Tyrosine, 3,5-bis(1,1-dimethylethyl)-, methyl ester is a chemical compound with the molecular formula C14H23NO2. It is a derivative of the amino acid tyrosine, where the hydroxyl groups at the 3 and 5 positions are substituted with 1,1-dimethylethyl (tert-butyl) groups, and the carboxylic acid group is esterified with a methyl group. Tyrosine, 3,5-bis(1,1-dimethylethyl)-, methyl ester is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals, as well as a precursor for the production of other organic compounds. Its unique structure and properties make it a valuable building block in organic synthesis, particularly in the development of new drugs and other chemical products.
The CAS Registry Mumber 67739-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 67739-19: (7*6)+(6*7)+(5*7)+(4*3)+(3*9)+(2*1)+(1*9)=169 169 % 10 = 9 So 67739-19-9 is a valid CAS Registry Number.