Chemical function
- Name
- Carboxylate group
- Explicit name
- C(=O)O- double-simple bond group
- Secondary name
- COO- double bond group
- Comments
- Functional group R−C(=O)−O−
- Formula
- R−C(=O)−O−
- Chemical formula
- RCOO-
- Structural formula
- [R][C](=O)[O-]
- Charge
- -1
- Unpaired electrons
- 0

- Isotope mixture type
- terrestrial abundance