Formulation: A solid
Formal Name: L-methionine, S-oxide
Purity: ≥95%
Formula Markup: C5H11NO3S
Formula Weight: 165,2
Shelf life (days): 1460
CAS Number: 3226-65-1
Notes: L-Methionine sulfoxide is an endogenous sulfoxide-modified form of methionine.{66328,66329} It is formed from L-methionine by oxidative damage and can be reduced back to L-methionine by methionine sulfoxide reductase A (MSRA) and MSRB.{66328} Dietary replacement of L-methionine with L-methionine sulfoxide (6.3, 12.6, and 18.9 mmol/g) increases weight gain in weanling mice.{66329} The levels of L-methionine sulfoxide, MSRA, and MSRB are decreased in patients with vitiligo, a condition characterized by loss of skin pigmentation.{66328}