3-(3,5-dichloro-4-hydroxyphenyl)-2-hydroxypropanoic acid InChI=1/C9H8Cl2O4/c10-5-1-4(2-6(11)8(5)13)3-7(12)9(14)15/h1-2,7,12-13H,3H2,(H,14,15 benzenepropanoic acid, 3,5-dichloro-alpha,4-dihydroxy-