Today we compared a new batch of Sofosbuvir and Ledipasvir to our reference sample data and found it consistent.
It's reassuring to see the consistency.
We were quite excited to see the first shipment of Chinese sourced Sofosbuvir and Ledipasvir. A white powder and and off white powder, but what would the NMR show? Here's the NMR for Sofosbuvir which is right on the money.
Ledipasvir: mass [M+H] + 889.4195 ( < 2 ppm error)
- molecular formula - C49H54F2N8O6
Sofosbuvir: mass [M+H] + 530.1699 ( < 0.2 ppm error)
- molecular formula - C22H29FN3O9P