1228178-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228178-29-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,1,7 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1228178-29:
(9*1)+(8*2)+(7*2)+(6*8)+(5*1)+(4*7)+(3*8)+(2*2)+(1*9)=157
157 % 10 = 7
So 1228178-29-7 is a valid CAS Registry Number.