121779-82-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121779-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,7 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121779-82:
(8*1)+(7*2)+(6*1)+(5*7)+(4*7)+(3*9)+(2*8)+(1*2)=136
136 % 10 = 6
So 121779-82-6 is a valid CAS Registry Number.