Definition: A group of organic sulfur-containing nitrites, alkyl thionitrites. S-Nitrosothiols include compounds such as S-NITROSO-N-ACETYLPENICILLAMINE and S-NITROSOGLUTATHIONE.
S-nitrosocysteine [ L-S-nitrosocysteine,L-SNC compound,S-nitroso-L-cysteine,SNC compound ] A sulfur-containing alkyl thionitrite that is a nitric oxide donor.