Tyrosine, 3,5-bis(1,1-dimethylethyl)-, also known as 3,5-di-tert-butyltyrosine, is a synthetic derivative of the amino acid tyrosine. Tyrosine, 3,5-bis(1,1-dimethylethyl)- is characterized by the presence of two tert-butyl groups (1,1-dimethylethyl) attached to the 3 and 5 positions of the tyrosine molecule. The addition of these bulky, non-polar groups can significantly alter the chemical and physical properties of the parent compound, such as solubility, reactivity, and stability. In the context of pharmaceuticals and chemical research, 3,5-di-tert-butyltyrosine may be used to study the effects of structural modifications on the biological activity of tyrosine-containing peptides and proteins, or as a building block in the synthesis of more complex molecules.
The CAS Registry Mumber 67739-15-5 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 5 respectively. Calculate Digit Verification of CAS Registry Number 67739-15: (7*6)+(6*7)+(5*7)+(4*3)+(3*9)+(2*1)+(1*5)=165 165 % 10 = 5 So 67739-15-5 is a valid CAS Registry Number.