- 嘧啶 mìdìng pyrimidinepyrimidine C4H4N2
- 吡啶 bǐdìng pyridinepyridine C5H5N (loanword)
- 哌啶 pàidìng piperidinepiperidine (chemistry)
- 胞嘧啶 bāomìdìng cytosinecytosine nucleotide (C, pairs with guanine G in DNA and RNA)
- 尿嘧啶 niàomìdìng uraciluracil (U), a nucleotide base that pairs with adenine (A) in RNA
- 胸腺嘧啶 xiōngxiànmìdìng thyminethymine (T, pairs with adenine A [[腺嘌呤|腺嘌呤|xian4 piao4 ling4]] in DNA)
- 吖啶 ādìng acridineacridine (antiseptic and disinfectant)
- 哌替啶 pàitìdìng pethidinepethidine (aka meperidine or Demerol)
- 氨吖啶 ān'ādìng aminoacridineaminoacridine or aminacrine (antiseptic and disinfectant)
- 吖丁啶 ādīngdìng azetidineazetidine (chemistry) (loanword)
Sources
- Frequency data
- MTSU Chinese text computingSUBTLEX-CH