77715-46-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77715-46-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,1 and 5 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77715-46:
(7*7)+(6*7)+(5*7)+(4*1)+(3*5)+(2*4)+(1*6)=159
159 % 10 = 9
So 77715-46-9 is a valid CAS Registry Number.