"LM_ID","COMMON_NAME","SYSTEMATIC_NAME","FORMULA","MASS","CATEGORY","MAIN_CLASS","SUB_CLASS","CLASS_LEVEL4","SYNONYMS","INCHI_KEY","INCHI","SMILES","KEGG_ID","HMDBID","CHEBI_ID","ABBREVIATION","PUBCHEM_COMPOUND_ID","LIPIDBANK_ID","SWISSLIPIDS_ID","CAYMAN_ID","ALT_CATEGORIES","ALT_MAIN_CLASSES","ALT_SUB_CLASSES","ALT_CLASS_LEVEL4S","TAXONOMY","CITATION"
"LMFA01030195","Crotonic acid","2E-butenoic acid","C4H6O2","86.03678","Fatty Acyls [FA]","Fatty Acids and Conjugates [FA01]","Unsaturated fatty acids [FA0103]","-","trans-2-butenoic acid; C4:1n-2","LDHQCZJRKDOVOX-NSCUHMNNSA-N","InChI=1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+","C(=C/C)\C(=O)O","C01771","HMDB0010720","41131","FA 4:1","637090","DFA0042","-","-","-","-","-","-","-","-"