Reach pre-registered ,Long-term stable supply,just in time delivery and service. Hydroxylamine sulfate Specification: TESTSSPECIFICATIONS DescriptionWhite crystal Chloride0.0005% max Heavy metal(Pb)0.0003%max Iron0.0005%max Assay99.0% min Application:Reducing agentdevelopercaprolactamPharmaceutical:VB1,VB6Agrochemicals. hydroxylamine sulfate 99%,Reach registered. good quality and service