Methylparaben, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 681247 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 13560-AC5 Siloxanes - Mix 7, 10µg/ml in Acetone, 5ml Price on request 59277 pH 8.0 Standard @ 25°C, in water, 100ml Price on request 71160 Cresylic acid Price on request