109947-62-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109947-62-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,4 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109947-62:
(8*1)+(7*0)+(6*9)+(5*9)+(4*4)+(3*7)+(2*6)+(1*2)=158
158 % 10 = 8
So 109947-62-8 is a valid CAS Registry Number.
109947-62-8Relevant articles and documents
METHYLENATION OF ALDONOLACTONES
Csuk, Rene,Glaenzer, Brigitte I.
, p. 1655 - 1664 (2007/10/02)
Convenient access to carbohydrates possessing an exo-methylene group adjacent to the ring oxygen at C-1 can be achieved by direct methylenation of aldonolactones with dicyclopentadienyldimethyltitanium.