N,N-phthaloyl-L-alanine-(4-nitro-phenyl ester) is a synthetic chemical compound with the molecular formula C18H14N4O6. It is a derivative of L-alanine, an amino acid, where the amino group is acylated with phthalic anhydride, and the carboxylic acid group is esterified with 4-nitrophenol. N,N-phthaloyl-L-alanine-(4-nitro-phenyl ester) is often used in peptide synthesis as a protected amino acid, allowing for the controlled formation of peptide bonds in the presence of other functional groups. The 4-nitrophenyl ester group serves as a protecting group for the carboxylic acid, which can be removed under mild conditions to regenerate the free carboxylic acid, facilitating further reactions in peptide chain elongation. The compound's structure and reactivity make it a valuable tool in organic chemistry and biochemistry, particularly in the synthesis of complex peptide sequences.
The CAS Registry Mumber 3401-39-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,0 and 1 respectively; the second part has 2 digits, 3 and 9 respectively. Calculate Digit Verification of CAS Registry Number 3401-39: (6*3)+(5*4)+(4*0)+(3*1)+(2*3)+(1*9)=56 56 % 10 = 6 So 3401-39-6 is a valid CAS Registry Number.