描述
(s)-propane-1,2-diol, also known as (S)-propylene glycol or (S)-1,2-dihydroxypropane, is a member of the class of compounds known as 1,2-diols. 1,2-diols are polyols containing an alcohol group at two adjacent positions (s)-propane-1,2-diol is soluble (in water) and a very weakly acidic compound (based on its pKa). (s)-propane-1,2-diol can be found in a number of food items such as giant butterbur, pasta, celery leaves, and pecan nut, which makes (s)-propane-1,2-diol a potential biomarker for the consumption of these food products (s)-propane-1,2-diol can be found primarily in saliva (s)-propane-1,2-diol exists in all living organisms, ranging from bacteria to humans.