398156-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 398156-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,8,1,5 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 398156-41:
(8*3)+(7*9)+(6*8)+(5*1)+(4*5)+(3*6)+(2*4)+(1*1)=187
187 % 10 = 7
So 398156-41-7 is a valid CAS Registry Number.