Would it work?
On the topic of acquisition through legal entities.  Since the intermediates are not specifically scheduled, take for example chlorosafrole  , but would be considered an unlisted precursor (meaning it might go through, but they are going to be watching the address no doubt) that would prove working with a supplier to be very difficult.   
I would venture so far as to say that someone could find a supplier willing to sell it, and that it would be delivered successfully.
But! That is not the question.       Is there anything -legally speaking- that customs can do, since it is neither scheduled nor is listed specifically if it was ordered to an appropriate business entity. 

Note that they listed "and their salts" and I thought chlorosafrole is a derivative not an intermediate??

Also you appear to be under the illusion that the DEA/Customs etc has to follow rules.  They do what they want, when they want.

p.s. I didnt think Chlorosafrole was a salt of safrole in that the Cl is non ionically bound? Do I need to stretch my definition here?

Chlorosafrole is definitely not a salt of safrole

The definition is what ever the court ( expert witness ) gets paid to say it is..
This is just one example of what I am getting at, those who read between the lines should be able to see how to use this bit of information constructively.
I think it is a valid point that they don't have to follow any rules, and are essentially over the law. It changes how I see things anyhow.

Also remember that since 9/11 not only have the barriers stopping police been knocked down, but the technology available to them has grown.  There are numerous security firms in Isreal that write software to identify suspicious internet activity and they operate at the speed of light.  Read this
http://en.wikipedia.org/wiki/Computer_surveillance

Computer surveillance programs are widespread today, and almost all Internet traffic is closely monitored for clues of illegal activity.

And also, Cops on that level are good.  If you get into their radar, you will not escape them.  You need to look at every single step in your chain.

I'm wondering the same thing, I've been talking with a few manufacturers of pure Apiol I found on a B2B trading platform.. They're very distant from the USA and I don't think Apiol is controlled anywhere on earth though I still want to be cautious and not raise any eyebrows so to speak.

I have mentioned it somewhere else, i knew about somebody who ordered cyclohexylamine benzaldehyde and nitroethan, one liter each, and (dont know exactly) i think shortly after delivery the police showed up, they just want to look around his flat, to see if anything suspicious was going on.
These three chemicals are not watched by law, neither is phenyl-2-nitropropene.
Phenylacetone is watched as precursor, and amphetamine off course is too illegal.
So he had just bought some precursor to make a precursor? Luckily enough he got just charged with methamphetamine production Off course its stupidity at its finest to order these things together, but to think no one will notice or know about this doesnt deserve anything better
Luckily enough if you only made drugs to do them and not to try to get rich, you get away with mostly harmless punishments, if you dont deal, you will probably never get into jail for that sort of hobby.
But when it comes to decisions, the police proves everytime theyre just a bunch of morons, they decide mostly without any knowledge just at the site what is suspicious and what is not. But i could tell you again another story, where somebody went into a pharmacy, bought 50g I2 and left without any stupid questions what it will be used for, and an id was never requested. The latter story happened just a few weeks ago, and this is not really that uncommon.
But a combination some far from reality thinking chemist for a police laboratory recognizes as possible for drug production suited can get you into trouble without a proper law existing for those cases...

And now i get to sleep and try to stop spamming around here!

Would it work?
On the topic of acquisition through legal entities.  Since the intermediates are not specifically scheduled, take for example chlorosafrole  , but would be considered an unlisted precursor (meaning it might go through, but they are going to be watching the address no doubt) that would prove working with a supplier to be very difficult.   
I would venture so far as to say that someone could find a supplier willing to sell it, and that it would be delivered successfully.
But! That is not the question.       Is there anything -legally speaking- that customs can do, since it is neither scheduled nor is listed specifically if it was ordered to an appropriate business entity. 

You might want to read this thread before attempting anything foolish:

http://www.sciencemadness.org/talk/viewthread.php?tid=21829

it's best to use an intermediary if your dealing with china find a startup import broker in china town the start up companies don't ask too many questions speak mandarin or cantonesse fluently and will bend a little more to your will because they are lean and hungry.
they also know a thing or two about customs and how to handle this kind of thing.
it also puts a layer of insulation between you and LE.
as far as LE playing by the rules, don't expect it at all.
these days, they are returning blackwater, or military and they just run up in your house and shoot you, and that's it.
forget about it.

There is also a non-surveillance list so be careful.