1314640-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1314640-20-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,4,6,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1314640-20:
(9*1)+(8*3)+(7*1)+(6*4)+(5*6)+(4*4)+(3*0)+(2*2)+(1*0)=114
114 % 10 = 4
So 1314640-20-4 is a valid CAS Registry Number.
1314640-20-4Relevant articles and documents
Di- tert -butylisobutylsilyl, another useful protecting group
Liang, Huan,Hu, Lin,Corey
supporting information; experimental part, p. 4120 - 4123 (2011/10/04)
The di-tert-butylisobutylsilyl (BIBS) protecting group offers new possibilities for synthetic processes because of its steric bulk, robustness of its derivatives, and other special properties.