139089-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139089-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,8 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139089-55:
(8*1)+(7*3)+(6*9)+(5*0)+(4*8)+(3*9)+(2*5)+(1*5)=157
157 % 10 = 7
So 139089-55-7 is a valid CAS Registry Number.