4955-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4955-87-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,5 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4955-87:
(6*4)+(5*9)+(4*5)+(3*5)+(2*8)+(1*7)=127
127 % 10 = 7
So 4955-87-7 is a valid CAS Registry Number.