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N-benzyloxycarbonyl-DL-leucine cyanomethyl ester is a synthetic chemical compound with the molecular formula C16H20N2O4. It is a derivative of leucine, an essential amino acid, and is commonly used in peptide synthesis as a protected amino acid. The N-benzyloxycarbonyl (Z) group is a protecting group for the amino group, while the cyanomethyl ester (OCNCH2) is a protecting group for the carboxylic acid group. N-benzyloxycarbonyl-DL-leucine cyanomethyl ester is particularly useful in the synthesis of peptides, as it allows for the stepwise addition of amino acids while preventing unwanted side reactions. The Z group can be removed under mild acidic conditions, and the cyanomethyl ester can be hydrolyzed to regenerate the free carboxylic acid, facilitating the formation of peptide bonds.

4821-82-3

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4821-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4821-82-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,2 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4821-82:
(6*4)+(5*8)+(4*2)+(3*1)+(2*8)+(1*2)=93
93 % 10 = 3
So 4821-82-3 is a valid CAS Registry Number.

4821-82-3Relevant academic research and scientific papers

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