133745-70-7
2,2-bis(4-chlorophenyl)-[1,3]dithiane
21367-49-7
4,4'-dichloro-benzophenone 4-phenyl-semicarbazone
32315-10-9
三光气
3988-03-2
4,4'-二溴二苯甲酮
98-60-2
4-氯苯磺酰氯

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