221687-36-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221687-36-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,8 and 7 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 221687-36:
(8*2)+(7*2)+(6*1)+(5*6)+(4*8)+(3*7)+(2*3)+(1*6)=131
131 % 10 = 1
So 221687-36-1 is a valid CAS Registry Number.
221687-36-1Relevant articles and documents
Protecting and linking groups for organic synthesis on solid supports
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Page column 23-24, (2008/06/13)
This invention relates to methods for synthesis of organic compounds, and in particular to compounds useful as protecting and linking groups for use in the synthesis of peptides, oligosaccharides, glycopeptides and glycolipids. The invention provides prot
