238090-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 238090-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,8,0,9 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 238090-56:
(8*2)+(7*3)+(6*8)+(5*0)+(4*9)+(3*0)+(2*5)+(1*6)=137
137 % 10 = 7
So 238090-56-7 is a valid CAS Registry Number.