1218-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1218-29-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,1 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1218-29:
(6*1)+(5*2)+(4*1)+(3*8)+(2*2)+(1*9)=57
57 % 10 = 7
So 1218-29-7 is a valid CAS Registry Number.