Betaine Back Catalog number: 94548 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PAH-LCS-B PAH Labelled Compound Solution, 1.2ml, isooctane Price on request GLC-674 GLC Reference standard 674, 100mg Price on request BDE-171 2,2',3,3',4,4',6-Heptabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request