Citrate-Extraction-Mix Back Catalog number: 674481 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 11629.38-50MG Azithromycin dihydrate,neat,neat,50mg, Price on request 82503 EPA Method 8250/8250A - Analytes Mix #11 Price on request 93172 Pesticide Mix #1 Price on request