EPA Method 515.3 - Derivatized acids Back Catalog number: 30151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MET-11455A-100MG 1-(3-Chloro-4-methylphenyl)-3-methylurea, 100mg Price on request 9479.7-100K-ME Spermidine, 100mg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 124-20-9 Price on request 72244 Ranitidine, 1000µg/mL in MeOH, 1ml Price on request