Azorubin (E 122), 1g

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.

1,3,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Ruthenium (Ru)