| chloromercurinitrophenols | <chemical> Mercuriphenols substituted with one or more chlorine atoms and one or more nitro groups. Some of these are sulfhydryl reagents which act as chromophoric probes in enzymes and other proteins. Pharmacological action: sulfhydryl reagents. (12 Dec 1998) |
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| chloromethane | A refrigerant with anaesthetic properties when inhaled; it hydrolyzes to methanol. Synonym: methyl chloride. (05 Mar 2000) |
| chlorometry | The measurement of chlorine content, or the use of analytical techniques involving the release or titration of chlorine. (05 Mar 2000) |
| chloromuconate cycloisomerase | <enzyme> Converts 2-chloro-5-oxo-2,5-dihydrofuran-2-acetate to 3-chloro-cis,cis-muconate, which spontaneously eliminates hcl to produce cis-4-carboxymethylbut-2-en-4-olide Registry number: EC 5.5.1.7 Synonym: muconate cycloisomerase II (26 Jun 1999) |
| chloromyeloma | Synonym: chloroma. Origin: chloro-+ G. Myelos, marrow, + -oma, tumour (05 Mar 2000) |
| chloropenia | A deficiency in chloride. Origin: chloro-+ G. Penia, poverty (05 Mar 2000) |
| chloropercha | A solution of gutta-percha in chloroform, used in dentistry as an agent to lute gutta-percha filling material to the wall of a prepared root canal. (05 Mar 2000) |
| chloropercha method | A method of filling the root canals of teeth by dissolving gutta-percha cones in a chloroform-rosin medium within the root canal. Synonym: Callahan's method, Johnson's method. (05 Mar 2000) |
| chlorophenol | One of several substitution products obtained by the action of chlorine on phenol; used as antiseptics. (05 Mar 2000) |
| chlorophenol 4-monooxygenase | <enzyme> Enzyme responsible for converting 2,4,5-trichlorophenol to 2,5-dichloro-p-hydroquinone and then to 5-chloro-1,2,4-trihydroxybenzene (5-chlorohydroxyquinol); from burkholderia cepacia ac1100 Registry number: EC 1.14.- (26 Jun 1999) |
| chlorophenols | Phenols substituted with one or more chlorine atoms in any position. (12 Dec 1998) |
| chlorophenothane | 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane;an insecticide that came into prominence during and after World War II. For a time it proved very effective, but insect populations rapidly developed tolerance for it, hence much of its original effectiveness has been lost; general usage is now widely discouraged because of the toxicity that results from the environmental persistence of this agent. Synonym: chlorophenothane, dicophane. Acronym: DDT (05 Mar 2000) |
| chlorophyll | The photosynthetic pigments of higher plants, but closely related to bacteriochlorophylls. Magnesium complexes of tetrapyrolles. (18 Nov 1997) |
| chlorophyll a | Magnesium(II) pheophytinate a [(pheophytina to a)magnesium(II)];the major pigment found in all oxygen-evolving photosynthetic organisms (higher plants, and red and green algae). (05 Mar 2000) |
| chlorophyll b | (CH3 at 7 replaced by CHO in the chlorophyll structure), magnesium(II) pheophytinate b [(pheophytinato b) magnesium(II)]; the chlorophyll generally characteristic of higher plants (including the Chlorophyta, Euglenaphyta, and green algae). Absent in other types of algae. (05 Mar 2000) |