"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"	"-"	"-"	"-"	"-"	"-"	"-"	"-"	"-"