壬酮

réntóng
  1. (organic chemistry) nonanone
  2. nonanone

Wiktionary

Entry Composition

1 壬 rén
  1. ninth of the ten Heavenly Stems 十天干 shítiāngān
  2. ninth in order
  3. letter "I" or Roman "IX" in list "A, B, C", or "I, II, III" etc
  4. ancient Chinese compass point: 345°
  5. nona
=2 酮 tóng ketone
=2 酮 dòng
  1. (obsolete on its own in Standard Chinese, of alcohol, vinegar) to spoil; to go bad
  2. to spoil; to go bad
=2 酮 chóng
  1. (obsolete on its own in Standard Chinese, of alcohol) to become sour
  2. to become sour