66519-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66519-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,5,1 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66519-18:
(7*6)+(6*6)+(5*5)+(4*1)+(3*9)+(2*1)+(1*8)=144
144 % 10 = 4
So 66519-18-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H11Br4O4P.K/c7-1-5(9)3-13-15(11,12)14-4-6(10)2-8;/h5-6H,1-4H2,(H,11,12);/q;+1