(2S)-2-hydroxypropanoic acid 79-33-4 26811-96-1 (S)-()-Lactic acid 199257_ALDRICH InChI=1/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6 C00186 L-Lactic acid Propanoic acid, 2-hydroxy-, (S)-, homopolymer CHEBI:422 (2S)-2-Hydroxypropanoic acid homopolymer 27715_RIEDEL L-()-Lactic acid 46937_SUPELCO 69771_FLUKA L1750_SIGMA L-Milchsaeure nchembio867-comp9 L6402_SIGMA