1211578-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1211578-98-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,1,5,7 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1211578-98:
(9*1)+(8*2)+(7*1)+(6*1)+(5*5)+(4*7)+(3*8)+(2*9)+(1*8)=141
141 % 10 = 1
So 1211578-98-1 is a valid CAS Registry Number.