1780509-06-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1780509-06-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,7,8,0,5,0 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1780509-06:
(9*1)+(8*7)+(7*8)+(6*0)+(5*5)+(4*0)+(3*9)+(2*0)+(1*6)=179
179 % 10 = 9
So 1780509-06-9 is a valid CAS Registry Number.