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"S-Benzyl-N-benzyloxycarbonyl-L-thiocysteine S-phenyl ester" is a complex organic compound with the molecular formula C25H25NO3S2. It is a derivative of the amino acid cysteine, where the thiol group (-SH) is replaced by a phenyl ester group, and the amino group is protected by a benzyloxycarbonyl (Z) group. S-benzyl-N-benzyloxycarbonyl-L-thiocysteine S-phenyl ester is often used in peptide synthesis as a building block due to its protected nature, which allows for controlled coupling reactions in the synthesis of larger peptide chains. The benzyl group on the thiol and the benzyloxycarbonyl group on the amino acid help prevent unwanted side reactions, such as oxidation or unwanted coupling, until the desired peptide sequence is formed. Once the peptide is synthesized, these protecting groups can be removed under specific conditions to yield the final product.

5276-81-3

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5276-81-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5276-81-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,7 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5276-81:
(6*5)+(5*2)+(4*7)+(3*6)+(2*8)+(1*1)=103
103 % 10 = 3
So 5276-81-3 is a valid CAS Registry Number.
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