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tomholm
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[*] posted on 7-10-2014 at 19:50
Special Order Chemicals for October


Special Order Deadline Oct. 26


Hi All,

Ready to start looking at Special Order Chemicals for October. I've retained the same list of special order chemicals from last month. I believe I have a few items left over from previous months, where I ordered a couple extra. These include Sodium Azide, Aluminum Chloride Anhydrous, Triethethylamine, and Benzophenone. If you order these now, I can ship them before the end of the month. (Quantities are limited!)

If there are additional chemicals you'd like me to look into, please let me know. Also, if you have additional feedback, let me know that, as well. I'm trying to keep prices in check, but it's not easy. Shipping a couple of these chemicals has also been problematic, but I'm learning as I go. I also realize that some of the orders have taken a long time to fill. I'm afraid that may just be a fact of life with this program, as I can't always predict the availability of some of the chemicals.

Hopefully, this program is proving to be helpful. I certainly appreciate your business and your support.

Tom




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tomholm
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[*] posted on 8-10-2014 at 20:03
15% Off on orders over $50 at Elemental Scientific!


Spooky Savings! - 15% Off on orders over $50!

Get 15% off your next order of $50 or more all October long at BME Lab & Science and Elemental Scientific! Just use the code "spooky" at checkout.

... And dont' forget to check us out on Facebook and Twitter for updates, specials, experiments and more!

Win a Gift Card From BME!

Like us on Facebook to be entered to win a $15 gift card good at the BME Lab & Science and Elemental Scientific websites or at our retail location in Minnesota!

Check back next month for more ways to win from BME and Elemental!

Happy October!

From your friends at BME and Elemental Scientific







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[*] posted on 10-10-2014 at 18:32


Tom,

I would like to see the following as special order chems:

p-toluenesulfonyl chloride
methanesulfonyl chloride
methyl iodide

Any chance that these can be sourced in quantities suitable for citizen scientist use?

AvB
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tomholm
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[*] posted on 12-10-2014 at 20:02


Quote: Originally posted by AvBaeyer  
Tom,

I would like to see the following as special order chems:

p-toluenesulfonyl chloride
methanesulfonyl chloride
methyl iodide

Any chance that these can be sourced in quantities suitable for citizen scientist use?

AvB


AvB,

Thanks for asking.

p-toluenesulfonyl chloride is the only one I can ship via UPS or FedEx. The other two would have to go freight, 2 ways, which would be prohibitively expensive.

p-toluenesulfonyl chloride - 100g--> $46
p-toluenesulfonyl chloride - 500g --> $70

Both would have hazardous shipping charges of $30.

Let me know if there is enough interest and I could add it to the list.

Tom




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[*] posted on 13-10-2014 at 11:45
p–dimethylaminobenzaldehyde?


I am building out an alkaloid test kit (inspired by http://www.thehomescientist.com/forensics/Illustrated_Guide_...)
and need p–dimethylaminobenzaldehyde (DMAB) to make Ehrlich's reagent.
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tomholm
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[*] posted on 14-10-2014 at 08:41
p–dimethylaminobenzaldehyde


Quote: Originally posted by careysub  
p–dimethylaminobenzaldehyde?


I have found that p–dimethylaminobenzaldehyde is not widely available, so is quite expensive. Following are two options:

p–dimethylaminobenzaldehyde 100 g ==> $175
p–dimethylaminobenzaldehyde 25 g ==> $69

I will add those two options to the website and hopefully, that will work for you.

Thx.

Tom




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[*] posted on 14-10-2014 at 09:56


Quote: Originally posted by tomholm  
Quote: Originally posted by careysub  
p–dimethylaminobenzaldehyde?


I have found that p–dimethylaminobenzaldehyde is not widely available, so is quite expensive. Following are two options:

p–dimethylaminobenzaldehyde 100 g ==> $175
p–dimethylaminobenzaldehyde 25 g ==> $69

I will add those two options to the website and hopefully, that will work for you.

Thx.

Tom


Interesting - it is the standard detection reagent for a whole class of alkaloids. I am surprised that it is scarce. You learn something every day. (I couldn't have learned that without asking.)

At those prices I'll pass, but thanks.

[Edited on 14-10-2014 by careysub]
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[*] posted on 14-10-2014 at 11:49


I suppose you cannot manage red phosphorus, because of the legal reasons?

What would pricing be on carbon disulfide? somewhere between 250ml and 1L would be nice, price depending.




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[*] posted on 14-10-2014 at 12:32


Quote: Originally posted by tomholm  
Quote: Originally posted by careysub  
p–dimethylaminobenzaldehyde?


I have found that p–dimethylaminobenzaldehyde is not widely available, so is quite expensive. Following are two options:

p–dimethylaminobenzaldehyde 100 g ==> $175
p–dimethylaminobenzaldehyde 25 g ==> $69

I will add those two options to the website and hopefully, that will work for you.

Thx.

Tom


Is it bad form in this forum if I say that you can find p–dimethylaminobenzaldehyde on eBay for MUCH less than that?
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[*] posted on 14-10-2014 at 13:07


Quote: Originally posted by DrMario  

Is it bad form in this forum if I say that you can find p–dimethylaminobenzaldehyde on eBay for MUCH less than that?


Hey, I'm supporting the program with dollars. I bought some special order chemicals last month, and I expect to do so this month!
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[*] posted on 14-10-2014 at 13:24


I would be all over a lot of this stuff if I had funds...

I hate to ask, but how off-the-table is NaH dispersion in mineral oil?

[Edited on 10-14-14 by UnintentionalChaos]




Department of Redundancy Department - Now with paperwork!

'In organic synthesis, we call decomposition products "crap", however this is not a IUPAC approved nomenclature.' -Nicodem
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tomholm
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[*] posted on 14-10-2014 at 18:42


Quote: Originally posted by DrMario  


Is it bad form in this forum if I say that you can find p–dimethylaminobenzaldehyde on eBay for MUCH less than that?


That's what I love about this forum... brutal honesty. Plus I learn a lot.

I did a little more research using alternate names,
4-(Dimethylamino)benzaldehyde and 4-(DIMETHYLAMINO)BENZALD. I was able to find some additional suppliers and ACS grade for much less.

4-(Dimethylamino)benzaldehyde - 100g ==> $49.

I've updated the website and eliminated the 25g option. Hope this one looks better to you all.

I should also add that I do appreciate the feedback on the pricing, service, and quality. That works much better than no feedback and no purchasing. I'll do what I can to provide the right product for the right price.

Thanks.




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tomholm
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[*] posted on 14-10-2014 at 18:49


Quote: Originally posted by Praxichys  
I suppose you cannot manage red phosphorus, because of the legal reasons?

What would pricing be on carbon disulfide? somewhere between 250ml and 1L would be nice, price depending.


Red Phosphorus and Carbon Disulfide cannot be shipped by FedEx or UPS. That means it has to go freight, which is not economical for small shipments. These also require additional paperwork - adding to the cost.

Tom




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[*] posted on 14-10-2014 at 19:19


Quote: Originally posted by UnintentionalChaos  
I would be all over a lot of this stuff if I had funds...

I hate to ask, but how off-the-table is NaH dispersion in mineral oil?

[Edited on 10-14-14 by UnintentionalChaos]


Looks like I can get 100 g of Sodium Hydride, 60% dispersion in mineral oil for about $57. It would ship Hazardous - $30.

Let me know if interested and I can add it.

Tom




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[*] posted on 14-10-2014 at 20:38


Tom,

I would be interested in p-toluenesulfonyl chloride (500g) as well as the sodium hydride.

Thanks for your help with these.

AvB
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tomholm
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[*] posted on 15-10-2014 at 05:17


Quote: Originally posted by AvBaeyer  
Tom,

I would be interested in p-toluenesulfonyl chloride (500g) as well as the sodium hydride.

Thanks for your help with these.

AvB


Sodium Hydride has been added to the website. CHSO-25-100 for $57.




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[*] posted on 15-10-2014 at 10:44


Quote: Originally posted by careysub  
Quote: Originally posted by DrMario  

Is it bad form in this forum if I say that you can find p–dimethylaminobenzaldehyde on eBay for MUCH less than that?


Hey, I'm supporting the program with dollars. I bought some special order chemicals last month, and I expect to do so this month!


My social skills are weak, so I gotta ask: does this mean that my comment wasn't welcome with you? Or that you actually appreciated it?
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[*] posted on 15-10-2014 at 10:53


I would rather source from and established business that deals with the big chemical companies in THIS country than the questionable source from some fly by nighters on eBay.
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[*] posted on 15-10-2014 at 11:38


Quote: Originally posted by hyfalcon  
I would rather source from and established business that deals with the big chemical companies in THIS country than the questionable source from some fly by nighters on eBay.


FWIW, one of the sources is in West Virginia, USA.

I'd like to point out that my comment caused the price of one of the items to decrease from $175 to $49. That seems like a good service for the community, no?

EDIT: I thought I recognized your username, so I looked around and yes, you're the guy who, instead of actually contributing to the topic in one of the threads I started, were all offended about the place where the thread was started. It seems to me.... that you have some random, unhealthy interest in me :D

[Edited on 15-10-2014 by DrMario]
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[*] posted on 15-10-2014 at 12:22


I don't know if I do or don't yet. I'll wait till you speak again and then decide. I just react to what is said, not necessarily who's saying it.

Should I???;)

Which thread was that? I'll look at it and either stand by it or apologize. Whichever I feel more appropriate.

Are you sure you're talking about me??? I've looked at all 42 of your posts and still don't see where we've intersected before! :(

[Edited on 15-10-2014 by hyfalcon]

[Edited on 15-10-2014 by hyfalcon]

[Edited on 15-10-2014 by hyfalcon]
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[*] posted on 15-10-2014 at 12:49


I'm sorry if that upsets you. All I'm going to do is point you to here: http://www.sciencemadness.org/talk/viewthread.php?tid=19143

Number 4 is what I was referring to in that post.

Also what the poster was saying 2 posts up.

[Edited on 15-10-2014 by hyfalcon]
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[*] posted on 15-10-2014 at 12:52


Quote: Originally posted by DrMario  
Quote: Originally posted by hyfalcon  
I would rather source from and established business that deals with the big chemical companies in THIS country than the questionable source from some fly by nighters on eBay.


FWIW, one of the sources is in West Virginia, USA.

I'd like to point out that my comment caused the price of one of the items to decrease from $175 to $49. That seems like a good service for the community, no?

EDIT: I thought I recognized your username, so I looked around and yes, you're the guy who, instead of actually contributing to the topic in one of the threads I started, were all offended about the place where the thread was started. It seems to me.... that you have some random, unhealthy interest in me :D

[Edited on 15-10-2014 by DrMario]


It is often very hard to tell the emotional content of a post. Suggesting a post would be a better fit under a different heading strikes me as being primarily interested in keeping this forum useful rather than some sort of personal attack.
Prices of chemicals do vary widely depending on a lot of factors, including the fact that on EBay you are buying a pig in a poke. It COULD be the deal of a lifetime, but it also could be a total ripoff. If you have experience actually buying a chemical of a purity comparable to what Tom is offering, that is certainly valuable data to give to Tom and to us. OTOH, if you only saw a listing that seemed to be offering such and such an item for such and such a price, I'm not sure that would contribute much to the conversation about what price Tom, a legitimate and proven honest dealer, can sell for.
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[*] posted on 15-10-2014 at 12:59


Back to the referenced post. A simple question involving copper chemistry with no references to a paper of said chemistry should have been started in the beginners section. If you don't understand that, then I suggest you re-read the link I just gave you.
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[*] posted on 15-10-2014 at 14:08


Quote: Originally posted by hyfalcon  
Back to the referenced post. A simple question involving copper chemistry with no references to a paper of said chemistry should have been started in the beginners section. If you don't understand that, then I suggest you re-read the link I just gave you.


And you should be U2U-ing and cluttering up this thread with off-topic personal back-and-forths!

(I believe my comment about supporting Elemental with purchasing was at issue above. No, not offended - but I was pointing out that I was not abandoning Elemental just because a particular reagent was - currently - priced too high. I may buy stuff on eBay on occasion to stretch my overall budget, but it is not coming out of the Elemental purchase budget.)
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[*] posted on 15-10-2014 at 19:41


FYI. Here's a summary of new chemicals that have been added recently.

p-toluenesulfonyl chloride 100g $45.00
p-toluenesulfonyl chloride 500g $75.00
4-(Dimethylamino)benzaldehyde 100 g $49.00
Sodium Hydride 60% dispersion in mineral oil 100 g $57.00
Phthalic anhydride, ACS reagent, 500g $65.00


Tom




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