1203469-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1203469-67-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,4,6 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1203469-67:
(9*1)+(8*2)+(7*0)+(6*3)+(5*4)+(4*6)+(3*9)+(2*6)+(1*7)=133
133 % 10 = 3
So 1203469-67-3 is a valid CAS Registry Number.
1203469-67-3Relevant articles and documents
Synthesis of ansa1-cytidines
Krolikiewicz, Konrad,Schaefer, Martina,Vorbrueggen, Helmut
experimental part, p. 695 - 712 (2010/09/18)
The synthesis of new ansa1-N45-ethylene cytidines such as 3-ss-D-ribofuranosyl-3,5,6,7-tetrahydro-2H-pyrrolo[2,3-d]pyrimidin-2-one is described and the problems connected with the ring closure to the desired tetrahydro-2H-pyrrolo[2,3-d]pyrimidine base dis