Mauvaine or Mauveine: How To spell?

The word Mauvaine is misspelled against Mauveine, a noun meaning "An artificial organic base, obtained by oxidizing a mixture of aniline and toluidine, and valuable for the dyestuffs it forms."

Word contains consecutive vowels 'EI' in between alphabets mauv & ne is misspelled as 'AI'
Wrong Spelling:  mauv-ai-ne 
Correct Spelling:  mauv-ei-ne 
Check more misspelled words of Mauveine to spell it correct.