thiourea उदाहरण वाक्य

"' Ergothioneine "'is a naturally occurring amino acid and is a thiourea derivative of histidine, containing a sulfur atom on the imidazole ring.
Thiourea has been shown to exist predominantly in its thione form at 42 �C in dilute methanol, with the thionol tautomer almost non-existent at neutral pH.
Their isolation from a complex mixture of hydrocarbons is possible due to their high melting point and the ability to distill with water vapor and form stable adducts with thiourea.
A 10 % solution of fluoroboric acid, tin fluoroborate and thiourea is used to electroless tin plate the copper traces of printed circuit boards for protection and easier soldering.
Sulfur-containing compounds, including ammonium thiosulfate ( a popular inhibitor ) are found to operate by producing volatile compounds with strong inhibitory effects such as carbon disulfide and thiourea.

Evidence supports a genetic link between the Kell blood group ( on chromosome 7 q33 ) and the ability to taste phenylthiocarbamide, or PTC, a bitter-tasting thiourea compound.
Thiourea dioxide is not a dioxide, but instead is a derivative of a sulfinic acid ( RS ( O ) ( OH ), hence the alternative name formamidine sulfinic acid.
"' Thiocarbanilide "'is an organic chemical compound with the formula ( C 6 H 5 NH ) 2 CS . This white solid is a derivative of thiourea.
Ethylene thiourea can be used as a biomarker of exposure to ethylenebisdithiocarbamates ( EBDTCs ), which are frequently employed as fungicides in agriculture, mainly on fruits, vegetables and ornamental plants.
It was proposed that the toxicity arose from the thiourea group, and similar guanidine analogues were investigated until the discovery of cimetidine, which would become the first clinically successful H 2 antagonist.