so, SWIM has been lately assigned, and given an adequate quantity of bulk material, to experiment with various morphine esters and give his opinion on which is most potent/worthwhile.

SWIM has converted morphine sulphate and HCl to diacetyl many, many times (using acetyl chloride), yielding a product better than most street scag SWIM has come across in his, what seems to be, ~8yrs of a junkie career.

SWIM also did give the propyl ester a try twice, and it seemed noticeably more potent and longer lasting.

but SWIM has also spotted some other interesting derivatives within reach, like acetylpropionylmorphine, nicomorphine and possibly others.

SWIM has also been wondering about the possibility of selectively acetylating morphine to 6-MAM using glacial acetic acid & some catalyst (sodium acetate?).

and lastly, SWIM has been thinking weather or not this is worth it:

Semorphone (Mr 2264) is an opiate analogue that is an N-substituted derivative of oxymorphone.

Semorphone is a partial agonist at ?-opioid receptors. It is around twice the potency of morphine, but with a ceiling effect on both analgesia and respiratory depression[1] which means that these effects stop becoming any stronger after a certain maximum dose.

It is not currently used in medicine, and is not a controlled drug, although it might be considered to be a controlled substance analogue of oxymorphone on the grounds of its related chemical structure in some jurisdictions such as the USA, Canada, Australia and New Zealand.

now, possibly also worth noting, SWIM resides outside US jurisdiction, in the dark wastelands of south eastern europe, "where normal things don't happen, very often".

which is precisely the reason SWIM has such chemicals freely available to him.

so, SWIM's inquiry being - does anyone have any first-hand experience/advice one would like to share?

oh, yes, i almost forgot.

this one might come off a little... dumb, BUT.
the diacetyl from the acetyl chloride reaction is readily shootable and very nice, but not at all smokable, or snortable (not that i care for either, but..)
now, i know heroin is actually not good for smoking on tin foil, and weather or not it is, depends on the material it's been cut with. i was thinking piracetam or quinine, but i'm not sure. so, if you can spare the guy a little trail-and-error, he'd be really... happy.
an option for making it powdery and snortable, SWIM has been thinking about turning it into a salt (HCl)..

  Tryl please avoid using "SWIM"

      Use the "third person" instead e.g,, "there was an idea to try and convert the MSO4 into 6-MAM"  Its easy to do so, and, imo, all those swims look ugly! I am sure you can do this

 Plus its one of the "rules" which are worth a quick look!

SWIM has also been wondering about the possibility of selectively acetylating morphine to 6-MAM using glacial acetic acid & some catalyst (sodium acetate?).

 Have a look at the Hydroxylamine thread, you will find some ideas for doing exactly this.

 Otherwise, thanx for the input, keep it up, just without the "swimming"

 regards f1

"i usually speak first person cos i can afford it.."

 thats ok on many forums, but this one likes you to be "timeless and Impersonal".......have a look at those rules mate, a LOT of thought went into them!
 If you dont/cant see why, well, not all of us are in "southern europe" and the laws regarding conspiracy can be severe!!!