ISTD/Surrogate Standard Back Catalog number: 92572 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675767 Isazofos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 677784 Metformin hydrochloride, 100 µg/ml, Methanol, 1m Price on request 51105 Salts in Crude Oil Price on request