278609-52-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 278609-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,8,6,0 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 278609-52:
(8*2)+(7*7)+(6*8)+(5*6)+(4*0)+(3*9)+(2*5)+(1*2)=182
182 % 10 = 2
So 278609-52-2 is a valid CAS Registry Number.