223776-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223776-50-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,7 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223776-50:
(8*2)+(7*2)+(6*3)+(5*7)+(4*7)+(3*6)+(2*5)+(1*0)=139
139 % 10 = 9
So 223776-50-9 is a valid CAS Registry Number.