d031b852_ध_रस_यन___क__स_च____व_क_प_ड_य___Source_and_description
[Chemical name] lactic acid [Chemical formula] C3H6O3 [Common or alternative name] Milk Acid [Source and description] 
Available from grocery stores and health food stores.
सरलता से उपलब्ध रसायनों की सूची - विकिपीडिया