293751-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 293751-38-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,3,7,5 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 293751-38:
(8*2)+(7*9)+(6*3)+(5*7)+(4*5)+(3*1)+(2*3)+(1*8)=169
169 % 10 = 9
So 293751-38-9 is a valid CAS Registry Number.
293751-38-9Relevant articles and documents
IMPROVED SYNTHESIS OF ?2.2.1|BICYCLO NUCLEOSIDES
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Page/Page column 20; 41, (2008/06/13)
A synthesis of [2.2.1]bicyclo nucleosides which is shorter and provides higher overall yields proceeds via the key intermediate of the general formula III, wherein R4 and R5 are, for instance, sulfonates and R7 is, for instance, a halogen or an acetate. F