Wolfgang Uber - Yellow'ish Product

I have a syringe of Uber Ceramic coating; a little over 10cc is remaing. I've kept it away from extreme temps for the last 3 years and in a box. The product seems to have a yellow tint to it at this point. Nothing else is out of the ordinary. Is it still good?

Squirt a little out and see if it has gelled up. If not it should still be ok.

I didn't notice any gell'ing.... sadly my OptiCoat 2.0 gell'd up last year. :(

Thanks!!!