Hexachloro-1,3-butadiene, 100µg/mL in MeOH, 1ml

Endosulfan I

Caffeine-d3 (1-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 26351-03-1

2-Amino-4-hydroxybenzoic acid, 95%, 1g