129780-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129780-67-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,8 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129780-67:
(8*1)+(7*2)+(6*9)+(5*7)+(4*8)+(3*0)+(2*6)+(1*7)=162
162 % 10 = 2
So 129780-67-2 is a valid CAS Registry Number.