13C3-Nitrofurantoin, 5mg Back Catalog number: 679167 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 31784 EPA Method 1657 Analytes Price on request 678111 2,2,4-Trimethylpentane, 5ml Price on request 59081 Metals Mix #1 Price on request