929904-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 929904-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,9,9,0 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 929904-81:
(8*9)+(7*2)+(6*9)+(5*9)+(4*0)+(3*4)+(2*8)+(1*1)=214
214 % 10 = 4
So 929904-81-4 is a valid CAS Registry Number.