207916-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207916-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,9,1 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 207916-99:
(8*2)+(7*0)+(6*7)+(5*9)+(4*1)+(3*6)+(2*9)+(1*9)=152
152 % 10 = 2
So 207916-99-2 is a valid CAS Registry Number.