GFAA Spike Standard Back Catalog number: 53316 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12114.4-10MG Metformin-d6 hydrochloride (dimethyl-d6),neat,neat,10mg, Price on request 674789 PSA-C18-Mix 6 Price on request 59346 Anions Mix - Chloride + Sulfate as SO42- Price on request