发明申请
WO2007107311A3 ORGANIC SULPHINIC ACID DERIVATIVES 审中-公开
有机亚磺酸衍生物

ORGANIC SULPHINIC ACID DERIVATIVES
摘要:
The invention relates to special sulphinic acid derivatives of formula (I), wherein M represents a hydrogen atom or an equivalent of a monovalent or polyvalent cation, R is derived from a peptide or represents a group according to one of the formulae (II) to (VI), (for the meaning of the remaining substitutients see claim 1), enabling a durable decolouration of the dyed substrates to take place without darkening the decoloured substrates. The substrate structure is not damaged during the decolouration process.
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