glutathione sepharose high performance cytiva Sepharose™ Media Mild elution conditions preserve protein antigenicity and function Glutathione Sepharose™ 4B GST-tagged protein – activated agarose resulting in a 12 atom (10 carbon) spacer Glutathione Resin

N-acetylcysteine reduces glutamate-induced cytotoxicity to fibroblasts of rat supraspinatus tendons

So Im sure thats what it was

Non-biological agents such as dyes are now often used for this application [126,127], but some biological agents are still used for enzyme separation and isolation, including immobilized inhibitors, substrates, and cofactors [15,10,132134]

Effects of paraoxonase, arylesterase, ceruloplasmin, catalase, and myeloperoxidase activities on prognosis in pediatric patients with sepsis

When the liver is overwhelmed, damaged, or the drainage system is blocked, bilirubin accumulates and causes yellowing