(R,S)-N-Acetyl-S-[1-(hydroxymethyl)-2-propenyl)-L-cysteine-d6 + (R,S)-N-Acetyl-S-[2-(hydroxymethyl)-3-propenyl)-L-cysteine-d6 (Mixture)

(R,S)-N-Acetyl-S-[1-(hydroxymethyl)-2-propenyl)-L-cysteine-d6 + (R,S)-N-Acetyl-S-[2-(hydroxymethyl)-3-propenyl)-L-cysteine-d6 (Mixture) is a chemical compound used in the field of pharmaceuticals and biotechnology. This compound is a mixture of two isotopically labeled cysteine derivatives, both of which have a deuterium atom incorporated into their molecular structure. The primary use of this compound is as a stable isotope-labeled internal standard in mass spectrometry-based quantitative proteomics analysis. It is used as a reference compound to help accurately quantify the levels of certain proteins in biological samples. The deuterium atoms in the compound help to provide a consistent and reliable measurement of the protein levels, even when the sample is subject to different processing conditions. Chemically, this compound is a derivative of cysteine, an amino acid that plays a crucial role in the formation of proteins. The addition of the acetyl group and the hydroxymethyl propenyl group to the cysteine molecule alters its chemical properties and makes it more suitable for use as an internal standard in mass spectrometry-based analysis. Overall, (R,S)-N-Acetyl-S-[1-(hydroxymethyl)-2-propenyl)-L-cysteine-d6 + (R,S)-N-Acetyl-S-[2-(hydroxymethyl)-3-propenyl)-L-cysteine-d6 (Mixture) is an important compound for researchers in the field of quantitative proteomics. Its stable isotope labeling and chemical properties make it an ideal internal standard for accurate protein quantification.