372117-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 372117-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,2,1,1 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 372117-83:
(8*3)+(7*7)+(6*2)+(5*1)+(4*1)+(3*7)+(2*8)+(1*3)=134
134 % 10 = 4
So 372117-83-4 is a valid CAS Registry Number.