251538-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251538-75-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,5,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 251538-75:
(8*2)+(7*5)+(6*1)+(5*5)+(4*3)+(3*8)+(2*7)+(1*5)=137
137 % 10 = 7
So 251538-75-7 is a valid CAS Registry Number.