547765-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 547765-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,7,7,6 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 547765-63:
(8*5)+(7*4)+(6*7)+(5*7)+(4*6)+(3*5)+(2*6)+(1*3)=199
199 % 10 = 9
So 547765-63-9 is a valid CAS Registry Number.