Epinastine-13C-d3 HBr CAS 127786-29-2
| CAS No. | 127786-29-2 |
| Molecular Formula | C16H15N3 |
| 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 330.23 g/mol gives Epinastine-13C-d3 HBr distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Epinastine-13C-d3 HBr (CAS 127786-29-2) is a high-purity analytical reference standard with the molecular formula C16H15N3HBr and a molecular weight of 330.23 g/mol.
The molecular framework of Epinastine-13C-d3 HBr (C16H15N3HBr) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
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 | C16H15N3 HBr |
| Molecular Weight | 330.23 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Epinastine Standards
- Epinastine Impurity 24 (CAS 1110929-19-5)
- Epinastine Impurity 53 (CAS 114-39-6)
- Epinastine Related Compound A HCl (CAS 1159604-26-8)
- Epinastine Impurity 6 (CAS 1211-06-9)
- Epinastine Impurity 3 (CAS 1216548-20-7)
- Epinastine EP Impurity B (CAS 1217052-16-8)
- Epinastine Impurity 22 (CAS 124847-00-3)
- Epinastine Impurity 44 Fumarate (CAS 127785-96-0)
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