776312-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 776312-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,6,3,1 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 776312-81:
(8*7)+(7*7)+(6*6)+(5*3)+(4*1)+(3*2)+(2*8)+(1*1)=183
183 % 10 = 3
So 776312-81-3 is a valid CAS Registry Number.