Etizolam Impurity 14 CAS 40054-57-7
| CAS No. | 40054-57-7 |
| Molecular Formula | C15H14N2S2 |
| Molecular Weight | 286.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Etizolam Impurity 14 (C15H14N2S2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Etizolam Impurity 14 (CAS 40054-57-7) is a certified pharmaceutical impurity reference standard with the molecular formula C15H14N2S2 and a molecular weight of 286.42 g/mol.
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), Etizolam Impurity 14 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 | C15H14N2S2 |
| Molecular Weight | 286.42 g/mol |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Etizolam Standards
- Etizolam Impurity 12 (CAS 67727-22-4)
- Etizolam Impurity 4 (CAS 110753-14-5)
- Etizolam Impurity 7 (CAS 91663-72-8)
- Etizolam Impurity 5 (CAS CATO-C4X-35095)
- Etizolam Impurity 15 (CAS 51687-58-2)
- Etizolam Impurity 20 (CAS 50508-61-7)
- Etizolam Impurity 8 (CAS 54123-29-4)
- Etizolam Impurity 27 (CAS CATO-C4X-350927)
Recommended Standards
- Dotinurad Impurity 56 (CAS CATO-C4X-249456)
- N-benzyl-5-(tert-butylthio)-4-methylpyridin-2-amine (CAS 1355179-07-5)
- Dotinurad Impurity 25 (CAS 2142685-21-8)
- Tert-butyl 4-(aminomethyl)-1-thia-8-azaspiro[4.5]Decane-8-carboxylate (CAS 1373028-66-0)
- Pentoxifylline Impurity 19 (CAS 6135-54-2)
- Cefprozil Impurity 34 (CAS CATO-C4X-149234)
- Topiroxostat Impurity 10 (CAS 2044702-36-3)
- 2-Fluoro-3-(4-iodo-5-methyl-1H-1,2,3-triazol-1-yl)pyridine (CAS 873551-07-6)
- 3-Cyclopropoxy-5-methoxypyridin-4-amine (CAS 1243409-45-1)
- 5-Amino-2-(3-fluorophenyl)oxazole-4-carboxamide (CAS 1217863-04-1)
- ethyl 3-bromo-4-fluoro-2-nitrobenzoate (CAS 1807025-98-4)
- Sulfinpyrazone (CAS 57-96-5)
- (2R,4S)-3-Benzoyl-4-ethoxylcarbonylmethyl-4-methyl-5-oxazolidinone (CAS 113806-36-3)
- Insulin Lispro (CAS 133107-64-9)
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