438619-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438619-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,6,1 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 438619-17:
(8*4)+(7*3)+(6*8)+(5*6)+(4*1)+(3*9)+(2*1)+(1*7)=171
171 % 10 = 1
So 438619-17-1 is a valid CAS Registry Number.