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"Z-D-Leu-L-Ala-D-Val-L-Val-D-Val-OCH3" is a complex peptide compound consisting of a sequence of amino acids and a protecting group. The "Z" group is a benzyloxycarbonyl (Cbz) protecting group, which is commonly used in peptide synthesis to prevent unwanted side reactions. The sequence of amino acids is as follows: D-Leucine (D-Leu), L-Alanine (L-Ala), D-Valine (D-Val), L-Valine (L-Val), and D-Valine (D-Val) again. The presence of both D (Dextro) and L (Levo) isomers in the sequence indicates that it is a mixture of chiral amino acids, which is typical for many biologically active peptides. The "OCH3" at the end represents a methoxy group, which is often used as a terminal protecting group in peptide synthesis. Z-D-Leu-L-Ala-D-Val-L-Val-D-Val-OCH3 is likely used in the synthesis of larger peptides or as a building block for pharmaceuticals, given its protected nature and the specific arrangement of amino acids.

2290-18-8

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2290-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2290-18-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,9 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2290-18:
(6*2)+(5*2)+(4*9)+(3*0)+(2*1)+(1*8)=68
68 % 10 = 8
So 2290-18-8 is a valid CAS Registry Number.

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