165524-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165524-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,5,2 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 165524-52:
(8*1)+(7*6)+(6*5)+(5*5)+(4*2)+(3*4)+(2*5)+(1*2)=137
137 % 10 = 7
So 165524-52-7 is a valid CAS Registry Number.