159276-63-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159276-63-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,2,7 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 159276-63:
(8*1)+(7*5)+(6*9)+(5*2)+(4*7)+(3*6)+(2*6)+(1*3)=168
168 % 10 = 8
So 159276-63-8 is a valid CAS Registry Number.
159276-63-8Relevant articles and documents
Process for the preparation of 2,2,3,3-tetrafluoro-1,4-benzodioxanes, novel o-(2-bromo-1,1,2,2-tetrafluoroethoxy)-phenols, and novel 2-bromo-1,1,2,2-tetrafluoroethoxy-containing phenyl ethers
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, (2008/06/13)
The present invention is drawn to a process for preparing a 2,2,3,3-tetrafluoro-1,4-benzodioxane, by cyclocondensing a o-(2-bromo-tetrafluoroethoxy)-phenol in the presence of an acid binder.