1298100-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1298100-56-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,8,1,0 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1298100-56:
(9*1)+(8*2)+(7*9)+(6*8)+(5*1)+(4*0)+(3*0)+(2*5)+(1*6)=157
157 % 10 = 7
So 1298100-56-7 is a valid CAS Registry Number.