TFA*H2N-Gly-OC2H5, also known as trifluoroacetic acid (TFA) glycine ethyl ester, is a chemical compound that consists of a glycine molecule with an ethyl ester group attached to the carboxylic acid end and a trifluoroacetic acid (TFA) group attached to the amino end. TFA*H2N-Gly-OC2H5 is often used in peptide synthesis as a protecting group for the amino group, which helps prevent unwanted side reactions during the formation of peptide bonds. The TFA group can be easily removed under mild acidic conditions, allowing for the subsequent coupling of the glycine residue to other amino acids in the peptide chain. The ethyl ester group at the other end of the glycine molecule can also be removed under basic conditions, which is useful for the final deprotection step in peptide synthesis. Overall, TFA*H2N-Gly-OC2H5 is a versatile building block in the synthesis of peptides and proteins, facilitating the controlled assembly of these biologically important molecules.
The CAS Registry Mumber 353-90-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,5 and 3 respectively; the second part has 2 digits, 9 and 0 respectively. Calculate Digit Verification of CAS Registry Number 353-90: (5*3)+(4*5)+(3*3)+(2*9)+(1*0)=62 62 % 10 = 2 So 353-90-2 is a valid CAS Registry Number.