Wholesale N‑Acetyl‑L‑Cysteine Ethyl Ester NACET Powder CAS 59587‑09‑6

Antioxidant Properties

The glutathione system constitutes the most critical intracellular antioxidant defense mechanism; cysteine, in turn, serves as the rate-limiting precursor for glutathione synthesis. N-acetylcysteine ​​(NAC) is a commonly utilized cysteine ​​supplement; however, it is characterized by relatively low lipophilicity and bioavailability. Its esterified derivative—N-acetyl-L-cysteine ​​ethyl ester (NACET)—demonstrates superior efficacy in traversing cell membranes. Once internalized, it is converted into N-acetylcysteine ​​and subsequently releases cysteine ​​in a sustained manner, thereby elevating intracellular glutathione levels. Experimental studies have confirmed that oral administration of NACET effectively increases the levels of antioxidant substances within the retinas of mice across various age groups. Notably, the retinas of aged mice exhibit extensive dysregulation of senescence-associated genes; NACET has been shown to effectively ameliorate specific abnormalities within this subset of aging-related genes.

Protecting Visual Acuity

Experimental studies utilizing diabetic mice as an animal model have demonstrated that oral administration of N-acetyl-L-cysteine ​​ethyl ester during the early stages of diabetes onset can effectively prevent diabetes-induced retinopathy and safeguard vision-related functions. Further confirmed by imaging and histological analyses, N-acetyl-L-cysteine ​​ethyl ester prevents the thinning of the retinal nerve fiber layer and ganglion cell layer caused by diabetes, while also maintaining the density of retinal ganglion cells. This compound modulates cellular stress and inflammation-related processes, inhibits pro-aging inflammatory factors, and enhances cellular resistance to damage; thereby suppressing chronic ocular inflammation and, at the molecular level, delaying the natural aging of the retina.