you can try oxi clean it is supposed to get rid of pet stains and is a very versatile cleaner when mixed appropriately.

I have used it on pet stains on carpets and all sorts of other stuff, including, getting oil off my driveway that spilled when changing the oil.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon - Sold
2006 E350 Wagon - 368 - Dead
2015 GL350 Bluetec - 197U