Which products will produce when acetic anhydride reacts
with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
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Dear Sir, This is Thirunavukkarasu am working in Ordain Health Care AR&D, Am Having one problem While doing method development my question Metadoxine and Pyridoxine same chemical nature and structural activity i tried lot of methods but Analyte eluted same Retantion time i cant separate both peaks. solubility, pH both are same only only difference melting point metadoxine 210 C Pyridoxine 102 C please do the help needful for me
What is differences between the Instrument and Equipment
which detector is used in IR
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
How to fix the sample concentration in related substances development.
3 Answers Novartis, Watson Pharmaceuticals,
In chromatograpbic purity 90% is there, in assay 70% is there. How will you prove remaining 30%.
Why we check moisture,ash & AIA in product
How to prepare 10% HCl from 36.5% HCl solution.
What are the concentration limit for class-1 residual solvents in ICH ?
if you get peak in blank then what require to do?
what is the difference between hplc and uplc?
5 Answers Fresenius Kabi, Mylan,