Basic Info.Model NO.:OB-1 C. I. 393Certification:SGSEnvironmental Protection:YesColor:GreenKind:PlasticizerAppearance:PowderOther ... Drum/Plastic BagSpecification:SGSOrigin:ChinaProduct DescriptionOptical brightener OB-1C.I.393 CAS:1533-45-5CHEMICAL NAME: 2,2-( ... -1,polyamide fiber, nylon and polyester have significantly good whiteness. Mixed with this product, recycling polyester waste material, bottle ...