- 吖啶黄 ādìnghuáng acriflavineA chemical compound used as a topical antiseptic or as an injectable treatment for certain lymphatic infections. The first two characters are a phonetic transcription of the English word "acridine".
- 氨吖啶 ān'ādìng aminoacridineaminoacridine or aminacrine; used as an antiseptic and disinfectant