142438-58-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142438-58-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,4,3 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142438-58:
(8*1)+(7*4)+(6*2)+(5*4)+(4*3)+(3*8)+(2*5)+(1*8)=122
122 % 10 = 2
So 142438-58-2 is a valid CAS Registry Number.
InChI:InChI=1/C9H12O5/c1-4-8-5(2)13-7(11)9(8,14-8)6(10)12-3/h5H,4H2,1-3H3