183964-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183964-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,6 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 183964-55:
(8*1)+(7*8)+(6*3)+(5*9)+(4*6)+(3*4)+(2*5)+(1*5)=178
178 % 10 = 8
So 183964-55-8 is a valid CAS Registry Number.