Description

Thiourea-S34 CAS NO 691395-96-7 is a specialized, isotopically labeled thiourea derivative, where the sulfur atom is the stable isotope sulfur-34. This compound is a critical reagent for advanced analytical research and development, offering a non-radioactive tracer for mechanistic studies and metabolic pathway analysis. It is essential for scientists and manufacturers in the fields of pharmaceutical development, agricultural chemical research, and environmental science who require precise isotopic labeling for mass spectrometry, NMR spectroscopy, and other sophisticated analytical techniques.

Application

• Isotopic Tracer in Pharmaceutical Research: Used in drug metabolism and pharmacokinetics (DMPK) studies to track the fate of sulfur-containing drug molecules.
• Mass Spectrometry Internal Standard: Serves as a high-purity internal standard for the accurate quantification of thiourea and related compounds in complex biological matrices via LC-MS or GC-MS.
• Mechanistic Organic Chemistry Studies: Enables detailed investigation of reaction mechanisms involving sulfur, such as nucleophilic substitution and organocatalysis.
• Environmental Fate and Metabolism Studies: Applied in agrochemical research to trace the degradation pathways and environmental impact of sulfur-based pesticides and herbicides.
• Biochemical Pathway Analysis: Utilized in metabolic labeling experiments to study sulfur assimilation and amino acid biosynthesis in biological systems.
• NMR Spectroscopy: Provides a useful probe for structural elucidation and dynamic studies of sulfur-containing compounds without the quadrupolar broadening associated with natural abundance sulfur-32.

Basic Information

Product Name	Thiourea-S34
CAS No.	691395-96-7
Molecular Formula	CH4N234S
Molecular Weight	78.11 g/mol
Synonyms	Sulfur-34 Thiourea; [34S]Thiourea; Thiourea-34S; Thiocarbamide-S34; Isotopic Thiourea; 34S-Labeled Thiourea; Isothiourea-S34 (common misnomer); Sulfur-34 Labeled Thiourea
EINECS	Contact for details

Quality Control

Every batch of Thiourea-S34 is produced and analyzed under strict quality management protocols to ensure exceptional isotopic and chemical purity, which is paramount for sensitive analytical applications. Our quality assurance includes verification of isotopic enrichment (Atom % 34S) by high-resolution mass spectrometry and rigorous testing for chemical purity and identity. A comprehensive Certificate of Analysis (COA) detailing isotopic purity, chemical assay, and impurity profile is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept sealed in a dry environment to prevent absorption of atmospheric moisture, which could affect stability and analytical performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Isotopic Purity (Atom % 34S)	≥ 98%
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.