207281-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207281-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,2,8 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 207281-51:
(8*2)+(7*0)+(6*7)+(5*2)+(4*8)+(3*1)+(2*5)+(1*1)=114
114 % 10 = 4
So 207281-51-4 is a valid CAS Registry Number.