70238-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70238-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,3 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 70238-40:
(7*7)+(6*0)+(5*2)+(4*3)+(3*8)+(2*4)+(1*0)=103
103 % 10 = 3
So 70238-40-3 is a valid CAS Registry Number.