229308-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 229308-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,3,0 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 229308-70:
(8*2)+(7*2)+(6*9)+(5*3)+(4*0)+(3*8)+(2*7)+(1*0)=137
137 % 10 = 7
So 229308-70-7 is a valid CAS Registry Number.