庚酮

gēngtóng
  1. (organic chemistry) heptanone
  2. heptanone

Wiktionary

Entry Composition

1 庚 gēng
  1. age
  2. seventh of the ten Heavenly Stems 十天干 shítiāngān
  3. seventh in order
  4. letter "G" or Roman "VII" in list "A, B, C", or "I, II, III" etc
  5. ancient Chinese compass point: 255°
  6. hepta
=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