Epinastine Impurity 35 CAS CATO-C4X-184035
| CAS No. | CATO-C4X-184035 |
| Molecular Formula | C16H17N3S |
| Molecular Weight | 283.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Epinastine Impurity 35 is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Epinastine Impurity 35 (CAS CATO-C4X-184035) is a certified pharmaceutical impurity reference standard with the molecular formula C16H17N3S and a molecular weight of 283.39 g/mol.
Structurally, Epinastine Impurity 35 (C16H17N3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 283.39 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Epinastine Impurity 35 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H17N3S |
| Molecular Weight | 283.39 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Epinastine Standards
- Epinastine Impurity 25 (CAS CATO-C4X-184025)
- Epinastine Impurity 8 (CAS CATO-C4X-18408)
- Epinastine Impurity 11 (CAS 2702358-41-4)
- Epinastine Impurity 20 (CAS CATO-C4X-184020)
- Epinastine Impurity 46 (CAS CATO-C4X-184046)
- Epinastine Impurity 17 (CAS 23207-75-2)
- Epinastine Impurity 18 (CAS CATO-C4X-184018)
- Epinastine Impurity 9 (CAS 141342-71-4)
Recommended Standards
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- Choline impurity 10 (CAS CATO-C4X-158710)
- Ilaprazole Impurity 53 (CAS CATO-C4X-113053)
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- (5-(2-Chlorophenyl)furan-2-yl)(pyrrolidin-1-yl)methanone (CAS 853331-32-5)
- 4-[(2,3-Dimethylphenoxy)methyl]piperidinehydrochloride (CAS 1219960-69-6)
- 1-(2,6-dichlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1154101-06-0)
- 3-Chloro-1H-1,2,4-triazol-5-amine hydrochloride (CAS 858000-47-2)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
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