Norcocaine-13C6 hydrochloride Back Catalog number: 10329.17-100-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 679665 13C6-Mefenamic acid, 10mg Price on request 15422.4-100MG Butyric-d7 acid, 100mg Price on request 31784 EPA Method 1657 Analytes Price on request