637326-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637326-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,2 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 637326-17:
(8*6)+(7*3)+(6*7)+(5*3)+(4*2)+(3*6)+(2*1)+(1*7)=161
161 % 10 = 1
So 637326-17-1 is a valid CAS Registry Number.