CAS 56-40-6 appears in our catalog under these names: Oxiracetam Impurity L, Glycine, Glycine, >95% (HPLC), Glycine 1000 µg/mL in Water, glycine/ 99.54% (existing batch purity). Offered by: Chemat Brand, TRC, Mikromol, Dr. Ehrenstorfer, TargetMol. Available pack sizes: on request, 10g, 10mg, 1g, 250mg, 1ml, 500mg, 1kg.