Tesmelefine-d4 hydrochloride CAS 1228786-71-7
| CAS No. | 1228786-71-7 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Tesmelefine-d4 hydrochloride (CAS 1228786-71-7), molecular formula C19H21D4NOHCl and molecular weight 323.90 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H21D4NOHCl, Tesmelefine-d4 hydrochloride contains deuterium isotope labeling, a steroid 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 323.90 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C19H21D4NO HCl |
| Molecular Weight | 323.90 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
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- N-{(E)-[2-(Diethylamino)-1,3-thiazol-5-yl]methylidene}isonicotinohydrazide (CAS 477855-20-2)
- 5-(2,5-Dimethoxyphenyl)-1,2,4-triazin-3-amine (CAS 1094296-84-0)
- [2-(But-2-ynyloxy)pyridin-4-yl]methylamine (CAS 1936421-86-1)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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