L-Histidine Back Catalog number: 72181 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72969 Benzyl 4-hydroxybenzoate Price on request 1028.16-500-IO 9-Ethylphenanthrene,500µg/mL,isooctane,1mL, Price on request 95451 PCB Congeners & Hexachlorobenzene Mix #2 Price on request