16893-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16893-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,9 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16893-25:
(7*1)+(6*6)+(5*8)+(4*9)+(3*3)+(2*2)+(1*5)=137
137 % 10 = 7
So 16893-25-7 is a valid CAS Registry Number.