Siduron Back Catalog number: 70833 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2553.6-K-ME 2-Ethoxyethyl acetate,1000 µg/mL,MeOH,1mL Price on request 98131 EPA Method 8141 Standard Rev 1 Price on request 56203 Lithium (Li) Price on request