Hexikosane or Hexeikosane: How To spell?

The word Hexikosane is misspelled against Hexeikosane, a noun meaning "A hydrocarbon, C26H54, resembling paraffine; -- so called because each molecule has twenty-six atoms of carbon."

Word contains consecutive vowels 'EI' in between alphabets hex & kosane is misspelled as 'I' as letter 'E' is phonetically igno
Wrong Spelling:  hex-i-kosane 
Correct Spelling:  hex-ei-kosane 
Find more incorrect spellings of Hexeikosane to spell right way.