785764-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 785764-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,5,7,6 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 785764-80:
(8*7)+(7*8)+(6*5)+(5*7)+(4*6)+(3*4)+(2*8)+(1*0)=229
229 % 10 = 9
So 785764-80-9 is a valid CAS Registry Number.