70349-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70349-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,4 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 70349-90:
(7*7)+(6*0)+(5*3)+(4*4)+(3*9)+(2*9)+(1*0)=125
125 % 10 = 5
So 70349-90-5 is a valid CAS Registry Number.