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Academy

Lidocaine vs Lidocaine HCl: Chemical Comparison and Laboratory Relevance

1. Molecular identity and CAS numbers Lidocaine, known chemically as 2-(diethylamino)-N-(2,6-dimethylphenyl)acetamide, is a base form with the CAS number 137-58-6.Its hydrochloride salt, Lidocaine HCl (CAS 73-78-9), is the acid-stabilised version, formed

9 October 2025

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