212778-69-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212778-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,7,7 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 212778-69:
(8*2)+(7*1)+(6*2)+(5*7)+(4*7)+(3*8)+(2*6)+(1*9)=143
143 % 10 = 3
So 212778-69-3 is a valid CAS Registry Number.