Alanine and phenylalanine are two essential amino acids that play crucial roles in various biological processes. Alanine, with the chemical formula C3H7NO2, is a nonpolar amino acid that is involved in the synthesis of proteins, glucose production, and the regulation of the central nervous system. Phenylalanine, on the other hand, has the chemical formula C9H11NO2 and is an aromatic amino acid that is essential for the production of neurotransmitters, such as dopamine, norepinephrine, and epinephrine. Both amino acids are vital for maintaining proper bodily functions and overall health, and they must be obtained through diet since the human body cannot synthesize them on its own.
The CAS Registry Mumber 3918-86-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,1 and 8 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 3918-86: (6*3)+(5*9)+(4*1)+(3*8)+(2*8)+(1*6)=113 113 % 10 = 3 So 3918-86-3 is a valid CAS Registry Number.