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Pharmaceutical ingredients

Lidocaine vs benzocaine

Lidocaine (C14H22N2O, CAS 137-58-6) and benzocaine (C9H11NO2, CAS 94-09-7) are both listed under central nervous system drugs.

Lidocaine has a molar mass of 234.34 g/mol, benzocaine 165.19 g/mol.

Measured boiling points are 180 to 182 for lidocaine and 310 °C for benzocaine.

Lidocaine carries the GHS signal word Warning, benzocaine Danger.

On CompoundList, 178 suppliers list lidocaine and 186 suppliers list benzocaine.

Data last updated 7 October 2026

Lidocaine and benzocaine compared side by side
Lidocaine chemical structure, C14H22N2O, CAS 137-58-6
Lidocaine
Benzocaine chemical structure, C9H11NO2, CAS 94-09-7
Benzocaine
Identity
Name in our databaseLidocaineBenzocaine
CAS number137-58-694-09-7
Molecular formulaC14H22N2OC9H11NO2
Molar mass234.34 g/mol165.19 g/mol
IUPAC name2-(diethylamino)-N-(2,6-dimethylphenyl)acetamideethyl 4-aminobenzoate
EC number205-302-8202-303-5
Physical properties
AppearanceNeedles from benzene or alcoholRhombohedra from ether
Melting point68 °C92 °C
Boiling point180 to 182310 °C
SolubilityIn water, 410 mg/L at 30 °CIn water, 1,310 mg/L at 25 °C
LogP (octanol/water)Computed from the structure2.581.45
Safety (GHS)
Signal wordWarningDanger
Pictograms
GHS07: Harmful or irritant
GHS07: Harmful or irritant
GHS08: Serious health hazard
GHS09: Hazardous to the environment
Hazard statements
  • H302 Harmful if swallowed.
  • H317 May cause an allergic skin reaction.
  • H370 Causes damage to organs.
  • H411 Toxic to aquatic life with long lasting effects.
Uses and classification
Uses and functions
  • Cardiovascular drugs
  • CNS agents
  • Anaesthetic
  • Analgesic
  • Anti-arrhythmia drug
  • Anti-inflammatory agent
  • CNS agents
  • UV filters
  • UV stabilizers
  • Aetiopathogenetic role
  • Allergen
  • Anaesthetic
CategoryPharmaceuticals and APIs › Central nervous system drugsPharmaceuticals and APIs › Central nervous system drugs
HS code292429Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other292249Amino-acids, other than those containing more than one kind of oxygen function, and…
Market on CompoundList
Suppliers178 suppliers186 suppliers
Supplier countries29 countries, most in United States, India, China28 countries, most in China, United States, India
Price rangeOnly prices set by suppliers who manage their own profilePrice on requestPrice on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Lidocaine
Benzocaine

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