Unfortunately, no. I am sure some exist, I just haven't tried any. I imagine any brand grape soda flavoring would yield similar results if there is a brand there that makes one? Otherwise I would look for a grape flavor that is like a sweet candied grape with artificial flavoring notes. I'm really sorry I can't help more :(
Yeah the SDS sheet wasn't on the website as it took you to the SDS sheet for the Citrus Soda so I emailed FW and they sent the SDS sheet to me, I avoid a lot of FW for the fact they contain corn/sugar syrup etc but many don't mind, I'm just extra careful as I'm type 1 xx