1211758-67-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1211758-67-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,1,7,5 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1211758-67:
(9*1)+(8*2)+(7*1)+(6*1)+(5*7)+(4*5)+(3*8)+(2*6)+(1*7)=136
136 % 10 = 6
So 1211758-67-6 is a valid CAS Registry Number.