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Transdermal lysergamides?
Yeah I know about DMSO as a penetration enhancer, and ethanol too for that matter. Oh and if you loo ... |
3-5-2018 at 08:28
by: Sigmatropic |
Transdermal lysergamides?
Anyone know why fentanyl is readily capable of transdermal uptake but LSD is not?
Their dose is com ... |
3-5-2018 at 05:58
by: Sigmatropic |
Large Scale NH4NO3 Processing
Use potassium carbonate. Only the first equivalent of ammonia will be released immediately, but is t ... |
2-5-2018 at 06:23
by: Sigmatropic |
Making Potassium metal by distillation with Al and KOH
Good speculation AKJOER, except that Al(OH)3 will dehydrate into aluminium oxide, releasing water. W ... |
1-5-2018 at 09:12
by: Sigmatropic |
ozonolysis alkene->aldehyde, used in industry?
Pyridine has been used as a cosolvent in a pretty much identical fashion. https://pubs.acs.org/doi/a ... |
29-4-2018 at 19:40
by: Sigmatropic |
Synthesis of phenol from benzene
Halo benzenes are not substituted by an Sn1 mechanism. Nor is an empty sp2 orbital sticking out of a ... |
27-4-2018 at 08:00
by: Sigmatropic |
Small scale preparation of Stannic Chloride (SnCl4)
I wouldn't omit the drying part. A tube with CaCl2 or better yet a wash bottle with sulfuric acid is ... |
26-4-2018 at 03:00
by: Sigmatropic |
How much solution is required to react
8 significant digits, wow! I usually think just in moles:
3 percent H2O2 is 0.88 Molar.
2 grams of ... |
21-4-2018 at 23:43
by: Sigmatropic |
Lab-scale continuous fractional distillation
Easiest would be to rig a rotavap with two collection flasks which can be removed from the vacuum sy ... |
19-4-2018 at 22:19
by: Sigmatropic |
Indoles forming salts?
Salts the one position are intermediates in some reactions (methylation, tosylation) and the product ... |
17-4-2018 at 00:10
by: Sigmatropic |
Indoles forming salts?
It is all guided by pKa values which are inherently connected with the stability of the conjugate ba ... |
16-4-2018 at 12:46
by: Sigmatropic |
Indoles forming salts?
It is indeed the H on N3 but this indolic NH can only be deprotonated by strong bases. Although I di ... |
16-4-2018 at 11:57
by: Sigmatropic |
Indoles forming salts?
N1 is an amide, the other main resonance structure of an amide has a N=C bond. The nitrogen lone pai ... |
16-4-2018 at 11:05
by: Sigmatropic |
Ammonia production from ammonium sulfate & sodium base
I would load up a flask with solid base (NaOH, KOH, CaO) and drop in a saturated solution of ammoniu ... |
14-4-2018 at 02:58
by: Sigmatropic |
Lab tips & tricks
Screw top thermometer adaptors are not suitable with vacuum because the thermometer can be sucked in ... |
8-4-2018 at 03:18
by: Sigmatropic |
Someone is wrong (about organic chemistry) on the Internet!
The author of the 1st reddit thread is clearly hinting at pharmacophores although he must have been ... |
6-4-2018 at 10:40
by: Sigmatropic |
First attempt Grignard since Ochem II cyclopentyl bromide
One can only assume what nitrile that must be...
[file]66989[/file] |
6-4-2018 at 08:03
by: Sigmatropic |
enolonium species
Enolium? Enolate yes, but enolium? I've never heard of anything remotely similar. Is it a protonated ... |
2-4-2018 at 13:58
by: Sigmatropic |
Catechol preparation
Protonation of the phenol methyl ether and substitution with bromide giving methyl bromide which of ... |
1-4-2018 at 15:07
by: Sigmatropic |
Destilling HCl - the lowest lowtech you can go
Ah the proton spontaneously transmutates into a chlorine atom. Now this does not work in practice no ... |
28-3-2018 at 09:38
by: Sigmatropic |
Short question / quick answer - Thread
I seem to remember some axt(number I don't remember) on at least two publicly available online platf ... |
13-3-2018 at 13:50
by: Sigmatropic |
Compounds (API's) with various hydrate forms - what testing can differentiate these
Water content is checked with Karl Fischer titration. https://en.wikipedia.org/wiki/Karl_Fischer_tit ... |
11-3-2018 at 04:42
by: Sigmatropic |
Street drug analysis / harm reduction
Racemically pure, that's a good one... Even though we're talking about a compound which is diastereo ... |
9-3-2018 at 11:06
by: Sigmatropic |
Halifax Explosion
You can add oppau to that list:
https://en.m.wikipedia.org/wiki/Oppau_explosion |
17-2-2018 at 08:36
by: Sigmatropic |
Should Pharmacists know what Potassium Hydroxide is?
I remember going to a family owned pharmacy lately asking for KOH. I sort of wanted to support the l ... |
28-1-2018 at 22:18
by: Sigmatropic |
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