I posted some time ago about trying to avoid additives and E numbers in the food and drink we're feeding to our kids. It's not easy. Cordial, especially orange, is one of the worst offenders.
We've started buying organic cordials from Rocks Organics including their children specific Olly Orange Juice and Bella Blackcurrant Juice.
The flavours are not as intense as "normal" cordial but all the better for it and our kids love it.