2-Aminoethane-d4-sulfonic Acid | CAS 342611-14-7

OVERVIEW
2-Aminoethane-d₄-sulfonic Acid is a stable deuterium-labelled analogue of taurine (2-aminoethanesulfonic acid), where four hydrogen atoms in the ethyl chain are replaced with deuterium. This isotopic modification results in a +4 Da mass shift while retaining identical molecular structure and chemical reactivity to the non-labelled taurine. The compound is primarily used as an internal standard in analytical chemistry and mass spectrometry, offering high precision in quantitative measurements. Its chemical and isotopic stability make it highly suitable for applications in biochemical research, metabolic tracing, and NMR spectroscopy.

2-Aminoethane-d₄-sulfonic Acid is produced under controlled isotopic enrichment conditions, ensuring consistent deuteration levels and purity. The compound’s close resemblance to its non-labelled counterpart allows it to behave identically in biological and chemical systems, making it a valuable tool in isotope-based analytical studies.

CHEMICAL INFORMATION

• Name: 2-Aminoethane-d₄-sulfonic Acid;

• Molecular Formula: C₂H₃D₄NO₃S

• Molecular Weight: 129.17 g/mol

• CAS Number: 342611-14-7

• Isotopic Enrichment: Approximately 99 atom % D

• Stability: Stable under normal laboratory conditions; may be sensitive to prolonged moisture or high temperatures

APPLICATIONS  of  2-Aminoethane-d4-sulfonic Acid | CAS 342611-14-7

• Mass Spectrometry Internal Standard: Due to its +4 Da isotopic shift and identical chemical properties to taurine, this compound is widely used as an internal standard for quantitative LC-MS and GC-MS analyses. It enables accurate quantification of taurine and related sulfonic acid derivatives in complex biological or environmental samples.

• NMR Spectroscopy: The deuterium substitution suppresses proton signals, simplifying spectral interpretation and allowing clearer observation of specific hydrogen-containing functional groups in related compounds.

• Metabolic and Biochemical Tracing: As a non-radioactive isotopic tracer, it is used to follow taurine metabolism in biochemical pathways, including studies on amino acid transport, conjugation, and cellular energy regulation.

• Analytical Method Validation: Utilized for calibration and validation of analytical methods, providing consistency in quantitative assays due to its isotopic distinctness.

• Mechanistic Studies: The kinetic isotope effect associated with deuterium substitution can be exploited to study reaction mechanisms and hydrogen-transfer processes involving sulfonic acid or amino groups.

ADVANTAGES  of  2-Aminoethane-d4-sulfonic Acid | CAS 342611-14-7

• High isotopic purity ensures strong mass distinction and accurate analytical performance.

• Chemically identical to taurine, ensuring the labelled standard behaves similarly in both physical and biological systems.

• Provides a clear and predictable mass shift (+4 Da), simplifying data interpretation in mass spectrometry.

• Reduces background noise in NMR spectra due to deuterium substitution, improving overall signal clarity.

• Suitable for both qualitative and quantitative isotope-dilution analyses.

• Highly stable compound suitable for long-term storage under controlled conditions.

HANDLING
2-Aminoethane-d₄-sulfonic Acid is considered low-hazard and can be handled using standard laboratory safety practices.

• Avoid inhalation of dust or contact with eyes and skin.

• Use appropriate personal protective equipment such as gloves, safety goggles, and lab coats.

• Work in a well-ventilated area or fume hood when handling large quantities.

• Store in a tightly closed container in a cool, dry environment.

• Protect from moisture and excessive heat to maintain chemical stability.

QUALITY & SPECIFICATION
Each batch of 2-Aminoethane-d₄-sulfonic Acid is analyzed for isotopic enrichment, chemical purity, and structural integrity using validated analytical methods such as NMR and mass spectrometry. It typically exhibits ≥ 98 % chemical purity and ≥ 99 % isotopic enrichment. A Certificate of Analysis (COA) accompanies the product to confirm compliance with these quality standards.

SUMMARY
2-Aminoethane-d₄-sulfonic Acid (CAS 342611-14-7) is a high-purity, deuterium-labelled analogue of taurine designed for use in advanced analytical, biochemical, and isotope-based studies. With its high isotopic enrichment, excellent chemical stability, and structural equivalence to natural taurine, it serves as a reliable reference material and analytical standard. Its diverse applications in mass spectrometry, NMR spectroscopy, and biochemical tracing make it an essential reagent for precision research and quantitative analysis in modern laboratories.