Cefdinir Impurity 92 CAS 110198-95-3
| CAS No. | 110198-95-3 |
| Molecular Formula | C16H17ClN2O5S |
| Molecular Weight | 384.83 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 Cefdinir Impurity 92.
CATO supplies Cefdinir Impurity 92 (CAS 110198-95-3), a pharmacopoeial impurity reference standard (molecular formula C16H17ClN2O5S, MW 384.83 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefdinir Impurity 92 (C16H17ClN2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Cefdinir Impurity 92 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 | C16H17ClN2O5S |
| Molecular Weight | 384.83 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefdinir Standards
Recommended Standards
- 2-Chloro-N-(2-{5-[(3,4-dimethoxyphenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl}ethyl)acetamide (CAS 571157-67-0)
- (E)-1-[2-(4-Chlorophenyl)-4-methyl-1,3-thiazol-5-yl]-3-(2-nitrophenyl)-2-propen-1-one (CAS 1211932-77-2)
- 4-(4-Chloro-2-fluorobenzoyl)-8-propyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-79-0)
- 3-((4-(2-Chlorophenyl)piperazin-1-yl)sulfonyl)-1H-pyrazole-4-carbohydrazide (CAS 1370592-49-6)
- Cefminox impurity 54 (CAS CATO-C4X-192654)
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- Axitinib Impurity 77 (CAS CATO-C4X-107177)
- 1-[3-(chloromethyl)-4-methoxyphenyl]ethan-1-one (CAS 62581-82-2)
- 4-((Diethylamino)methyl)-7-methoxy-2H-chromen-2-one (CAS 152584-35-5)
- 1-(Pyridin-2-yl)piperidine-4-carboxylic acid (CAS 685827-70-7)
- 1,3-dimethyl-1H,4H,5H,6H-7$l^{6},1,2,4-pyrazolo[3,4-b][1,4]thiazine-7,7-dione (CAS 1375244-33-9)
- 1-(4-Chlorobenzyl)-2-(trifluoromethyl)-1H-benzo[d]imidazole (CAS 321980-62-5)
- 9-Benzyl-6,9-diazaspiro[4.5]Decane (CAS 1248907-99-4)
- Acetyl Hexapeptide-38 (CAS 1400634-44-7)
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