Lorazepam Impurity 6 CAS 2894-71-5
| CAS No. | 2894-71-5 |
| Molecular Formula | C15H10Cl2N2S |
| Molecular Weight | 321.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Lorazepam Impurity 6 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.
Lorazepam Impurity 6 (CAS 2894-71-5) is a high-purity analytical reference standard with the molecular formula C15H10Cl2N2S and a molecular weight of 321.22 g/mol.
Based on its molecular formula C15H10Cl2N2S, Lorazepam Impurity 6 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 321.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C15H10Cl2N2S |
| Molecular Weight | 321.22 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Lorazepam Standards
Recommended Standards
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- N-Benzyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanimine (CAS 2097555-05-8)
- 9-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl)-9H-carbazole (CAS 608534-41-4)
- rel-(2R,3S,Z)-6-Fluoro-3-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hex-5-ene-2-sulfonamide (CAS 2580246-26-8)
- 4-((3-Chloropyridazin-4-yl)oxy)aniline (CAS 1415050-22-4)
- 2-(Dibromomethyl)-3-fluorobenzonitrile (CAS 1823903-03-2)
- (S)-1-(2,4-dimethylphenyl)butan-1-amine (CAS 1212807-77-6)
- 6-(Pyrrolidin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 338748-49-5)
- 5,6-Dimethoxypicolinaldehyde (CAS 106331-68-4)
- Isopropyl phosphite (CAS 691-96-3)
- 4-[(5-{[(2,4-Difluorophenyl)amino]carbonyl}-1,3,4-thiadiazol-2-yl)methoxy]benzoic acid (CAS 1142210-22-7)
- 1,3-Dioxo-1,3-dihydroisobenzofuran-4-yl benzoate (CAS 138975-98-1)
- 4-Phenylpiperidine-2,6-dione (CAS 14149-31-6)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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