(n.) A name given to any one of several yellow or scarlet dyestuffs of artificial production and complex structure. In general they are diazo and sulphonic acid derivatives of benzene and naphthol.
Example Sentences:
(1) We describe an improved immunodiffusion stain using trichloroacetic acid to mordant dying by Crocein scarlet.
Naphthol
Definition:
(n.) Any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor.
Example Sentences:
(1) The formation of 1-naphthol from naphthalene was investigated in rat brain 105,000 g particulate fraction.
(2) These procedures gave about 39-fold purification and 11.5% yield of the transferase activity toward 1-naphthol.
(3) In all cases, naphthalene was metabolised to a covalently bound product(s) and to two major methanol-soluble products, which co-chromatographed with 1-naphthol and 1,2-dihydro-1,2-dihydroxynaphthalene.
(4) Phagocytic activity of the reticuloendothelial system (RES) and blood cholinesterase activity were determined in male rats after veinous administrations of carbaryl and 1-naphthol, a carbaryl metabolite.
(5) Introduction of the UDP moiety in the triphenylalcohols increased their inhibition potency markedly toward the isoforms which glucuronidate 1-naphthol and testosterone, but strongly decreased that toward bilirubin.
(6) Leukocyte microsomal HMG-CoA reductase, first immobilized onto a nitrocellulose filter, is sequentially reacted with 1) monospecific, polyclonal rabbit anti-rat liver HMG-CoA reductase antiserum, which crossreacts with the human liver and leukocyte enzymes; 2) biotinylated donkey anti-rabbit immunoglobulin; 3) a streptavidin-horseradish peroxidase conjugate; and 4) 4-chloro-1-naphthol and H2O2 to visualize the quantity of horseradish peroxidase bound to the immunocomplex.
(7) This formation of 1,4-NQ was dependent upon hypoxanthine, xanthine oxidase, and 1-naphthol and was inhibited by the addition of superoxide dismutase (SOD) demonstrating that the conversion was O2-mediated.
(8) Using PAH as a marker for the maximal extractable perfusion flow, 1-naphthol could be regarded as a high-extraction compound even at high perfusion flow rates.
(9) Activation of human neutrophils with opsonized particles in the presence of a nontoxic dose of 1-naphthol resulted in inhibition of superoxide anion production but not of the phagocytotic activity of the cells.
(10) Glucuronidation of 1-naphthol and estrone attained 87% and 44% of adult activity at 22 days of gestation, 37% and 66% in six-day-old rats and 100% and 427% of adult activity in 22-day-old rats, respectively.
(11) Polymorphism of placental alkaline phosphatase (PL) was investigated in 120 Japanese placentae by means of starch gel electrophoresis and an improved staining method for the isoenzymes using naphthol AS-MX phosphate as substrate instead of beta-naphthyl phosphate.
(12) Several human myeloma cell populations were studied using a combination of cytochemical (Unna-Pappenheim and naphthol yellow staining, Feulgen reaction) and autoradiographical (uridine, leucine, thymidine uptake and actinomycin binding) techniques.
(13) It was concluded that the use of 4-chloro-1 naphthol to develop the primary sequence peroxidase and of 3-amino-9-ethyl carbazole for the second sequence peroxidase was the most suitable.
(14) Glucuronidation of 1-naphthol, bilirubin but not of testosterone could be followed in the microsomal fraction.
(15) Colonies derived from mouse bone marrow cells in plasma clot culture were classified as granulocyte (CFU-g) or macrophage (CFU-m) precursors by peroxidase and naphthol AS acetate (NASA) esterase staining, respectively.
(16) The distributions of lipid, glycogen, peroxidase, acid and alkaline phosphatases, beta-glucuronidase and naphthol AS-D chloroacetate esterase have been studied in the cells of peripheral smears from the wall ghecko and the crocodile.
(17) In neither the mouse nor the rat did 1-naphthol cause a depletion of non-protein sulphydryl levels or tissue damage in the liver, lung or kidney.
(18) Authentic 14C1-naphthyl-labeled N-CH2OH-carbaryl was shown to be converted to desmethylcarbaryl (1-naphthylcarbamate) 97%) and 1-naphthol (3%) by 0.1N HCl hydrolysis.
(19) Alkaline phosphatase was visualized using a Fast Red naphthol-capture method and the sections were counterstained with haematoxylin.
(20) Neutrophils and monocytes of coronary patients and healthy subjects were investigated for activity of alpha-naphthylacetate esterase, naphthol--AS--D+chloroacetate esterase, alpha-naphthylbutyrate esterase.