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212499-87-1

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212499-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212499-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,4,9 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 212499-87:
(8*2)+(7*1)+(6*2)+(5*4)+(4*9)+(3*9)+(2*8)+(1*7)=141
141 % 10 = 1
So 212499-87-1 is a valid CAS Registry Number.

212499-87-1Relevant articles and documents

Synthesis and testing of new modified nucleosides

Jung, Michael E.,Nichols, Christopher J.,Kretschik, Oliver,Xu, Yue

, p. 541 - 546 (1999)

New efficient routes for the high-yielding synthesis of several classes of modified nucleosides have been developed. We have prepared both the D- and L-enantiomers of the methylene-expanded oxetanocin isonucleosides 1a-c and the L-2',3'-dideoxy isonucleosides 2abc (both the oxa and thia analogues) as well as new routes for the preparation of L-ribose and 2-deoxy L-ribose 3ab and their modified nucleosides 4.

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