S-1-Propenyl-L-cysteine Powder

Research on S-1-propenyl-L-cysteine (S1PC) covers muscle aging, immune-related signaling and vascular endothelial barriers. A 2026 Cell Metabolism study reported improved muscle force and frailty indices in aged mice and circulating eNAMPT changes in participants maintaining healthy adipose mass. Human biomarker findings are distinct from demonstrated muscle-function improvement. MyD88/autophagy and endothelial studies mainly provide cell or animal mechanistic evidence. References: PMID 42102814, 30237533 and 33588881.

Purity is determined by HPLC against a characterized reference standard, consistent with standard practice for high-purity sulfur-containing amino acids of this type.

The compound is supplied as the L-cysteine stereoisomer; optical rotation or chiral HPLC analysis can be discussed as additional confirmatory testing for buyers with that specific requirement.

A properly validated HPLC method with adequate resolution can separate S1PC from S-allyl-L-cysteine (SAC), since the two are structurally distinct isomers differing in double-bond position.

The specification sheet can be requested. A batch-specific HPLC chromatogram and integration data can be shared where available; please confirm recent-batch COA availability with sales before ordering.

It refers to the main-component HPLC purity of S1PC itself, with a batch-specific figure recorded in the accompanying analytical documentation.

A characterized S1PC reference material is used for HPLC calibration; specific standard sourcing can be discussed for buyers requiring that level of documentation.

Identity is established through chromatographic retention behavior and spectroscopic comparison (e.g., NMR/MS) against known S1PC reference data, distinguishing it from related compounds such as SAC and S-allylmercaptocysteine.