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"Z-Ile-Ser-(Tos)-Leu-OBut" is a peptide compound consisting of five amino acids: Isoleucine (Ile), Serine (Ser), Tosyl-protected Leucine (Leu), and tert-Butyl-protected Leucine (Leu). The "Z" group is a protecting group for the N-terminus, which prevents unwanted side reactions during peptide synthesis. The "Tos" group is a tosyl (tosyl chloride) protecting group for the side chain of the leucine residue, while the "OBut" group is a tert-butyl protecting group for the side chain of another leucine residue. This specific sequence and protection scheme are crucial for the controlled synthesis of larger peptides or proteins, ensuring that each amino acid is added in the correct order and that the side chains remain protected until the final stages of the synthesis process.

75816-49-8

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75816-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75816-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,8,1 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75816-49:
(7*7)+(6*5)+(5*8)+(4*1)+(3*6)+(2*4)+(1*9)=158
158 % 10 = 8
So 75816-49-8 is a valid CAS Registry Number.

75816-49-8Downstream Products

75816-49-8Relevant academic research and scientific papers

Lanthionine Chemistry. Part 5. Synthesis of Cyclic Non-symmetrical Lanthionyl Peptides

Photaki, Iphigenia,Caranikas, Stephanos,Samouilidis, Ioannis,Zervas, Leonidas

, p. 1965 - 1970 (2007/10/02)

The synthesis of a protected fragment of the antibiotic nisin, specifically Nα-benzyloxycarbonyl-D-hemilanthionyl-L-isoleucyldehydroalanyl-L-leucyl-L-hemilanthionine α'-methyl ester (B) and of its analogue Nα-benzyloxycarbonyl-L-hemi

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