1239781-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239781-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,7,8 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1239781-70:
(9*1)+(8*2)+(7*3)+(6*9)+(5*7)+(4*8)+(3*1)+(2*7)+(1*0)=184
184 % 10 = 4
So 1239781-70-4 is a valid CAS Registry Number.