70689-36-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70689-36-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,8 and 9 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 70689-36:
(7*7)+(6*0)+(5*6)+(4*8)+(3*9)+(2*3)+(1*6)=150
150 % 10 = 0
So 70689-36-0 is a valid CAS Registry Number.
70689-36-0Relevant articles and documents
ISOMERIZATION OF tert-BUTYLDIMETHYLSILYL PROTECTING GROUPS IN RIBONUCLEOSIDES
Ogilvie, Kelvin K.,Entwistle, Douglas W.
, p. 203 - 210 (1981)
The tert-butyldimethylsilyl group undergoes isomerization between O-2' and O-3' in ribonucleosides in solution.Isomerization is most rapid in protic solvents and extremely slow in such solvents as dry dimethyl sulfoxide, pyridine, oxolane, chloroform, or