Indicator, Reagent, or Diagnostic Aid
thiourea
thi·o·u·re·a [ thahy-oh-yoo-ree-uh, -yoo r-ee-uh ]
Subclass of:
Urea
Definitions related to thiourea:
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(NH2)2C=S; precursor and metabolite of 2-thiouracil, used for similar purposes.CRISP ThesaurusNational Institutes of Health, 2006
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A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A white crystalline solid, both naturally occurring and synthetic, that is soluble in water, ammonium thiocyanate solution and ethanol. In the past, it was used as a photographic toning agent, a component of hair preparations and a dry cleaning agent. Currently, it is only used in animal glue liquefiers and silver tarnish removers. When heated to decomposition, thiourea emits toxic fumes of nitrogen oxides and sulfur oxides. Long-term exposure of humans to thiourea may cause bone marrow damage, resulting in reduced levels of red blood cells, white blood cells and/or platelets. It is reasonably anticipated to be a human carcinogen. (NCI05)NCI ThesaurusU.S. National Cancer Institute, 2021
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