1178887-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1178887-21-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,8,8,8 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1178887-21:
(9*1)+(8*1)+(7*7)+(6*8)+(5*8)+(4*8)+(3*7)+(2*2)+(1*1)=212
212 % 10 = 2
So 1178887-21-2 is a valid CAS Registry Number.