christmas snow flake made of benzene methyl group molecule formula icons

christmas concept snow snowflake csimple icon button elements silhouette icons sign symbol graphic element pictogram logo flake merry new year xmas vector celebration festive illustration holiday toluene oxylene metaxylene orthoxylene aromatic hydrocarbon paraxylene mxylene pxylene isomer xylenes dimethylbenzene molecule formula chemical skeletal atomic hand drawn structural model chemistry biochemistry molecular shape made benzene methyl group symbols greeting card line font text brand diagram drawing pattern circle design cartoon document presentation sketch advertising label calligraphy