1644-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1644-73-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1644-73:
(6*1)+(5*6)+(4*4)+(3*4)+(2*7)+(1*3)=81
81 % 10 = 1
So 1644-73-1 is a valid CAS Registry Number.
1644-73-1Relevant articles and documents
Organic fluorides from fluoroformic esters
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, (2008/06/13)
A method for the preparation of an organic fluoride by contacting a fluoroformic acid ester with alumina at a temperature in the range 200°-600° C.