chromogen


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Related to chromogen: Auxochrome

chro·mo·gen

 (krō′mə-jən)
n.
1. Chemistry A substance capable of conversion into a pigment or dye.
2. Biology A strongly pigmented or pigment-generating organelle, organ, or microorganism.

chro′mo·gen′ic (-jĕn′ĭk) adj.

chromogen

(ˈkrəʊmədʒən)
n
1. (Chemistry) a compound that forms coloured compounds on oxidation
2. (Chemistry) a substance that can be converted to a dye
3. (Microbiology) a bacterium that produces a pigment

chro•mo•gen

(ˈkroʊ mə dʒən, -ˌdʒɛn)

n.
1.
a. any substance found in organic fluids that forms colored compounds when oxidized.
b. a colored compound that can be converted into a dye.
2. a chromogenic bacterium.
[1855–60]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chromogen - a compound that can be converted to a pigment
stercobilinogen, urobilinogen - a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Translations

chro·mo·gen

n. cromógeno, sustancia que produce color.
References in periodicals archive ?
The immunohistochemistry was performed as described previously (Bancroft and Gamble, 2008) using anti-TGF-[alpha] (Abcam, ab16768) as primary antibody and biotinylated horseradish conjugate (Abcam, ab16768) as secondary antibody with DAB chromogen used for detection of color (Bancroft and Gamble, 2008).
The DTNB 5,5'-Dithiobis (2-nitrobenzoic acid) disulfide present in the measurement medium is a chromogen and is easily reduced by the sulfhydryl group-containing compounds.
DS9800; Leica Biosystems), using 3,3'-diaminobenzidine (DAB) as the chromogen.
The sections were then incubated with horseradish peroxidase (HRP)--labeled avidin (supplied ready-to-use, Scy Tek UltraTek HRP, Anti-Polivalent, UHP 125, USA) for 25 min, and then labeling revealed by incubation with a freshly prepared solution of 3-amino-9-ethylcarbazole (AEC, 20 ml AEC chromogen with each 1 ml of AEC substrate, Scy Tek ACJ 125 AEC Chromogen/Substrate Bulk Pack, USA) for 5-10 min.
Signals were developed with an avidin-biotin horseradish peroxidase complex and diaminobenzidine (DAB) chromogen using the RealTM EnvisonTM Detection system (Dako, Glostrup, Denmark).
The sections were then incubated with a 3,3'-diamino-benzidine (DAB) chromogen system (Dako) for 2 min at room temperature and counterstained with hematoxylin.
The sections taken from Tris buffer were left in 3-amino-9-ethylcarbazole (AEC) chromogen for 20 minutes and washed with distilled water.
Briefly, 20 [micro]L of serum or standard ([H.sub.2][O.sub.2]) was added to a solution containing 1960 [micro]L of acetate buffer (pH 4.8) and 20 [micro]L of chromogen (0.0028 mol/L).
Caption: Figure 4: (a) CMV immunohistochemical stain, 200x magnification, highlighting both nuclear and cytoplasmic staining (brown chromogen) within the ulcerated granulation tissue.
The substrate is DAB in chromogen solution produced a positive reaction resulting in a brown-color precipitate at the antigen site in these tissues.
Onah, Colorimetric Method for the Determination of Hydralazine Hydrochloride in Pharmaceutical Formulations Using Vanillin as Chromogen, J.