116631-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116631-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,6,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 116631-90:
(8*1)+(7*1)+(6*6)+(5*6)+(4*3)+(3*1)+(2*9)+(1*0)=114
114 % 10 = 4
So 116631-90-4 is a valid CAS Registry Number.