10230-39-4
2-Acetyl-phenoxathiin
→
6694-79-7
phenoxathiine-2-carboxylic acid
262-20-4
吩恶噻
+
33758-39-3
N-ethyl-N-phenylcarbamoyl chloride
123-91-1
1,4-二氧六环
二噁烷