tiān dōng běn bǐng èr tài zhǐ
aspartame C14H18N2O (artificial sweetener)
天
tiān
day
冬
dōng
(onom.) beating a drum
苯
běn
benzene
丙
bǐng
third of the ten Heavenly Stems 十天干[shi2 tian1 gan1]
二
èr
two
肽
tài
peptide (two or more amino acids linked by peptide bonds CO-NH)
酯
zhǐ
ester