904747-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 904747-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,4,7,4 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 904747-87:
(8*9)+(7*0)+(6*4)+(5*7)+(4*4)+(3*7)+(2*8)+(1*7)=191
191 % 10 = 1
So 904747-87-1 is a valid CAS Registry Number.