PAN-Biotech Penicillin-Streptomycin (10,000 U/ml Penicillin, 10 mg/ml Streptomycin) for Cell Culture, 100 ml. COMPOSITION: Streptomycin sulfate: 10,000.00 mg/L; Sodium chloride: 8,500.00 mg/L; Penicillin G potassium salt: 10,000,000.00 Units/L. DESCRIPTION: PAN-Biotech Pen/Strep solution contains 10,000 U/ml Penicillin and 10 mg/ml Streptomycin. Penicillin and streptomycin antibiotics are used to prevent bacterial contamination of cell cultures to due their effective combined action against gram-positive and gram-negative bacteria. APPLICATION: Pen-Strep is used to supplement cell culture media (10 uL/ml) to control bacterial contamination. LIQUID/POWDER: Liquid. STERILE: Yes. STORAGE TEMP.: -20°C. MANUFACTURER: PAN-Biotech GmbH. COUNTRY OF ORIGIN: Germany. USAGE: For Laboratory Research Use Only. Not for use in diagnostic or therapeutic procedures.