187409-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187409-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,4,0 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 187409-52:
(8*1)+(7*8)+(6*7)+(5*4)+(4*0)+(3*9)+(2*5)+(1*2)=165
165 % 10 = 5
So 187409-52-5 is a valid CAS Registry Number.