HEPES, Molecular Biology Grade (Free Acid), 100g

الوصف

HEPES is a biological buffer that functions over a pH range of 6.8 to 8.2. Formula Weight: 238.3. Appearance: white, crystalline powder. Purity: >=99.5 percent. Lead: <=5ppm. Iron: <=5ppm. Moisture: <=0.5 percent. pH at 25 degree C (1M): 5.0-6.5. A260 at 0.1M: <=0.05. A280 at 0.1M: <=0.04.