250207-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 250207-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,2,0 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 250207-21:
(8*2)+(7*5)+(6*0)+(5*2)+(4*0)+(3*7)+(2*2)+(1*1)=87
87 % 10 = 7
So 250207-21-7 is a valid CAS Registry Number.