775221-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 775221-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,5,2,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 775221-43:
(8*7)+(7*7)+(6*5)+(5*2)+(4*2)+(3*1)+(2*4)+(1*3)=167
167 % 10 = 7
So 775221-43-7 is a valid CAS Registry Number.