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mario840
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Registered: 20-1-2010
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Hello, I have two friends working in various positions at Sigma in my country so the best answer to your question is .... connections  Thank You guys for the comments, as i told time will show the truth.
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mario840
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2-Methyoxyethanol - 500ml - 35EUR 1000ml- 60EUR
2-nitroaniline - 100g - 50EUR 500g - 200EUR
4-nitroaniline - 100g - 45EUR 500g - 145EUR
Pentachlorophenol - 100g - 40EUR 500g - 150EUR
4-bromoaniline - 50g - 40EUR
N-butyldiethanolamine 500ml - 39EUR 1000ml - 69EUR
Cetrimonium bromide - 25g - 30EUR
2,5-Diphenyloxazole - 100g - 70EUR 250g - 150EUR
N,N-Dimethylurea - 100g - 20EUR 500g - 85EUR
Tetradecane - 100ml - 40EUR 250ml - 90EUR
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Luderlasse
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I can vouch for this seller. My item was very well packaged!
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Mathias94
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Hi mario! May I ask which country you are sending from? If you don't want to tell it's understandable, but you are sending from Europe, right? Thanks
for providing so many exotic chemicals 
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mario840
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Yes, from Europe
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mario840
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1,1'-Dianthrimide - 100 g - 120 EUR
Sodium fluorosilicate - 500 g - 90 EUR
Sodium diethyldithiocarbamate - 250 g - 60 EUR 500 g - 100 EUR
Sodium iodate - 100 g - 50 EUR
Hydrobromic acid 40% - 1000 ml - 120 EUR
Hexafluorosilicic acid 34% - 1000 ml - 55 EUR
Phosphomolybdic acid hydrat - 100 g - 90 EUR
Periodic acid - 100 g - 90 EUR
Tungstic acid - 100 g - 30 EUR 500 g - 110 EUR
Molybdic acid - 500 g - 90 EUR 1000g - 160 EUR
Perchloric acid 60% - 500 ml - 55 EUR 1000 ml - 95 EUR
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mario840
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6-Chloronicotinonitrile 25g 140 EUR
(-)-Shikimic acid 25g 300 EUR
Dibromoacetonitrile 100g 150 EUR
Benzyl cyanide 500ml 90 EUR
N-Bromosuccinimide 1kg 110 EUR
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The Volatile Chemist
International Hazard
Posts: 1981
Registered: 22-3-2014
Location: 'Stil' in the lab...
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Kind-of expensive for the amateur...(-)-Shikimic acid, 25g, EURO 300?
Not to say this collection of purchasable items isn't awesome, just not in my price range...
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mario840
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you pick one that is expensive, many others are in good price ...
Propylene carbonate 500 g - 65 EUR
(−)-β-Pinene 200ml - 30 EUR
4-Methyl-2-pentanone - 500ml - 32 EUR
5-Methylresorcinol 25g - 100 EUR
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careysub
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Posts: 1339
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I received my order, thanks.
Although the prices per gram are generally very good, often the amounts are too large to be attractive.
Phosphomolybdic acid for example is an excelllent alkaloid detection reagent, but 100 g is an enormous amount for a reagent used drop-wise. Even 10 g
would be a lifetime supply.
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The Volatile Chemist
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Posts: 1981
Registered: 22-3-2014
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Quote: Originally posted by mario840  | you pick one that is expensive, many others are in good price ...
Propylene carbonate 500 g - 65 EUR
(−)-β-Pinene 200ml - 30 EUR
4-Methyl-2-pentanone - 500ml - 32 EUR
5-Methylresorcinol 25g - 100 EUR |
Sorry, didn't mean to insult. You've got a fine collection, and I understand your listing the more expensive ones as well, I was more complaining that
I didn't have the money for the nicer ones
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mario840
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relax , you didn't insulted me I respect Your opinion
alpha-Benzoin oxime 25g - 30 EUR
Silicon carbide 500g - 70 EUR
Potassium hydrogen phthalate 250g - 75 EUR
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mario840
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ethylene thiourea - 25g - 40EUR
diethyl sulfate - 500ml - 70EUR
methanesulfonyl chloride - 500g - 100EUR
phosphorous tribromide - 300g - 110EUR
bromine - 1L- 174 EUR
trifluoroacetic acid - 250g - 70EUR 1kg - 200EUR
indene - 100ml - 93EUR 500ml - 260EUR
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mario840
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Phenolphthalein ACS reagent 1000g - 110 EUR
Titanium(IV) oxide 1000g - 60 EUR
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mario840
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Hydrazine hydrate 80% 1000ml - 65EUR
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User123
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Registered: 31-10-2015
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I've made several orders with Mario now, and I'd just like to say that I have been impressed every time. The chemicals are of high quality, and he is
prepared to order things on your behalf if he doesn't have it in stock. I recently acquired some dicyclopentadiene from him, which I have wanted for
many years but have never been able to source. It's opened up a whole new area of chemical experiments for me with organometallic catalysts.
His prices are fair, I think, and he has access to an unlimited variety if you are prepared to wait for him to place an order on your behalf.
He provides an excellent service for those of us who the major chemical suppliers want nothing to do with!
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Stallion
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Registered: 13-8-2011
Location: USA
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Another positive review for Mario.
Prices are completely fair for the service offered. Flawless service, packaging, and quality. What more is there to say? Nobody should hesitate to do
business with him. Reagents arrived without an issue to the USA.
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mario840
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Bismuth(III) chloride - 20g- 30EUR -100g - 90EUR
Bismuth(III) sulfide - 25g- 50EUR -100g- 150EUR
Bismuth(III) oxide - 100g- 49EUR
Bismuth(III) nitrate pentahydrate -100g- 40EUR
Cesium chloride -25g- 39EUR -100g- 120EUR
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mario840
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Hexamethyldisilazane reagent grade, ≥99% 1L - 190EUR
3,3-Dimethyl-2-butanone 100ml - 90 EUR 1L - 250EUR
2-chloroquinoline 1g - 25 EUR 5g - 70EUR 20g - 210 EUR
Cetylpyridinium bromide hydrate 100g - 80EUR
Selenium dioxide 500g - 230EUR
Styrene oxide 500g - 60EUR
Methyl acrylate 500ml - 47 EUR
1-Bromo-4-fluorobenzene 100g- 45EUR
Propyl gallate 100g- 50EUR
Molecular Sieves 4A - 250g - 48EUR
Aliquat 336 - 250g - 41EUR
Orcein - 5g - 60EUR 10g - 100EUR
Iodine monochloride - 100g - 55EUR
Iodine monobromide - 50g - 36EUR
1-nitropropane - 100ml - 25EUR 500ml - 75EUR
Butyryl chloride - 100ml - 130EUR
Piperidine >99% - 100ml - 38EUR 500ml - 120EUR
4-nitrobenzoyl chloride - 50g - 25EUR
Decahydronaphthalene - 1L- 92EUR
Triethyl ortoformate - 100ml - 55EUR
Sulfolane - 100g - 33EUR - 250g - 58EUR
Imidazole - 100g - 52EUR
Boron trifluoride diethyl etherate - 100ml - 29EUR
Potassium pyrosulphate - 25g - 25EUR - 500g - 95 EUR
Sulfuric acid, fuming reagent grade, 30% free SO3 basis - 500g - 150EUR
N-propyl iodide - 5g - 19EUR - 100g - 40EUR
α,α,α-Trifluorotoluene - 100ml - 22EUR
2,4-Dimethyl-3-pentanone - 100ml - 33EUR
Ethyl Levulinate - 100g - 31EUR - 250g - 65EUR
Tetrabutylammonium iodide - 25g - 24EUR
Ethylene glycol diethyl ether -100ml - 50EUR - 500ml - 190EUR
2,6-lutidine - 100ml - 31EUR
Ethyl p-toluenesulphonate - 50g - 22EUR - 100g - 31EUR - 250g - 68EUR
1-Phenyl-1H-tetrazole-5-thiol - 25g - 37EUR
L-Proline ReagentPlus®, ≥99% (HPLC) - 100g - 90EUR
3-hydroxypyridine - 25g - 23EUR
3,4-xylidine - 100g - 40EUR
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mario840
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Posts: 229
Registered: 20-1-2010
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1-Naphthylamine 100g - 89EUR
1,1,2,2-tetrabromoethane - 250g - 39EUR
Allyl cyanide 98% 100ml - 100EUR
N,N-diisopropylethylamine 100ml - 47EUR 1000ml -390EUR
Hydantoin, 99% 100g - 24EUR
Tetraethyl orthosilicate 99% - 100ml - 50EUR
o-Tolidine, 98% - 100g - 110EUR
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mario840
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crystal grower
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Hi,
Do you have pure bismuth for sell ?
If yes what would be the price for 1kg and shipping to slovakia?
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mario840
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Posts: 229
Registered: 20-1-2010
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4-hydroxypiperidine 99% 100g - 200EUR
Butyronitrile 100ml - 70EUR
4-Chloropyridine hydrochloride 99% 100g - 130EUR
Ammonium bismuth citrate 250g - 100EUR
4-hydroxyacetophenone 100g - 50EUR
Phloroglucinol, anhydrous, 99% 100g - 70EUR
Potassium hexafluorophoshphate 1000g - 210EUR
Sodium hexafluorosilicate 1kg - 110EUR
1,2-diethoxyethane 500ml - 110EUR
Ethyl p-toluenesulfonate 98% 1kg - 160EUR
Zirconyl chloride octahydrate 100g - 80EUR
Tetrapropylammonium iodide 25g - 30EUR
3,4-dimethoxyphenylacetone 100g - 90 EUR 250g - 190EUR
2-Methylpentane 1000ml - 160EUR
3-Methylpentane 1000ml - 160EUR
Succinonitrile, 99% 500g - 109EUR
N,N-dicyclohexylcarbodiimide 500g - 110EUR
2-Chloroethylamine hydrochloride 250g - 80EUR
3-Sulfolene 98% 500g - 80EUR
Thallium(I) carbonate 10g - 50EUR, 100g - 300EUR
Tin(II) tetrafluoroborate solution 50 wt. % in H2O 250ml - 120EUR
Gibberellic acid ?95% (HPLC) 1g - 50EUR
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James Ikanov
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Posts: 81
Registered: 12-7-2015
Location: Alaska
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Very good stuff.
I got exactly what I asked for, albeit with labels in what I think is Polish.
My order was packaged very thoughtfully and carefully and survived the post office's every attempt to kill it. Seriously, the box showed up split in
half (Thanks, USPS :/ ) , but everything inside was still safely bubble wrapped and totally undamaged.
Incredibly friendly the whole way through the buying process to boot
“To do good work one must eat well, be well housed, have one's fling from time to time, smoke one's pipe, and drink one's coffee in peace” -
Vincent Van Gogh
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Loptr
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Registered: 20-5-2014
Location: USA
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I must say that mario840 is now my source for harder to obtain reagents, or anything that he happens to be able to supply cheaper than I can get
otherwise. Shipping to the USA/East Coast is extremely cheap and packaged well. Pretty much anything I have thought of asking for he either has, or
has been able to procure and ship in an extremely short turnaround.
As the guy above said--extremely friendly and polite!
The postal service decided to take a holiday during business hours for almost 2 weeks, and he was able to answer the questions from my several emails
asking what is up with my package, and did so in a very patient and helpful manner. In the end all packages have arrived in good shape, good quality
(that I have tested so far), and as promised. Very professional!
I am working on another order with him, and plan to continue to do so.
I have a feeling he will own my paycheck before its all said and done.
Check him out. He's a stand up guy and will follow through on what he tells you. In fact, he gently reminded me that I said I was going to give him a
review.
I honestly don't have anything negative or neutral to say about the guy and his service: the prices are good, the shipping is cheap, and he
delivers. Give him a try and you wont be disappointed.
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