Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: CAS-Nr.:19718-92-4 to trade
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 14-3-2018 at 15:06
CAS-Nr.:19718-92-4 to trade


Hello guys,
got up to 200g of
4-(Dimethylamino)butyraldehyde Dimethyl Acetal CAS-Nr.:19718-92-4 >97.3 %, GC avaliable
to share. If you like some, I'm always in the mood of new glassware or other fancy stuff (I do not sell).

I already wrote nearly the same post here so if it is considered as a double please delete one.

I really did not pay much and I do not want to make buisness. Most vendors do sell this chemical too expensive in my opinion, more kind of rip off so let´s see some nice Claisen-Eschenmooser soon I hope

u2u me if you are interested.

DrScrabs

[Edited on 15-3-2018 by DrScrabs]
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 16-3-2018 at 05:20


Ok changed my mind, I am willing to sell the appx 200g for 5$ per gram. excl shipping and packaging no matter how much you want. shipping within europe is no problem.

Edit: oops i did it again, it´s 3$ per g

[Edited on 17-3-2018 by DrScrabs]
View user's profile View All Posts By User
Tsjerk
International Hazard
*****




Posts: 3032
Registered: 20-4-2005
Location: Netherlands
Member Is Offline

Mood: Mood

[*] posted on 16-3-2018 at 05:39


What can we do with this chemical?
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 17-3-2018 at 01:14


You can do a Fischer indole synthesis with 4-x substituted phenylhydrazines or eschenmoser-claisen rearrangement should be possible. I had a good example for the eschenmoser but I do not find it atm, sorry, I will post it as soon as I find it again
Fischer indole example can be found in the rhodium archieve
https://erowid.org/archive/rhodium/chemistry/dmten.html
View user's profile View All Posts By User
Bert
Super Administrator
*********




Posts: 2821
Registered: 12-3-2004
Member Is Offline

Mood: " I think we are all going to die. I think that love is an illusion. We are flawed, my darling".

[*] posted on 17-3-2018 at 05:32


Then, out of the blue, when it is most unexpected, something very different presents itself.

Screenshot_20180317-081343.png - 561kB
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 17-3-2018 at 07:49


Well, thats exactly the way I felt on getting the wrong chem. Sadly illigal to synthesise, this would be the way to use your "on-board reactor" if one likes to play on his own chemistry anyway.
Nice comic thx :)
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 17-3-2018 at 08:26


deleted, totally wrong sry

[Edited on 17-3-2018 by DrScrabs]
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 11-5-2019 at 13:42


bump
View user's profile View All Posts By User
Keras
National Hazard
****




Posts: 936
Registered: 20-8-2018
Location: (48, 2)
Member Is Offline


[*] posted on 14-5-2019 at 22:09


Quote: Originally posted by DrScrabs  

Edit: oops i did it again, it´s 3$ per g

[Edited on 17-3-2018 by DrScrabs]


Isn't that CAS 1116-77-4?
Also, € 3 per gram is what you can get from suppliers in general — Even 2 €/gram if you buy 25 g of it



Screenshot 2019-05-15 at 08.05.02.png - 20kB
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 14-5-2019 at 23:20


Quote: Originally posted by Keras  


Isn't that CAS 1116-77-4?
Also, € 3 per gram is what you can get from suppliers in general — Even 2 €/gram if you buy 25 g of it




No it isn´t. You mention the diethyl acetal, I posted the dimethyl acetal.
The methyl is at 167 eur per 25g on tcichemicals.
And even in larger amounts it´d be about 1 eur per ml as far as I know.
View user's profile View All Posts By User
Keras
National Hazard
****




Posts: 936
Registered: 20-8-2018
Location: (48, 2)
Member Is Offline


[*] posted on 14-5-2019 at 23:49


Quote: Originally posted by DrScrabs  

No it isn´t. You mention the diethyl acetal, I posted the dimethyl acetal.
The methyl is at 167 eur per 25g on tcichemicals.
And even in larger amounts it´d be about 1 eur per ml as far as I know.


Oh, my bad. Sorry.

PS: what justifies such a price bump?

[Edited on 15-5-2019 by Keras]
View user's profile View All Posts By User
DrScrabs
Hazard to Others
***




Posts: 123
Registered: 13-3-2018
Location: Laputa
Member Is Offline

Mood: Still evaporating..

[*] posted on 15-5-2019 at 01:02


In the fischer the acetal has to undergo hydrolysis first, maybe the methy hydrolyses more readily than the ethyl under those conditions. But actually I dont know. Quite large difference for nearly the same compound, I think even the same manufacturing route except for the MeOH/EtOH swap.
View user's profile View All Posts By User
Loptr
International Hazard
*****




Posts: 1348
Registered: 20-5-2014
Location: USA
Member Is Offline

Mood: Grateful

[*] posted on 15-5-2019 at 13:58


PM sent



"Question everything generally thought to be obvious." - Dieter Rams
View user's profile View All Posts By User

  Go To Top