Etizolam Impurity 25 CAS CATO-C4X-350925
| CAS No. | CATO-C4X-350925 |
| Molecular Formula | C17H15ClN4OS |
| Molecular Weight | 358.85 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Etizolam Impurity 25 is closely related to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Etizolam Impurity 25 (CAS CATO-C4X-350925) is a certified pharmaceutical impurity reference standard with the molecular formula C17H15ClN4OS and a molecular weight of 358.85 g/mol.
The molecular framework of Etizolam Impurity 25 (C17H15ClN4OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures Etizolam Impurity 25 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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 24 (CAS CATO-C4X-350924)
- 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)
- 4-(Chloromethyl)-1-trityl-1H-imidazole (CAS 103057-10-9)
- 9-Hydroxyetizolam (CAS 52170-72-6)
- 4-[4-(Dimethylamino)-1-(4’-chlorophenyl)-1-hydroxybutyl]-3-(hydroxymethyl)-benzonitrile (CAS 1076200-05-9)
- Bempedoic Acid Impurity 26 (CAS CATO-C4X-218926)
- Chlorhexidine Impurity 34 HCl (CAS CATO-C4X-225634)
- Paliperidone Impurity 23 (CAS CATO-C4X-1724123)
- 4-(1-Cyano-1-methylethyl)-2-fluorophenylboronic acid (CAS 1793003-65-2)
- 6-Fluoro-3-(piperidin-3-yl)-1H-indole (CAS 1203799-36-3)
- (3R,4R)-2-Methylpyrrolidine-3,4-diol (hydrochloride) (CAS 2923469-25-2)
- 8-(Furan-2-carbonyl)-3-propyl-1,3,8-triazaspiro[4.5]decane-2,4-dione (CAS 1021251-37-5)
- 6-Chloro-2-cyclopropyl-5-methylpyrimidin-4-amine (CAS 852061-78-0)
- 6-Hydroxy Bentazon (CAS 60374-42-7)
- [y-Glu15]-Semaglutide Impurity 134 (CAS CATO-C4X-2226134)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com