Lidocaine Impurity 75 CAS CATO-C4X-167975
| CAS No. | CATO-C4X-167975 |
| Molecular Formula | C14H21ClN2O |
| Molecular Weight | 268.78 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 Lidocaine Impurity 75.
CATO supplies Lidocaine Impurity 75 (CAS CATO-C4X-167975), a pharmacopoeial impurity reference standard (molecular formula C14H21ClN2O, MW 268.78 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Lidocaine Impurity 75 (C14H21ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 268.78 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Lidocaine Impurity 75 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 | C14H21ClN2O |
| Molecular Weight | 268.78 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Lidocaine Standards
- Lidocaine Impurity 79 (CAS CATO-C4X-167979)
- Lidocaine-d10 N-Oxide (CAS 851528-10-4)
- Lidocaine Impurity 32 (CAS 294852-91-8)
- Lidocaine Impurity 57 (CAS 52662-13-2)
- Lidocaine Impurity 6 (CAS 64585-18-8)
- Lidocaine EP Impurity B (CAS 2903-45-9)
- Lidocaine Impurity 71 (CAS CATO-C4X-167971)
- Lidocaine Impurity 73 (CAS CATO-C4X-167973)
Recommended Standards
- Ibuprofen Impurity 98 (CAS CATO-C4X-108298)
- 6-Chloro-N-(2,2,6,6-tetramethylpiperidin-4-yl)pyridazin-3-amine (CAS 1211459-79-8)
- Ibuprofen Impurity 111 (CAS CATO-C4X-1082111)
- 4-(4-Chlorophenyl)-5-(prop-2-en-1-ylsulfanyl)-1,2,3-thiadiazole (CAS 338409-74-8)
- Urapidil Impurity 49 (CAS CATO-C4X-192449)
- Levodopa Impurity 20 (CAS 33043-37-7)
- Flunarizine impurity 50 (CAS CATO-C4X-135750)
- N-(4-(2-((4-phenoxyphenyl)amino)thiazol-4-yl)phenyl)acetamide (CAS 1024466-46-3)
- 7-Chloro-1H-indole-3-carboximidamide hydrochloride (CAS 1638761-09-7)
- 3'-Chloro-6-methyl-[1,1'-biphenyl]-3-amine (CAS 1208087-52-8)
- (2Z)-2-[(Thiophen-2-yl)methylidene]-1-azabicyclo[2.2.2]octan-3-ol (CAS 929256-69-9)
- 8,8-Dimethyl-8H-indolo[3,2,1-de]acridine (CAS 73183-76-3)
- 6-Chloro-N2,N2-dimethyl-1,3,5-triazine-2,4-diamine (CAS 32998-04-2)
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
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