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The chemical sequence "Z(OMe)-Asp(OBzl)-Cys(MBzl)-Arg(MBS)-Glu(OBzl)-Thr-Gly-NHNH-Troc" represents a peptide with a specific arrangement of amino acids and protective groups. Z(OMe) denotes a carbobenzoxy group (Cbz) with a methoxy group, protecting the N-terminus. Asp(OBzl) is aspartic acid with a benzyl ester protecting group, Cys(MBzl) is cysteine with a benzyl group protecting the thiol side chain, Arg(MBS) is arginine with a 4-methylbenzenesulfonyl (MBS) group protecting the guanidinium group, and Glu(OBzl) is glutamic acid with a benzyl ester protecting group. The sequence continues with Thr (threonine), Gly (glycine), and ends with NHNH, indicating a free amine group at the C-terminus. Troc is the trityl-based protecting group for the terminal amine. This peptide is likely used in synthetic organic chemistry, particularly in the synthesis of larger peptides or proteins, where the protective groups are strategically placed to prevent unwanted side reactions until the desired step in the synthesis process.

77693-86-8

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77693-86-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77693-86-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,9 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77693-86:
(7*7)+(6*7)+(5*6)+(4*9)+(3*3)+(2*8)+(1*6)=188
188 % 10 = 8
So 77693-86-8 is a valid CAS Registry Number.

77693-86-8Relevant academic research and scientific papers

Total Synthesis of Bovine Pancreatic Ribonuclease A. Part 3. Synthesis of the Protected Hexapentacontapeptide Ester (Positions 69-124)

Fujii, Nobutaka,Yajima, Haruaki

, p. 804 - 810 (1981)

Commencing with the protected hexatriacontapeptide, corresponding to the sequence of bovine pancreatic RNase A, Z(OMe)-(RNase 89-124)-OBzl, chain elongation was carried out to the hexapentacontapeptide stage, Z(OMe)-(RNase 69-124)-OBzl, by six successive

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