70938-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70938-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,3 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 70938-90:
(7*7)+(6*0)+(5*9)+(4*3)+(3*8)+(2*9)+(1*0)=148
148 % 10 = 8
So 70938-90-8 is a valid CAS Registry Number.