121356-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121356-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,3,5 and 6 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121356-98:
(8*1)+(7*2)+(6*1)+(5*3)+(4*5)+(3*6)+(2*9)+(1*8)=107
107 % 10 = 7
So 121356-98-7 is a valid CAS Registry Number.