2-methylicosane 2-methyleicosane 2-methylicosane 296.344 296.575 A branched alkane consisting of icosane bearing a single methyl substituent at position 2. C21H44 CAS:52845-08-6 CCCCCCCCCCCCCCCCCCC(C)C CHEBI:132293 Chemspider:452834 InChI=1S/C21H44/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(2)3/h21H,4-20H2,1-3H3 Isoheneicosane MLKZKPUBHSWMNA-UHFFFAOYSA-N Reaxys:1748513 chebi_ontology isohenicosane alkane