28458-24-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28458-24-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,4,5 and 8 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28458-24:
(7*2)+(6*8)+(5*4)+(4*5)+(3*8)+(2*2)+(1*4)=134
134 % 10 = 4
So 28458-24-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H18O7/c1-8-3-2-4-14(27-8)17-13(23)7-11-16(20(17)26)19(25)15-10(18(11)24)5-9(21)6-12(15)22/h5-8,14,21-23,26H,2-4H2,1H3/t8-,14-/m0/s1