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carboxyl

n. 羧基

羧基

WordNet (r) 3.0 (2006) (WordNet)

carboxyl
adj 1: relating to or containing the carboxyl group or carboxyl
radical [synonym: {carboxyl}, {carboxylic}]
n 1: the univalent radical -COOH; present in and characteristic
of organic acids [synonym: {carboxyl}, {carboxyl group}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Oxalyl \Ox"a*lyl\, n. [Oxalic -yl.] (Chem.)
(a) A hydrocarbon radical ({C2O2}) regarded as a residue of
oxalic acid and occurring in derivatives of it.
(b) An old name for {carbonyl}.
(c) An old name for {carboxyl}.
[1913 Webster]

Carboxyl \Car*box"yl\ (k[aum]r*b[o^]ks"[i^]l), n. [Carbon
oxygen -yl.] (Chem.)
The complex radical, {CO.OH}, regarded as the essential and
characteristic constituent which all oxygen acids of carbon
(as formic, acetic, benzoic acids, etc.) have in common; --
called also {oxatyl}.
[1913 Webster]

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Carboxylic acid - Wikipedia
In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group (−C(=O)−OH) [1] attached to an R-group The general formula of a carboxylic acid is often written as R−COOH or R−CO 2 H, sometimes as R−C(O)OH with R referring to an organyl group (e g , alkyl, alkenyl, aryl), or hydrogen, or other groups
Difference Between Carbonyl and Carboxyl | Definition, Structure . . .
The main difference between carbonyl and carboxyl group is that carbonyl group consist of a carbon atom double bonded to an oxygen atom whereas carboxyl group consists of a carbonyl group and a hydroxyl group bonded to each other via the carbon atom of the carbonyl group

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