137889-26-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137889-26-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,8 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 137889-26:
(8*1)+(7*3)+(6*7)+(5*8)+(4*8)+(3*9)+(2*2)+(1*6)=180
180 % 10 = 0
So 137889-26-0 is a valid CAS Registry Number.