Levulinic acid Back Catalog number: 72423 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9461.10-100K-ME Spermine, 100mg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 71-44-3 Price on request S-4460-2K-5ME ISO 15009 Stock Internal Standard Solution for Aromatic Hydrocarbons 2 Analytes, each 2000µg/mL in methanol; unit: 1x5mL 2253.7 Toluene-d8 [2037-26-5] 2171.8 Ethylbenzene-d10 [25837-05-2] Price on request 3546.11-10MG 2-Methyl-1,4-naphthoquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 58-27-5 Price on request