256352-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256352-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,5 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 256352-19:
(8*2)+(7*5)+(6*6)+(5*3)+(4*5)+(3*2)+(2*1)+(1*9)=139
139 % 10 = 9
So 256352-19-9 is a valid CAS Registry Number.