291761-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291761-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,7,6 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 291761-05:
(8*2)+(7*9)+(6*1)+(5*7)+(4*6)+(3*1)+(2*0)+(1*5)=152
152 % 10 = 2
So 291761-05-2 is a valid CAS Registry Number.