sai1
used in transliteration

strokes 16
radical
strokes after radical 13
苯并噻吩 苯並噻吩 ben3 bing4 sai1 fen1
benzothiophene C8H9, a heterocyclic compound (with one benzene ring and one cyclopentene ring)

噻唑 噻唑 sai1 zuo4
thiazole (chemistry)

哇噻 哇噻 wa1 sai1
see 哇塞