepin impurity 17 (CAS 22684-91-9)
- Doxepin EP Impurity D HCl ((Z)-Doxepin HCl) (CAS 25127-31-5)
- Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) (CAS 2887-91-4)
Recommended Standards
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- 2-Amino-2-(o-tolyl)propan-1-ol (CAS 1179064-39-1)
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- 4-((1H-pyrrol-1-yl)methyl)aniline (CAS 107484-33-3)
- 2-Amino-3-(3-ethoxy-2-hydroxyphenyl)propanoic acid (CAS 1343260-68-3)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com