250681-85-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 250681-85-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,6,8 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 250681-85:
(8*2)+(7*5)+(6*0)+(5*6)+(4*8)+(3*1)+(2*8)+(1*5)=137
137 % 10 = 7
So 250681-85-7 is a valid CAS Registry Number.