L-Proline Back Catalog number: 72241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2128.12-K-IO Arochlor 1254, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11097-69-1 Price on request 50333 Sulfite (SO32-) Price on request 94572 EPA Method 525.1 Standard Price on request