carbamate
Definition
Noun: 1. A salt or ester of carbamic acid: A chemical compound formed when carbamic acid reacts with a base (forming a salt) or an alcohol (forming an ester). Carbamates are a significant class of compounds in organic chemistry, pharmacology, and agriculture.
Usage Examples
- Noun:
- The laboratory synthesized a new carbamate to test its insecticidal properties.
- Some carbamate compounds are used in medicine as muscle relaxants.
- The study focused on the environmental degradation of the carbamate pesticide.
Advanced Usage
- In compound terms: The term "carbamate" frequently appears as part of more specific chemical names, indicating its role as a functional group.
- The "urethane" group is technically an ethyl carbamate.
- "Neostigmine" is a carbamate-based cholinesterase inhibitor used to treat myasthenia gravis.
Variants and Related Words
- Carbamic acid (n): The unstable parent acid, H₂NCOOH, from which carbamates are derived.
- Carbamoyl (adj): Relating to the H₂NCO– group, as in "carbamoyl phosphate."
- Polycarbamate (n): A polymer containing multiple carbamate linkages.
Synonyms
- Urethane (n): Specifically refers to ethyl carbamate, though often used informally for polyurethane polymers. Not a perfect synonym for all carbamates.
- Aminoformate (n): A systematic but less common name.
Related Phrases and Terms
- Carbamate insecticide (n): A class of pesticides (e.g., carbaryl, aldicarb) that work by inhibiting the enzyme acetylcholinesterase.
- Carbamate ester (n): A carbamate where the ionic hydrogen is replaced by an organic group (R–O–CO–NH₂ or R–O–CO–NHR').
- Carbamate salt (n): An ionic compound containing a carbamate anion (H₂NCOO⁻ or RNHCOO⁻) and a metal or ammonium cation.
Noun
-
a salt (or ester) of carbamic acid
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