Fluoresceyn or Fluorescein: How To spell?

The word Fluoresceyn is misspelled against Fluorescein, a noun meaning "A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin."

Word contains consecutive vowels 'EI' in between alphabets fluoresc & n is misspelled as 'EY'
Wrong Spelling:  fluoresc-ey-n 
Correct Spelling:  fluoresc-ei-n 
Check more misspelled words of Fluorescein to spell it correct.