Group I Elements Starter Kit Back Catalog number: 52253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3952.3-K-ME 1,1-Dichloropropene,1000 µg/mL,MeOH,1mL, Price on request 0886.13-500-IO 2-Methyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20928-02-3 Price on request PEO-003S 4-tert-Octylphenol, 100µg/ml in MeOH, 1ml Price on request