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2,3-DIAMINODIHYDROPYRAZOLO PYRAZOLONE DIMETHOSULFONATE [2,3-DIAMINODIHYDROPYRAZOLO PYRAZOLONE DIMETHOSULFONATE]

2,3-diaminodihydropyrazolo pyrazolone dimetholsulfonate is a colour precursor used in permanent oxidation dyes. It is a patented L'Oréal molecule, called Rubilane®. When combined with oxidation couplers, it creates red copper shades.

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