QC Standard 1 Back Catalog number: 53084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1979.19-K-IO 4-n-Nonylphenol diethoxylate, 1000µg/ml in Isooctane, 1ml Price on request 12077.21-250MG Streptomycin Sulfate,neat,neat,100mg, Price on request Y0000583 Valerian dry extract, 400mg Price on request