207401-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207401-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,4,0 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 207401-98:
(8*2)+(7*0)+(6*7)+(5*4)+(4*0)+(3*1)+(2*9)+(1*8)=107
107 % 10 = 7
So 207401-98-7 is a valid CAS Registry Number.