| slovo | definícia |
-CO2H
(gcide) | carboxyl group \car*box"yl group`\ (k[aum]r*b[o^]ks"[i^]l
gr[=oo]p), n. (Chem.)
a monovalent organic radical (written -COOH, -CO2H or
-CO.OH) whose presence confers acidic properties on the
compound containing it; -- called also carboxylic group.
Monocarboxylic acids (such as acetic acid or butyric acid)
have one carboxyl group, dicarboxylic acids (such as oxalic
acid or malonic acid) have two, tricarboxylic acids (such as
citric acid) have three. It is weakly acidic, the pKa of
acetic acid being 4.75.
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-CO2H
(gcide) | carboxylic \car`box*yl"ic\ (k[aum]r`b[o^]ks*[i^]l"[i^]k), adj.
(Chem.)
of or pertaining to the carboxyl group; having a carboxyl
group (written -COOH, -CO2H or -CO.OH); as, carboxylic
acids are weakly acidic.
Syn: carboxyl.
[WordNet 1.5] |
| | podobné slovo | definícia |
C10H21CO2H
(gcide) | Undecylic \Un`de*cyl"ic\, a. (Chem.)
Related to, derived from, or containing, the undecyl radical;
specifically, designating that member of the fatty acids
which corresponds to undecane, and is obtained as a white
crystalline substance, C10H21.CO2H.
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C2H2CO2H2
(gcide) | Fumaric \Fu*mar"ic\, a. (Chem.)
Pertaining to, or derived from, fumitory ({Fumaria
officinalis}).
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Fumaric acid (Chem.), a widely occurring organic acid,
extracted from fumitory as a white crystallline substance,
C2H2(CO2H)2, and produced artificially in many ways, as
by the distillation of malic acid; boletic acid. It is
found also in the lichen, Iceland moss, and hence was also
called lichenic acid.
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C2H2OH2CO2H2
(gcide) | Tartaric \Tar*tar"ic\, a. (Chem.)
Of or pertaining to tartar; derived from, or resembling,
tartar.
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Tartaric acid. (a) An acid widely diffused throughout the
vegetable kingdom, as in grapes, mountain-ash berries,
etc., and obtained from tartar as a white crystalline
substance, C2H2(OH)2.(CO2H)2, having a strong pure acid
taste. It is used in medicine, in dyeing, calico printing,
photography, etc., and also as a substitute for lemon
juice. Called also dextro-tartaric acid.
(b) By extension, any one of the series of isomeric acids
(racemic acid, levotartaric acid, inactive tartaric acid)
of which tartaric acid proper is the type.
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C3H3CO2H
(gcide) | Tetrolic \Tet*rol"ic\, a. (Chem.)
Of, pertaining to, or designating, an acid, C3H3.CO2H, of
the acetylene series, homologous with propiolic acid,
obtained as a white crystalline substance.
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C3H4CO2H2
(gcide) | Citraconic \Cit`ra*con"ic\, a. [Citric + aconitic.]
Pertaining to, derived from, or having certain
characteristics of, citric and aconitic acids.
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Citraconic acid (Chem.), a white, crystalline, deliquescent
substance, C3H4(CO2H)2, obtained by distillation of
citric acid. It is a compound of the ethylene series.
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C3H4OHCO2H3
(gcide) | Citric \Cit"ric\, a. [Cf. F. citrique. See Citron.] (Chem.)
Of, pertaining to, or derived from, the citron or lemon; as,
citric acid.
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Citric acid (Chem.), an organic acid, C3H4OH.(CO2H)3,
extracted from lemons, currants, gooseberries, etc., as a
white crystalline substance, having a pleasant sour taste.
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C3H5CO2H
(gcide) | Crotonic \Cro*ton"ic\ (kr?-t?n"?k), a.
Of or pertaining to, or derived from, a plant of the genus
Croton, or from croton oil.
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Crotonic acid (Chem.), a white crystalline organic acid,
C3H5.CO2H, of the ethylene, or acrylic acid series. It
was so named because formerly supposed to exist in croton
oil. Also, any acid metameric with crotonic acid proper.
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Note: The acid characteristic of croton oil is tiglic or
tiglinic acid, a derivative of crotonic acid.
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C3H5CO2H3
(gcide) | Tricarballylic \Tri*car`bal*lyl"ic\, a. [Pref. tri- + carboxyl +
allyl + -ic.] (Chem.)
Of, pertaining to, or designating, a complex tribasic organic
acid, C3H5.(CO2H)3 occurring naturally in unripe beet
roots, and produced artificially from glycerin as a white
crystalline substance.
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C3H6OHCO2H
(gcide) | Oxybutyric \Ox`y*bu*tyr"ic\, a. [Oxy
(b) + butyric.] (Chem.) Hydroxybutyric; designating any one
of a group of metameric acids ((C3H6.OH).CO2H).
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C3H7C6H4CO2H
(gcide) | Cuminic \Cu*min"ic\ (k?-m?n"?k), a.
Pertaining to, or derived from, cumin, or from oil of
caraway; as, cuminic acid.
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Cuminic acid (Chem.), white crystalline substance,
C3H7.C6H4.CO2H, obtained from oil of caraway.
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C3H7CO2H
(gcide) | Butyric \Bu*tyr"ic\, a. (Chem.)
Pertaining to, or derived from, butter.
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Butyric acid, C3H7.CO2H, an acid found in butter; an
oily, limpid fluid, having the smell of rancid butter, and
an acrid taste, with a sweetish aftertaste, like that of
ether. There are two metameric butyric acids, called in
distinction the normal- and iso-butyric acid. The normal
butyric acid is the one common in rancid butter.
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C4H7CO2H
(gcide) | Tiglic \Tig"lic\, a. (Chem.)
Of, pertaining to, or designating, an acid, C4H7CO2H
(called also methyl crotonic acid), homologous with crotonic
acid, and obtained from croton oil (from Croton Tiglium) as
a white crystalline substance.
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C4H9CO2H
(gcide) | Valeric \Va*ler"ic\, a. (Chem.)
Valerianic; specifically, designating any one of three
metameric acids, of which the typical one (called also
inactive valeric acid), C4H9CO2H, is obtained from
valerian root and other sources, as a corrosive, mobile, oily
liquid, having a strong acid taste, and an odor of old
cheese.
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Active valeric acid, a metameric variety which turns the
plane of polarization to the right, although formed by the
oxidation of a levorotatory amyl alcohol.
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C5H10CO2H2
(gcide) | Pimelic \Pi*mel"ic\ (p[i^]*m[e^]l"[i^]k), a. [Gr. pimelh` fat.]
(Chem.)
(a) Pertaining to, or designating, a substance obtained from
certain fatty substances, and subsequently shown to be a
mixture of suberic and adipic acids.
(b) Designating the acid proper (C5H10(CO2H)2) which is
obtained from camphoric acid.
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C5H11CO2H
(gcide) | Capric \Cap"ric\, a. [L. caper goat.] (Chem.)
Of or pertaining to capric acid or its derivatives.
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Capric acid (also called decanoic acid), C9H19.CO.OH,
Caprylic acid (also called octanoic acid), C7H15.CO2.H,
and Caproic acid (also called hexanoic acid),
C5H11.CO2.H, are fatty acids occurring in small
quantities in butter, cocoanut oil, etc., united with
glycerin; they are colorless oils, or white crystalline
solids, of an unpleasant odor like that of goats or sweat.
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C6CO2H6
(gcide) | Mellitic \Mel*lit"ic\, a. [Cf. F. mellitique. See Mellite.]
(Chem.)
(a) Containing saccharine matter; marked by saccharine
secretions; as, mellitic diabetes.
(b) Pertaining to, or derived from, the mineral mellite.
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Mellitic acid (Chem.), a white, crystalline, organic
substance, C6(CO2H)6, occurring naturally in combination
with aluminium in the mineral mellite, and produced
artificially by the oxidation of coal, graphite, etc., and
hence called also graphitic acid.
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C6H12CO2H2
(gcide) | Suberic \Su*ber"ic\, a. [L. suber the cork tree: cf. F.
sub['e]reque.] (Chem.)
Of or pertaining to cork; specifically, designating an acid,
C6H12.(CO2H)2, homologous with oxalic acid, and obtained
from cork and certain fatty oils, as a white crystalline
substance.
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C6H2HO3CO2H
(gcide) | Gallic \Gal"lic\ (277), a. [From Gall the excrescence.]
Pertaining to, or derived from, galls, nutgalls, and the
like.
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Gallic acid (Chem.), an organic acid, very widely
distributed in the vegetable kingdom, being found in the
free state in galls, tea, etc., and produced artificially.
It is a white, crystalline substance, C6H2(HO)3.CO2H,
with an astringent taste, and is a strong reducing agent,
as employed in photography. It is usually prepared from
tannin, and both give a dark color with iron salts,
forming tannate and gallate of iron, which are the
essential ingredients of common black ink.
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C6H4CO2H2
(gcide) | Phthalic \Phthal"ic\, a. [Naphthalene + -ic.] (Chem.)
Pertaining to, or designating, a dibasic acid obtained by the
oxidation of naphthalene and allied substances.
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Phthalic acid (Chem.), a white crystalline substance,
C6H4.(CO2H)2, analogous to benzoic acid, and employed in
the brilliant dyestuffs called the phthaleins.
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C6H5C2H2C2H2CO2H
(gcide) | Cinnamic \Cin*nam"ic\, a. [From Cinnamon.] (Chem.)
Pertaining to, or obtained from, cinnamon.
[1913 Webster]
Cinnamic acid (Chem.), a white, crystalline, odorless
substance. C6H5.C2H2C2H2.CO2H, formerly obtained from
storax and oil of cinnamon, now made from certain benzene
derivatives in large quantities, and used for the
artificial production of indigo.
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C6H5CO2H
(gcide) | Benzoic \Ben*zo"ic\ (b[e^]n*z[=o]"[i^]k), a. [Cf. F.
benzo["i]que.]
Pertaining to, or obtained from, benzoin.
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Benzoic acid, or flowers of benzoin, a peculiar vegetable
acid, C6H5.CO2H, obtained from benzoin, and some other
balsams, by sublimation or decoction. It is also found in
the urine of infants and herbivorous animals. It
crystallizes in the form of white, satiny flakes; its odor
is aromatic; its taste is pungent, and somewhat acidulous.
Benzoic aldehyde, oil of bitter almonds; the aldehyde,
C6H5.CHO, intermediate in composition between benzoic or
benzyl alcohol, and benzoic acid. It is a thin colorless
liquid.
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C7H15CO2H
(gcide) | Capric \Cap"ric\, a. [L. caper goat.] (Chem.)
Of or pertaining to capric acid or its derivatives.
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Capric acid (also called decanoic acid), C9H19.CO.OH,
Caprylic acid (also called octanoic acid), C7H15.CO2.H,
and Caproic acid (also called hexanoic acid),
C5H11.CO2.H, are fatty acids occurring in small
quantities in butter, cocoanut oil, etc., united with
glycerin; they are colorless oils, or white crystalline
solids, of an unpleasant odor like that of goats or sweat.
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C9H10ONCO2H
(gcide) | Toluric \To*lu"ric\, a. [Toluic + uric.] (Chem.)
Of, pertaining to, or designating, any one of three isomeric
crystalline acids, C9H10ON.CO2H, which are toluyl
derivatives of glycocoll.
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CH2CO2H2
(gcide) | Malonic \Ma*lon"ic\, a. (Chem.)
Pertaining to, or designating, a dicarboxylic acid produced
artifically as a white crystalline substance, CH2.(CO2H)2,
and so called because obtained by the oxidation of malic
acid.
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CH2O2CO2H2
(gcide) | Mesoxalic \Mes`ox*al"ic\, a. [Mes- + oxalic.] (Chem.)
Pertaining to, or designating, an acid, CH2O2(CO2H)2,
obtained from amido malonic acid.
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CH3C6H3CO2H2
(gcide) | Uvitic \U*vit"ic\, a. [From L. uva a grape. So called because it
may be produced indirectly from tartaric acid, which is found
in the grape.] (Chem.)
Pertaining to, or designating, an acid, CH3C6H3(CO2H)2,
obtained as a white crystalline substance by the partial
oxidation of mesitylene; -- called also mesitic acid.
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CH3C6H4CO2H
(gcide) | Toluic \To*lu"ic\, a. (Chem.)
Pertaining to, or designating, one of three metameric acids,
CH3.C6H4.CO2H, which are related to toluene and analogous
to benzoic acids. They are white crystalline substances, and
are called respectively orthotoluic acid, metatoluic
acid, and paratoluic acid.
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H2NCO2H
(gcide) | Carbamic \Car*bam"ic\ (k[aum]r*b[a^]m"[i^]k), a. [Carbon +
amido.] (Chem.)
Pertaining to an acid so called.
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Carbamic acid (Chem.), an amido acid, H2N.CO2.H, not
existing in the free state, but occurring as a salt of
ammonium in commercial ammonium carbonate; -- called also
amido formic acid.
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HOC6H4C2H2CO2H
(gcide) | Coumaric \Cou*mar"ic\ (k??-m?r"?k), a.
Relating to, derived from, or like, the Dipterix odorata, a
tree of Guiana.
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Coumaric acid (Chem.), one of a series of aromatic acids,
related to cinnamic acid, the most important of which is a
white crystalline substance, HO.C6H4.C2H2.CO2H, obtained
from the tonka bean, sweet clover, etc., and also produced
artificially.
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HOCH2CO2H
(gcide) | Glycolic \Gly*col"ic\, a. (Chem.)
Pertaining to, or derived from, glycol; as, glycolic ether;
glycolic acid.
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Glycolic acid (Chem.), an organic acid, found naturally in
unripe grapes and in the leaves of the wild grape
(Ampelopsis quinquefolia), and produced artificially in
many ways, as by the oxidation of glycol, -- whence its
name. It is a sirupy, or white crystalline, substance,
HO.CH2.CO2H, has the properties both of an alcohol and
an acid, and is a type of the hydroxy acids; -- called
also hydroxyacetic acid.
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