1256448-51-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1256448-51-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,4,4 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1256448-51:
(9*1)+(8*2)+(7*5)+(6*6)+(5*4)+(4*4)+(3*8)+(2*5)+(1*1)=167
167 % 10 = 7
So 1256448-51-7 is a valid CAS Registry Number.