The ritual of the Red Heifer is one of the most mysterious rituals in the entire Torah. (I have no doubt that this first sentence has been written many times before, but the ritual is so mysterious — ...

In 2018, a nitrosamine impurity (N-nitrosodimethylamine or “NDMA”) was detected in several pharmaceutical drugs containing the active ingredient valsartan, which resulted in a voluntary product recall ...

Presently ICH M7 and other guidelines give an overview of evaluation and assessment of limits of pharmaceutical impurities categorized as mutagenic. These could be degradation products of ...

Having intelligent analytical tools can advance the detection of unknown impurities, which is important for ensuring small-molecule ingredient purity. The United States Pharmacopeia (USP) defines an ...

I ate something which might not be halal.l and now I an worried about the validity of my prayers Is non halal meat najis? What if it had pork? I have also eaten pork when I think I probably wasn't ...

Chemical purity is the most important quality characteristic of a pharmaceutical substance. This article describes the latest scientific and technological advances to meet recent pharmacopoeial and ...

Usage: Reference standards serve as quality control benchmarks for equipment calibration and verification of measurement methods and analytical accuracy. Characteristics: Chemicals with established ...

Pharmaceutical process chemists want to make the compound, the whole compound, and nothing but the compound. They know, however, that chemistry isn’t that simple and that a multistep synthesis often ...