Perfluoro-n-[2,3,4-13C3]butanoic acid, 50µg/ml in MeOH, 1,2ml

2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid hydrate (contains 5-10% isopropyl alcohol), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 4065-45-6

Sulfur, 500µg/g (0.0500 wt%) in Diesel Fuel, 100ml

6-Methyl-1-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 24894-78-8