How would one begin to mix up some Fatty Acid Scent c2-c8?

Do I need to buy all the various acids? Then experiment with mixing them? Then fix them with glycerine or mineral oil?

Just curious.

I bought mine from the depot in Pocatello that make stuff for the aphis boys

I haven't done a ton of research but I thought they only sold one FAS formulation. Im guessing from your post Centex they sell several different ones?
Ive got a paper written by Sherm Blom and he references FAS but speaks as there is only one available.

In one of sherms articles he gives the contact info for the depot. Just Google ahpis depot Pocatello and it will pop up. You will need to call them.

Authors in multiple articles seem to agree and stress that while the volatile, stinky, short-chained fatty acids are the most reliable component of warm-weather canine lures, true efficiency lies in various combinations of fatty acids and other chemicals (aldehydes, etc.) that are naturally present in attractive materials, or can mimic the naturally attractive combinations that exist in natural lures and baits (but due to the low content of the volatile substances that make lures and baits attractive, figuring out how to create saturated or enhanced concoctions is the right vector of research)

"The results of coyote attractant research conducted thus far indicate that organic fatty acids are a primary component of attractants for this species. They can be effective when used individually (decanoic acid) or in various combinations (i.e, CFA and FAS) to provide variety. Other chemical ompounds such as aldehydes, sulfides, phenols, methyl ketones, pyrazines and thiazoles can be used either individually or in combination with acids or each other to provide different attractants. Most natural attractants probably contain these compounds in various combinations."


or this:

“Surprisingly, there is no evidence that synthetic alternatives to conventional coyote attractants and baits have been developed through analyses of conventional attractants themselves. We designed the present experiments to address this gap. Rather than analyze commercial products developed for other purposes (such as fermented egg) or focus on only one class of compounds (such as FAS or TMAD) known to be present in food or in sexual or territorial scents, we aimed to identify volatile compounds in conventional coyote attractants. Our plan was then to apply this information to the formulation and behavioral testing of new synthetic attractants”


I'd find the available fatty acids and start from there, gradually adding stuff. This is what I've been doing with marten lures and it's very satisfying.

Thanks guys. The depth of knowledge of the trappers in this site never ceases to amaze me. I’ll call Idaho. Thanks.

All predators make a living upon what nature provides them. That can be wild or domestic game and the other fruits,vegetables and nuts that are seasonally available.

They aren't always very picky as to which they consume.

Developing lures and baits from those known available materials will produce good results. The addition of other ingredients to enhance those basic elements are what can make a meaningful difference in a product.

Also a key point to remember at times, is going back to a singular basic familiar odor can be the trick in some circumstances. Particularly on some hard pressed animals.

We have an interesting product here, developed in 1948 as a veterinary drug intended to stimulate the defensive responses of the body to stress and disease.

It is the dry distillation product of bone meal and comes in two forms, the ASD-F2 and ASD-F3, 2 is a lighter thinner fraction and 3 is a heavier resin-like fraction.

I probably won't be wrong if I say that the most common reason why people buy it nowadays is petty revenge, such as pouring some into the air intake of a neighbor with hopelessly bad parking habits. The smell is just.... legendary. like I said, it's literally a concentrated essence of dead flesh. They heat it in an oxygen-free environment until things begin to evaporate, and then collect the condensed volatile stuff and bottle it. It is MUCH more saturtated than what any kind of tincturing or fermenting could ever produce, and it's natural. The contents include ammonium salts of organic acids, amides, methylamine acetate (trimethylamine is the key substance in synthetic lures), methyl mercaptan (one of key the smells of death), cyclopentan, methyl urea, etc... ... very, very pungent, permeating, sulfuric, nitrous, rotten smell. I always wondered how it would perform as a canine lure ingredient, but we only have a few foxes here, and no coyotes. It would be very interesting to test it for its attraction to coyotes in the US. It occasionally appears on Amazon, and there are international suppliers that ship to the US.
https://www.kalinka-store.com/index.php?route=product/product&product_id=1115

I actually walked to the nearest pet store and bought both.

I worked at a hydro carbon storage facility when I was younger we had mercaptan on hand for odorizing propane. That stuff has some amazing properties. I always wanted to get my hands on some for lure testing. A friend once told me he would get me some but never did. Talk about an odor that naturally absorbs into everything and lasts forever.

mercaptans are not tenacious, they just have insanely low detection thesholds, so this impression that it lasts forever is because we have a sort of an absolute sense for it - if it's there even at 1 part per 10 billion, we'll sense it.

Same with geosmin,the substance that smells like dirt, pond scum and wet kitchen rags.

The main issue with mercaptans is they decay and mellow out pretty fast unless they're in a pure form and tightly sealed, and there are very few preservatives that can be used to improve it, especially in a mixture.

That would be interesting to see how it would work as a canine attractant. From your description it sounds like it would work and probably elicit a rolling response.