Efavirenz-13C6 Back Catalog number: 10612.14-1MG Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 98863 Formaldehyde-DNPH Level 6 (10ug/mL) Price on request 52107 WS Anions - Cal Check Price on request 82511 EPA Method 8150 - Analytes Price on request