1722-94-7
(2-phenylethylideneamino)urea
5315-86-6
[(4-chlorophenyl)methylideneamino]urea
1846-78-2
2-oxochromene-3-carboxamide
22107-29-5
[1-(3-nitrophenyl)ethylideneamino]urea
21531-96-4
4-氨基-(4H)-1,2,4-噻唑-3,5-二醇

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