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Solvent of the Week - MJLPHD

Solvent of the week #1: 2-Methyltetrahydrofuran MP: -136 °C BP: 80 °C Density: 0.854 g/mL Description: This virtuous solvent is a flammable organic liquid. It is like a version of THF that is not miscible in water and has higher BP (80 instead of 66 °C) so can be used at higher temp for reactions under reflux.

Solvent of the Week - MJLPHD

Solvent of the week #1: 2-Methyltetrahydrofuran MP: -136 °C BP: 80 °C Density: 0.854 g/mL Description: This virtuous solvent is a flammable organic liquid. It is like a version of THF that is not miscible in water and has higher BP (80 instead of 66 °C) so can be used at higher temp for reactions under reflux.

US 2009/0023924 A1 - Processes For The Preparation Of .

The Lens serves almost all the patents and scholarly work in the world as a free, open and secure digital public good, with user privacy a paramount focus.

US Patent for Methods for producing Beraprost and its .

The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.

Biochemical Measurement of Neonatal Hypoxia | Protocol

After the third extraction, transfer the aqueous layer to a round bottom flask and rotovap to dryness. Resuspend the product in 3ml ethanol and transfer to a pre-weighed 15ml conical tube. Rinse the flask with an additional 2ml ethanol and add the rinse to the conical tube.

Proceedings: EPA Conference on Analysis of Pollutants in .

----- FIFTEENTH ANNUAL EPA CONFERENCE ON ANALYSIS OF POLLUTANTS IN THE ENVIRONMENT TABLE OF CONTENTS - 4 Page Thursday, May 7, 1992 (continued) Analysis of Volatile Organic Compounds in Soil Using Static Headspace Extraction 549 Greg O'Neil Tekmar Evaluation of Forty-Eight Candidate Compounds Using U. S. EPA Method 524.2 „., . 591 Jean Munch .

Practical Synthesis of Cytidine-5-Carboxamide-Modified .

Mar 04, 2015 · The resulting colorless solution was magnetically-stirred as 4,4′-dimethoxytrityl chloride (4.47 g, 13.2 mmol, 1.1 eq) was added in five portions over one hour. The orange-yellow solution was stirred for 30 minutes more, quenched with ethanol (4.2 mL, 72 mmol), and concentrated on the rotovap (1–2 mm, ≤35°C).

US Patent for Methods for producing Beraprost and its .

The present invention is directed to methods for preparing Beraprost and novel synthetic intermediates for Beraprost.

Nitric acid removal from oxidation products - KIELY; DONALD E.

Apr 11, 2000 · Extraction with diisopropyl ether--50 mL of diisopropyl ether were added to the oxidation reaction mixture. The resultant layers were then separated and the aqueous solution was concentrated at 45° C. under reduced pressure to give approximately 20 mL of syrup. The syrup was dissolved in 30 mL of water.

US Patent for Conversion of alcohols to longer chain .

For effective impregnation, the flask was shaken for 30 seconds. The solvent was removed by evaporation with a rotovap set at 80° C. for 30 minutes and the resulting material reduced by 10% hydrogen (20 mL/min) in helium (180 mL/min) at 300° C. for 2 hours at a ramp rate of 5° C./min).

Rotovaps.net | The Largest Selection of Rotary Evaporators!

Rotovaps.net makes finding the best Rotary Evaporator for your lab easy! Great selection, expert support, and tools to help you make the right choice.

Minnesota State University Moorhead

U. nder agitation, 200 g. (1.5 mol) AlCl 3 are added portionwise to 188 g. (1.0 mol) 1-phenyl-2,3-dimethyl-5-pyrazolone, 1000 ml. CS 2, and 300 ml. nitrobenzene at 15-20°. Acid chloride (1.2 moles) dissolved in an equal vol. CS 2 is added to the soln. After addn., the mixt. is held 2 hrs. at room temp. and thereafter boiled 2 hrs. After cooling, the CS 2 layer is sepd. and shaken with 200 ml .

rotovap

Related: rotary evaporator rotovap 50l rotory evaporator rotary evaporator 2l centrifuge buchi rotovap 20l buchi rotovap source turbo short path distillation rotovap 1l Refine more Format

phase 1 – All About Drugs

The precipitate is filtered, washed with diisopropyl ether to give the title compound 335.36g of crude and vacuum dried (net 222.35g, 99% yield). The title compound of crude were obtained (212.99g, net 133.33g) and ice-cold 0.2M phosphate buffer solution of pH5.3 mix a little at a time, alternating between the (pH6.5,4.8L).

Synthesis of Nicotinic Receptor Ligands and Strigolactones

page 1 1 synthesis of nicotinic receptor ligands and strigolactones by kinga chojnacka a dissertation presented to the graduate school of the university of florida in .

ORGO LAB 2 PUNK PHENOM STUDY GUIDE Flashcards | Quizlet

-dry organics and remove solvent (nitrogen stream or rotovap)-recrystallize via diisopropyl ether-collect via vacuum filtration-analyze with HNMR-collect products for Dr. Holman's Lab. Ether test-TA will test ether with KI start paper-> I becomes I2 to ensure isopropyl ether is peroxide free.

METHODS FOR SYNTHESIZING ANTIVIRAL COMPOUNDS .

INTERNATIONAL PARTNERSHIP FOR MICROBICIDES (1010 Wayne Avenue, Ste 1450Silver Spring, MD, 20910, US) THOMPSON, Andrew, S. (1144 Sawmill Road, Mountainside, NJ, 07092 .

GM1-gangliosidosis in American black bears: Clinical .

G M1-gangliosidosis is a rare progressive neurodegenerative disorder due to an autosomal recessively inherited deficiency of lysosomal β-galactosidase.We have identified seven American black bears (Ursus americanus) found in the Northeast United States suffering from G M1-gangliosidosis.This report describes the clinical features, brain MRI, and morphologic, biochemical and molecular genetic .

Shriner - The Systematic Identification of Organic Compounds

A number of violent explOSions due to accidental detonation of peroxides, which can build up in common ether solvents, have been reported. These ethers include diethyl ether, diisopropyl ether, dioxane, and tetrahydrofuran. Apparently the greatest hazard exists when ethers have been exposed to air, especially for extended periods of time.

Synthesis of Nicotinic Receptor Ligands and Strigolactones

page 1 1 synthesis of nicotinic receptor ligands and strigolactones by kinga chojnacka a dissertation presented to the graduate school of the university of florida in .

US6049004A - Nitric acid removal from oxidation products .

US6049004A US09/209,285 US20928598A US6049004A US 6049004 A US6049004 A US 6049004A US 20928598 A US20928598 A US 20928598A US 6049004 A US6049004 A US 6049004A Authority US United States Prior art keywords acid method nitric acid oxidation product carbohydrate Prior art date 1998-12-11 Legal status (The legal status is an assumption and is not a legal conclusion.

Biochemical Measurement of Neonatal Hypoxia | Protocol .

표 2. purines 및 내부 표준에 대한 일반적인 유지 시간과 λ 최대. * 1mL/min의 흐름 속도 isocratic 50mM 암모늄 편대 버퍼 (산도 5.5)을 사용하여 HPLC 결정. 산도는 []입니다. 세중의 모든 샘플을 분석하지만, 변화의 계수가 10 % 미만 경우에만 나중에 분석을위한 값을 포함합니다.

US 8450372 B2 - Formulations Of Suberoylanilide Hydroxamic .

celite, and concentrated on the rotovap to dryness. Procedure B The residues were slurried with hexanes and filtered. The solids appeared pink. SAHA Form IV Mai et al OPPI Briefs SAHA was recrystallized from acetonitrile. (2001)Vol 33(4), 391-394 SAHA Form V

Biochemical Measurement of Neonatal Hypoxia | Protocol .

세 번째 추출 후, 둥근 바닥 플라스크에 수성 레이어를 전송하고 건조하는 rotovap. 3ml 에탄올과 미리 무게 15ml 원뿔 튜브로 전송에서 제품을 Resuspend. 추가 2ml .

What is a Rotovap used for? - Lab Instrument Manufacturer

A rotary evaporator (Rotovap) is a piece of machinery or equipment used in the creation of some cannabis concentrates. A rotary evaporator evaporates and recovers pricey ethanol from ethanol-extracted concentrates. Rotary evaporators are one of the key steps in creating butane hash oil (BHO) and other cannabis concentrates.

December « 2016 « New Drug Approvals « Page 2

The solution was then concentrated by rotovap to afford a dark oil (3.57 g). The oil was dissolved in MTBE (50 mL) and filtered though silica. The plug was washed with MTBE (4 x 25 mL) and the clear, yellow filtrate was concentrated by rotovap to an oil (2.7 g). Upon standing overnight, solids precipitated out of the crude oil.

December « 2016 « New Drug Approvals « Page 2

The solution was then concentrated by rotovap to afford a dark oil (3.57 g). The oil was dissolved in MTBE (50 mL) and filtered though silica. The plug was washed with MTBE (4 x 25 mL) and the clear, yellow filtrate was concentrated by rotovap to an oil (2.7 g). Upon standing overnight, solids precipitated out of the crude oil.

Peroxide Forming Chemical Storage Guidelines

Rotovap explosions have occurred in the lab, so always be careful when using peroxidizable solvents in the rotovap – test the solvent for peroxides before using and shield the rotovap flasks to prevent injury from flying glass fragments in the event of an explosion!

Orphan Drug Status « New Drug Approvals « Page 2

Both were concentrated by rotovap to give oils (7.05 g and 1.84 g, 8.89 g total, > yield, HPLC purity -90%). The larger aliquot was used to generate hetone 1-4 as is. The smaller aliquot was dissolved in DCM (3.7 g, 2 parts) and placed on a pad of Si0 2 (5.5 g, 3 parts). The flask was rinsed with DCM (1.8 g), and the rinse added to the pad.

Rotovap for sale

Buchi R-205 R205 Rotovap Rotary Evaporator with V-805 V805 Vacuum Controller. 999.99. Free shipping. Make Offer - Buchi R-205 R205 Rotovap Rotary Evaporator with V-805 V805 Vacuum Controller. 5L Rotary Evaporator RotoVap Stainless Lab Equipment Digital Heating Bath Lift. 1,032.00