1009769-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1009769-56-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,9,7,6 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1009769-56:
(9*1)+(8*0)+(7*0)+(6*9)+(5*7)+(4*6)+(3*9)+(2*5)+(1*6)=165
165 % 10 = 5
So 1009769-56-5 is a valid CAS Registry Number.