2 4-pentanedione 3-methyl- July 8, 2019 16 32 64 128 3-methyl 2 4 pentanedione 3 methyl 2 4 pentanedione nmr 3-methyl 2 4-pentanedione sds 2 4-pentanedione 2 4-pentanedionate 2 3-pentanedione 2 4-dimethyl-3-pentanone
