854638-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854638-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,6,3 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 854638-72:
(8*8)+(7*5)+(6*4)+(5*6)+(4*3)+(3*8)+(2*7)+(1*2)=205
205 % 10 = 5
So 854638-72-5 is a valid CAS Registry Number.