123621-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123621-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,6,2 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123621-80:
(8*1)+(7*2)+(6*3)+(5*6)+(4*2)+(3*1)+(2*8)+(1*0)=97
97 % 10 = 7
So 123621-80-7 is a valid CAS Registry Number.