Dog Pheromones

I am in need of the pheromones of a nursing female dog.
I need sources, either natural or synthetic.
I am willing to pay for these. I need consistent supplies. I am willing to
contract for them.
Any help would be appreciated.
You may know of someone or a company that could help.

Thanking you in advance.

Note: I honestly don't feel this request is off-topic for this newsgroup,
but if you are bothered by it... rest assured, no harm is intended. I am
sorry.

Glenn Mouser