852568-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 852568-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,5,6 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 852568-71:
(8*8)+(7*5)+(6*2)+(5*5)+(4*6)+(3*8)+(2*7)+(1*1)=199
199 % 10 = 9
So 852568-71-9 is a valid CAS Registry Number.
852568-71-9Relevant articles and documents
Mannich-type C-nucleosidations with 7-carba-purines and 4-aminopyrimidines
Han, Bo,Rajwanshi, Vivek,Nandy, Jyoti,Krishnamurthy, Ramanarayanan,Eschenmoser, Albert
, p. 744 - 750 (2007/10/03)
Regioselective Mannich-type C-nucleosidations of pyrroline derivatives 3 and 8 with 7-carba-purines and 4-aminopyrimidines occur under mild conditions to afford C(8)- and C(5)-azanucleosides, respectively.