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"Z(OMe)-Val-Cys(MBzl)-Ser-Gln-Lys(Z)-OH" is a peptide sequence consisting of six amino acids: Z(OMe)-Val (N-benzyloxycarbonyl-protected valine), Cys(MBzl) (N-benzyl-protected cysteine), Ser (serine), Gln (glutamine), Lys(Z) (N-benzyloxycarbonyl-protected lysine), and OH (hydroxyl group). This specific arrangement of amino acids is designed to protect certain functional groups, such as the amino and carboxyl groups, with benzyl-based protecting groups (Z and MBzl). These protections are crucial during peptide synthesis to prevent unwanted side reactions and ensure the correct formation of peptide bonds. The sequence is terminated with a hydroxyl group, indicating the presence of a free carboxyl group at the C-terminus. This peptide sequence is likely used in the synthesis of larger proteins or as a building block in pharmaceutical or biotechnological applications, where the controlled release of the protected amino acids is necessary for the proper folding and function of the final protein product.

77703-04-9

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77703-04-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77703-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,0 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77703-04:
(7*7)+(6*7)+(5*7)+(4*0)+(3*3)+(2*0)+(1*4)=139
139 % 10 = 9
So 77703-04-9 is a valid CAS Registry Number.

77703-04-9Relevant academic research and scientific papers

Total Synthesis of Bovine Pancreatic Ribonuclease A. Part 4. Synthesis of the Protected Tetraoctacontapeptide Ester (Positions 41-124)

Fujii, Nobutaka,Yajima, Haruaki

, p. 811 - 818 (2007/10/02)

Commencing with the protected hexapentacontapeptide corresponding to the sequence Z(OMe)-(69-124)-OBzl of bovine pancreatic RNase A, chain elongation was carried out to the tetraoctacontapeptide, Z(OMe)-(RNase 41-124)-OBzl, by seven successive azide conde

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