Acid ester series
Molecular formula: RConHOH(R = C4 ~ 8 alkyl)
Salicylhydroxamic acid (same name: Salicylhydroxamic acid)
Molecular formula: C6H4OHCONHOH
Structural formula:(CH3CH2)2NCSSCH2CH2CN
Main ingredients:(CH3)2CHOC(S)NHC2H5