Thiourea Crystal, Lab Grade *


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Thiourea, also known as Thiocarbamide, Isothiourea, and 2-Thiourea, has the chemical formula CH4N2S or H2NCSNH2. It appears as white or off-white lustrous crystals or powder with no odor and a bitter taste. It is soluble in Water and Alcohol at ambient conditions. Thiourea is the simplest member of the Thiourea class, consisting of Urea whose Oxygen atom is substituted by Sulfur. When heated to decomposition, it emits toxic fumes of Nitrogen Oxides and Sulfur Oxides. Chemically pure or Laboratory reagents are the two terms often used to describe Lab Grade chemicals. Lab Grade chemicals do not meet any accepted quality or purity requirements such as the ACS Grade, the USP Grade, and the FCC Grade, despite their acceptable purity. In the United States of America (USA), Lab Alley is selling its high-quality Thiourea, Lab Grade, online at Due to its high purity, this Lab Alley product is highly recommended for labs and commercial applications.


Thiourea Crystal Lab Features:

Assay (CH4N2S; Dryed Basis) Min. 99.0%
Melting Point 174°-177°C
Sensitivity to Bismuth To Pass Test
Solubility in Water To Pass Test
Residue after Ignition 0.1%
Loss on Drying 0.5%
Common Uses
  • Reagent
  • Chemical precursor
  • Antioxidant agent
Commercial/industrial applications
  • Synthesis of dyes
  • Processing of textiles
  • Industrial cleaning agent
  • Drilling muds• Extraction of gold and silver
  • Petroleum industry
Safety and Handling

Thiourea Crystal Lab Shipping Information:
DOT: Toxic solid, n.o.s. (Thiourea), 6.1, UN2811, PG III

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Thiourea Crystal Lab.

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