Name:C.I.Leuco Sulphur Brown 12,C.I.53721
CAS Registry Number:
Manufacturing Methods : similar C.I. Sulphur Red 6 (C.I. 53720) stated in the method, The curing reaction is not added to copper sulfate. According to Ken shade requirements, adjust the curing reaction (reduce) the proportion of copper sulfate, available shade from dark red to red-brown dye.
Properties and Applications: red light brown. Part of the soluble in water. In concentrated sulfuric acid for blue purple, dilution after brown precipitation; In the Sodium sulfide solution solubility is good, for the red light brown.
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List of Suppliers:
Asathiosol Red Brown S-RT( Kaseihin Kogyo Kyokai )
Solsul Red Brown SBR( SF Dyes Pvt Ltd )
Tancol Red Brown LR ( SF Dyes Pvt Ltd )