172378-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172378-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,3,7 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 172378-65:
(8*1)+(7*7)+(6*2)+(5*3)+(4*7)+(3*8)+(2*6)+(1*5)=153
153 % 10 = 3
So 172378-65-3 is a valid CAS Registry Number.