Whatsapp/telegram/Signal : +852 63488702 Snapchat: lycreic7 [email protected] English name: Mefentanyl Molecular formula: C23H30N2O Molecular weight: 350.4971 Boiling point 472.8±38.0℃ (Forecast) Density 1.064±0.06 g/cm3 (Forecast) Acidity coefficient (pKa) 9.17±0.20 (Forecast) Quality manufacturers, service first, customer first, affordable, we have many other types of chemical products, if you need to contact us Application: Research chemicals Delivery time: within 2 days Ports: Beijing, Shanghai, Shenzhen, Hong Kong Purity: 99.9% Packing: 1 kg/aluminum foil bag Production capacity: 500kg/month Storage: Store in a cool, dry and well-ventilated place Payment method: Western Union, T/T, MONEY GRAM Shipping: TNT, UPS, DHL, FEDEX, EMS and customer requirements