Etizolam Impurity 24 CAS CATO-C4X-350924
| CAS No. | CATO-C4X-350924 |
| Molecular Formula | C17H15ClN4OS |
| Molecular Weight | 358.85 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Etizolam Impurity 24.
Etizolam Impurity 24 (CAS CATO-C4X-350924) is a certified pharmaceutical impurity reference standard with the molecular formula C17H15ClN4OS and a molecular weight of 358.85 g/mol.
Etizolam Impurity 24 (C17H15ClN4OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C17H15ClN4OS |
| Molecular Weight | 358.85 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Etizolam Standards
- Etizolam Impurity 25 (CAS CATO-C4X-350925)
- Etizolam Impurity 28 (CAS CATO-C4X-350928)
- Etizolam Impurity 26 (CAS CATO-C4X-350926)
- Etizolam Impurity 23 (CAS CATO-C4X-350923)
- Etizolam Impurity 30 (CAS CATO-C4X-350930)
- Etizolam Impurity 33 (CAS CATO-C4X-350933)
- Etizolam-d3 (methyl-d3) (CAS 1781417-41-1)
- Etizolam Impurity 29 (CAS CATO-C4X-350929)
Recommended Standards
- N-(3-Chlorophenyl)-2-((3-(m-tolyl)-1H-1,2,4-triazol-5-yl)thio)acetamide (CAS 332159-19-0)
- 9-Hydroxyetizolam (CAS 52170-72-6)
- 6-Chloro-2-(3-(2,5-dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one (CAS 383148-61-6)
- 4-(Chloromethyl)-1-trityl-1H-imidazole (CAS 103057-10-9)
- Mifepristone Impurity 16 (CAS CATO-C4X-121616)
- Mosapride Impurity 66 (CAS CATO-C4X-104466)
- Morinidazole Impurity 17 (CAS CATO-C4X-219617)
- (S)-2-(1-aminoethyl)-4-methoxyphenol (CAS 180683-46-9)
- 1,3-dimethylcyclopentane-1-carboxylic acid (CAS 860379-06-2)
- (5-Fluorobenzofuran-2-yl)boronic acid (CAS 473416-33-0)
- 3,3'-(1,3,4-Oxadiazole-2,5-diyl)dibenzaldehyde (CAS 131491-73-1)
- 3-(2-Bromoethyl)-2,3-dihydro-1,3-benzoxazol-2-one (CAS 27170-93-0)
- 1-(Tert-butoxy)-3-methylbenzene (CAS 15359-97-4)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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