Zopiclone Impurity 12 CAS CATO-C4X-123812
| CAS No. | CATO-C4X-123812 |
| Molecular Formula | C28H20Cl2N10O6 |
| Molecular Weight | 663.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Zopiclone Impurity 12 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.
Zopiclone Impurity 12 (CAS CATO-C4X-123812) is a certified pharmaceutical impurity reference standard with the molecular formula C28H20Cl2N10O6 and a molecular weight of 663.43 g/mol.
Structurally, Zopiclone Impurity 12 (C28H20Cl2N10O6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 23.0, corresponding to approximately 23 ring(s) or double-bond equivalent(s). With a molecular weight of 663.43 g/mol, it falls into the high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C28H20Cl2N10O6 |
| Molecular Weight | 663.43 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 10 |
Related Zopiclone Standards
- Zopiclone Impurity 11 (CAS CATO-C4X-123811)
- Zopiclone Impurity 3 (CAS 1076199-62-6)
- Zopiclone Impurity 13 (CAS CATO-C4X-123813)
- Zopiclone EP Impurity A (CAS 43200-96-0)
- Zopiclone-d8 (CAS 1215518-83-4)
- Zopiclone-D4 (CAS 1435933-78-0)
- Zopiclone Impurity 10 (CAS CATO-C4X-123810)
- Zopiclone Impurity 20 (CAS CATO-C4X-123820)
Recommended Standards
- α-Nicotinamide adenine dinucleotide (CAS 7298-93-3)
- Beta-Diphosphopyridine Nucleotide (CAS 53-84-9)
- 1-((2S,3S,4S,5R)-5-((((((((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)oxidophosphoryl)oxy)methyl)-3,4-dihydroxytetrahydrofuran-2-yl)-3-carbamoylpyridin-1-ium (CAS 108646-17-9)
- 2-[6-(Bis(Carboxymethyl)Amino)-5-[2-[6-(Bis(Carboxymethyl)Amino)-2,3-Difluorophenoxy]Ethoxy]-2-Benzofuran-1-Yl]-1,3-Oxazole-5-Carboxylic Acid (CAS 156638-57-2)
- Econazole impurity 21 (CAS 293759-26-9)
- Azacitidine Impurity 27 (CAS 65886-71-7)
- Piperacillin impurity 106 (CAS CATO-C4X-1732106)
- 2,6-Difluoro-3-methylbenzoyl chloride (CAS 261763-39-7)
- Methyl 2-({[(tert-butoxy)carbonyl]amino}methyl)-1,3-oxazole-4-carboxylate (CAS 182120-89-4)
- 3-Chloro-N,N-dimethylpropanamide (CAS 17268-49-4)
- tert-Butyl (1,3-dihydroxy-3-methylbutan-2-yl)carbamate (CAS 1353743-61-9)
- 2-(Adamantan-1-yl)-2-aminoacetic acid hydrochloride (CAS 16091-96-6)
- (S)-2-(8-(Tert-butoxycarbonyl)-1-oxo-2,8-diazaspiro[4.5]decan-2-yl)-3-methylbutanoic acid (CAS 2641826-14-2)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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