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polyvinylpyrrolidone/PVP K30/PVP K90

PVP K30/K90 9003-39-8 1,USP standard. 2,Pharmaceutical grade,cosmetic grade, food grade. 3,PVP K30, K90

6-Aminocaproic acid USP32

6-Amino-n-caproic Acid CAS-NO: 60-32-2 Assay:99%min ISO,USp/BP/EP high quality competitive price Professinal manufacturer