Add time:07/24/2019         Source:sciencedirect.com

6-Demethyltetracycline, when heated with nitric acid, forms a stable colored derivative having an absorption maximum at 425 mμ. 6-Demethylchlortetracycline under the same condition is unstable. When 6-demethylchlortetracycline is heated with nitric acid, the color produced by the 6-demethyltetracycline fraction can be measured directly or extracted with n-butanol.

We also recommend Trading Suppliers and Manufacturers of demethylchlortetracycline (cas 106276-91-9). Pls Click Website Link as below: cas 106276-91-9 suppliers