4-Methyl Propiophenone, also known as 4'-Methylpropiophenone or Pseudoephedrine, is an organic compound with the chemical formula C10H12O. It is a colorless to pale yellow liquid with a strong, pungent odor. This ketone is derived from the parent compound propiophenone by substituting one hydrogen atom on the benzene ring with a methyl group. 4-Methyl Propiophenone is primarily used as a precursor in the synthesis of various pharmaceuticals, including stimulants and decongestants. It is also employed as a chemical intermediate in the production of fragrances and flavorings. Due to its potential misuse in the illicit synthesis of methamphetamine, it is regulated in many countries.
The CAS Registry Mumber 537-93-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 7 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 537-93: (5*5)+(4*3)+(3*7)+(2*9)+(1*3)=79 79 % 10 = 9 So 537-93-9 is a valid CAS Registry Number.