(S)-L-Cystine-15N2

• CAT Number: S000667
• Molecular Formula: C6H1215N2O4S2
• Molecular Weight: 242.29
• Purity: ≥95%
• IUPAC Name: (2S)-2-(15N)azanyl-3-[[(2R)-2-(15N)azanyl-2-carboxyethyl]disulfanyl]propanoic acid
• InChI: InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4+/i7+1,8+1
• InChIKey: LEVWYRKDKASIDU-DNEJPWMJSA-N
• SMILES: C(C(C(=O)O)N)SSCC(C(=O)O)N

(S)-L-Cystine-15N2​（Cat No.:S000667） is a labeled version of (S)-L-cystine, where both nitrogen atoms are enriched with nitrogen-15, enhancing its detectability for use in sensitive analytical techniques such as NMR spectroscopy and mass spectrometry. L-cystine, the dimeric form of the amino acid cysteine linked by a disulfide bond, plays a critical role in protein structure and function. The labeling is particularly useful for studying protein folding, disulfide bond formation, and the oxidative stress response in cells. This dual nitrogen labeling allows precise tracking and analysis of cystine’s metabolic pathways and interactions in biological systems.