Lidocaine Impurity 72 CAS CATO-C4X-167972
| CAS No. | CATO-C4X-167972 |
| Molecular Formula | C20H34N4O2 |
| Molecular Weight | 362.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Lidocaine Impurity 72 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.
CATO supplies Lidocaine Impurity 72 (CAS CATO-C4X-167972), a pharmacopoeial impurity reference standard (molecular formula C20H34N4O2, MW 362.51 g/mol) used for the identification and quantification of trace impurities in APIs.
Lidocaine Impurity 72 (C20H34N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H34N4O2 |
| Molecular Weight | 362.51 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Lidocaine Standards
- Lidocaine Impurity 100 (CAS CATO-C4X-1679100)
- Lidocaine Impurity N4 (CAS 332903-68-1)
- Lidocaine Impurity 74 (CAS CATO-C4X-167974)
- Lidocaine Impurity 92 (CAS CATO-C4X-167992)
- Lidocaine impurity 58 (CAS CATO-C4X-167958)
- Lidocaine EP Impurity E (CAS 745798-07-6)
- Lidocaine Impurity 31 (CAS 70336-49-1)
- Lidocaine Impurity 81 (CAS CATO-C4X-167981)
Recommended Standards
- N-(5-Benzylidene-4-oxo-2-thioxothiazolidin-3-yl)octanamide (CAS 303055-98-3)
- Xylometazoline Impurity 10 (CAS CATO-C4X-178210)
- n-(1-Benzylpiperidin-4-yl)-n-(1-phenylcyclopentyl)formamide (CAS 440087-77-4)
- N-Desmethyl Tamoxifen-d5 (CAS 164365-16-6)
- Avanafil Impurity 16 (CAS CATO-C4X-111816)
- Calcitriol Impurity 6 (CAS CATO-C4X-15106)
- Cefazolin EP Impurity G (CAS 1172998-53-6)
- PAR-2 (6-1) amide (mouse, rat) (CAS 245329-01-5)
- 3-(1-Benzylpyrrolidin-2-yl)-6-chloro-2-methylpyridine (CAS 1352534-83-8)
- 3-Methoxy-3-phenyloxetane (CAS 1305208-46-1)
- 7-amino-1,2,3,4-tetrahydroquinazoline-2,4-dione (CAS 59674-85-0)
- 3-Methyl-2-(trimethylsilyl)pyridine (CAS 13737-07-0)
- Methyl 2-((tert-butoxycarbonyl)amino)-4-cyclobutylbutanoate (CAS 2279727-86-3)
- Peptide 46 (H-4054.0500) (CAS 192122-40-0)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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