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Z-D-Ala-L-HyIv-OtBu is a synthetic peptide consisting of four amino acids: Z (a protecting group), D-Ala (D-alanine), L-HyIv (L-hydroxyisovaline), and OtBu (a protecting group). Z-D-Ala-L-HyIv-OtBu is often used in the synthesis of antibiotics, particularly in the production of semi-synthetic penicillins and cephalosporins. The Z group and OtBu group are temporary protecting groups that shield the peptide bonds from unwanted reactions during the synthesis process. Once the desired antibiotic structure is achieved, these protecting groups are removed to reveal the active drug. The D-Ala and L-HyIv components are crucial for the antibiotic's activity, as they contribute to the overall structure and function of the final product. In summary, Z-D-Ala-L-HyIv-OtBu is a key intermediate in the synthesis of certain antibiotics, with its amino acid composition and protecting groups playing essential roles in the production process.

31509-04-3

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31509-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31509-04-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,0 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31509-04:
(7*3)+(6*1)+(5*5)+(4*0)+(3*9)+(2*0)+(1*4)=83
83 % 10 = 3
So 31509-04-3 is a valid CAS Registry Number.
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