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181637-40-1

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181637-40-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181637-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,6,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 181637-40:
(8*1)+(7*8)+(6*1)+(5*6)+(4*3)+(3*7)+(2*4)+(1*0)=141
141 % 10 = 1
So 181637-40-1 is a valid CAS Registry Number.

181637-40-1Relevant articles and documents

The stereospecific synthesis of 'orthogonally' protected lanthionines

Swali, Vinay,Matteucci, Mizio,Elliot, Richard,Bradley, Mark

, p. 9101 - 9109 (2002)

Lanthionine is an attractive monomer for the design and synthesis of novel conformationally constrained peptidomimetics, since unlike cystine, the monosulfur bridge of lanthionine is chemically far more robust and also displays a greater degree of conformational rigidity. The synthesis of lanthionine residues for use in peptide synthesis is non-trivial due to the protectional requirements necessary for this tetra-functional amino acid. In this paper an efficient stereo-specific route to orthogonally protected lanthionine is described.

Stereoconservative synthesis of orthogonally protected γ-functionalized amino acids using N-tritylserine derivatives

Dugave, Christophe,Menez, Andre

, p. 6067 - 6070 (2007/10/03)

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