155240 Results for: "slides-and-cover-glasses&amp"

Supplier: AMERICAN DIAGNOSTIC CORP CP

A great starter st with a rechargeable power supply.

Supplier: BeanTown Chemical

CAS: 21210-43-5; MDL No: MFCD00064246 Powder; Molecular Formula: C9H10O3 ; MW: 166.17 Melting Point: 56-58° Optical Rotation: [α]20/D +144°, c = 1 in methanol

Supplier: Aladdin Scientific

Biopterin has two isomers (D- and L-biopterin). We sell only L-Biopterin. The hydrogenated forms of biopterin i.e. dihydrobiopterin and tetrahydrobiopterin are involved in many important biochemical functions in the human body, among which are the hydroxylation of tyrosine, phenylalanine and tryptophan. 6-Biopterin is an oxidation product from the melanogenesis regulating cofactor (6R)5,6,7,8 tetrahydrobiopterin (6-BH4). in vitro, 6-Biopterin is cytotoxic to melanocytes. However, in vivo, 6-Biopterin is rapidly and sequentially reduced back to 6-GH4 via q-BH2. Recent studies suggest that 6-Biopterin among other pteridines may be a useful non-invasive biomarker for cancer.

Supplier: Aladdin Scientific

4-tert-Butylbenzaldehyde is an important intermediate for the synthesis of medicines, dyes, flavor and fragrance compounds. It is reported to be formed during the partial oxidation of 4-tert-butyltoluene by hydrogen peroxide in glacial acetic acid, catalyzed by bromide ions in combination with cobalt(II) acetate or cerium(III) acetate. Schiff base reaction between 4-tert-butylaniline and 4-tert-butylbenzaldehyde in ethanol has been carried out on-chip in the matrix assisted laser desorption ionization (MALDI) chamber, the formed imine was detected in real time.4-tert-Butylbenzaldehyde is suitable for use in a kinetic study to evaluate the kinetic constants (KI) for inhibition of mushroom tyrosinase by 4-substituted benzaldehydes.

Supplier: Spectrum Chemical Mfg. Corp.

Hydrobromic Acid, 48 Percent, Reagent, ACS, a mineral acid and one of the strongest known, it is formed when hydrogen bromide is dissolved in water. Mostly used as a reagent in the generation of organobromine compounds, it can also be used to produce inorganic bromides. As an ACS grade Reagent, Spectrum Chemical manufactured compounds are used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and pureness

Supplier: Avantor

The set includes 200 heparinized, mylar wrapped, hematocrit tubes, and six capillary tube trays with sealant. Each tray has two rows of slots numbered 1 through 24 for easy tube storage.

Supplier: MilliporeSigma

Clear liquid is free from particulates. Suitable for use in organic synthesis and other anhydrous solvent applications.
Elbow adapter with septum cap (EM-692004-2) allows for the removal of solvent under nitrogen atmosphere. Replacement septum (EM-692004S-2), for use with elbow adapter, minimizes air and moisture intrusion once the primary septum is punctured. Drying tube (EM-692010-2) filled with t.h.e.* desiccant indicating silica gel removes solvent under a dry-air atmosphere. Large plug (EM-692012-2) is a replacement plug for bottle top.

Supplier: Cytiva

C columns are economical empty columns suitable for low pressure liquid chromatography and gravity feed at the lower volumes used at research scale.

Supplier: Wards

Comprises an inverted “U” tube with its ends closed by sintered discs. For use in experiments involving the measurement of cell EMF under conditions of forward, zero and reverse current flow. The bridge comprises an inverted “U” tube with its ends closed by sintered discs. This apparatus provides a more effective method of making reversible cells then the wet filter paper or agar gel methods. Dia. of arms 13mm, overall width 80mm, overall height 100mm.

Supplier: DWK Life Sciences (KIMBLE)

WHEATON® offers both flat bottom and baffled Erlenmeyer flasks.

Supplier: Yamato Scientific

This small benchtop oven uses a decompressed direct heating chamber for vacuum drying.

Supplier: ANTON PAAR USA MS

The Dual Autotap tapped density analyzer for powders is simple-to-use, automated device which comply with a large number of internationally recognized standard methods.

Supplier: Spectrum Chemical Mfg. Corp.

Polysorbate 80, FCC is used as a wetting agent. The FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications. Spectrum Chemical offers over 300 Food grade chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Supplier: Ambeed

(2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-(((2S,3S,4R,5R)-3,4-diacetoxy-2,5-bis(acetoxymethyl)tetrahydrofuran-2-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate, Purity: 98%, CAS Number: 126-14-7, Appearance: White to Off white powder, Storage: Inert atmosphere, Room Temperature, Size: 25G

Supplier: MP Biomedicals

Malonic acid is used to prepare barbiturates. Its derivative diethylmalonate is used in Knoevenagel condensation reactions as well as reacts with acetone to form Meldrum's acid. It is used to control acidity, preservative additive for foods and as an excipient in pharmaceutical formulation. It acts as a precursor to polyesters and as an active component in alkyd resins. Further, it is used as a building block in chemical synthesis. In addition to this, it is used to prepare starch-based resin.

Supplier: Promega Corporation

IPTG, Dioxane-Free (isopropyl-β-d-thiogalactopyranoside), is an inducer of β-galactosidase activity in many bacteria. Functioning as a lac analog, IPTG induces β-galactosidase activity by binding to and inhibiting the lac repressor. This product is used to differentiate recombinants from nonrecombinants in cloning strategies using vectors containing the lacZ or lacZ α-peptide gene..

Supplier: Ansell Healthcare

Optically correct for clear vision.

Supplier: Thermo Scientific Chemicals

Chromium(III) potassium sulfate dodecahydrate 98+%

Supplier: MP Biomedicals

Dimethyl sulfoxide is a dipolar, aprotic solvent. Has been shown to accelerate strand renaturation (1-10% concentration) and is believed to give the nucleic acid thermal stability against depurination. By heating the solid form to approximately 30 °C, the product can be melted without harming it's stability.

Supplier: BeanTown Chemical

CAS: 10025-69-1; EC No: 231-868-0; MDL No: MFCD00149863; RTECS: XP8850000 UN No: UN3260; Haz Class: 8; Packing Group: III Crystalline; Linear Formula: SnCl2·2H2O; MW: 225.65 Melting Point: 37-38° (decomposes); Boiling Point: 652° Density (g/mL): 2.71 Air Sensitive, Moisture Sensitive

Supplier: Adipogen

Gangliosides are acidic glycosphingolipids that form lipid rafts in the outer leaflet of the cell plasma membrane, especially in neuronal cells in the central nervous system. They participate in cellular proliferation, differentiation, adhesion, signal transduction, cell-to-cell interactions, tumorigenesis and metastasis. The accumulation of gangliosides has been linked to several diseases. Removing the sialic acid from monosialoganglioside GM1 inhibits its ability to bind cholera toxin. Asialo-ganglioside GM1 does not block the binding of cholera toxin to cellular GM1.

Supplier: Thermo Scientific Chemicals

Sodium acetate buffer solution pH, 5.2 is been widely used in for precipitation of nucleic acids and preparation of gel stains for protein gel electrophoresis. Sodium acetate buffer solution is suitable for precipitation of DNA, elution of proteins and for use in molecular biology applications such as Chip-on-Chip assay and in vitro enzyme inhibition assay.

Supplier: Corning

This cabinet-style LSE™ shaking incubator is constructed with mirrored stainless steel interior and cold rolled steel exterior. Built in orbital shaker accepts a large assortment of platforms and clamps that can accommodate flasks, petri dishes and test tube racks. Mechanical convection provides a safe, stable temperature environment and fast chamber temperature recovery after opening the door.

Supplier: Environmental Express

One system handles both flask and pan analysis methods.

Supplier: Ambeed

5-((3-Carboxy-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)(2,6-dichloro-3-sulfophenyl)methyl)-2-hydroxy-3-methylbenzoic acid, trisodium salt, Purity: AR, CAS Number: 1667-99-8, Appearance: Solid, Storage: Inert atmosphere, Room Temperature, Size: 25G

Supplier: Aladdin Scientific

Baicalein is a cell-permeable flavone, originally isolated from the roots of Scutellaria baicalensis, that inhibits cellular Ca²⁺ uptake, calcium mobilization, and adjuvant-induced arthritis. Baicalein has been shown to inhibit platelet 5-LO (5-lipoxygenase) (IC50= 9.5 mM) and 12-LO (12-lipoxygenases) (IC50=0.12 mM) and reverse transcriptase. Baicalein reduces leukotriene biosynthesis and inhibits the release of lysosomal enzymes.

Supplier: Aladdin Scientific

(1S)-(-)-Camphor is a monoterpenoid compound found in many plant essential oils.application: Chiral intermediate and chiral auxiliary precursor. Used in the synthesis of high-potency sweeteners.

Supplier: Aladdin Scientific

APD-597 (JNJ-38431055) is a potent and selective G protein-coupled receptor 119 (GPR119) agonist with EC50 of 46 nM for hGPR119 and an inhibitor of Cytochrome P450 2C9 (CYP2C9) with IC50 of 5.8 μM. APD-597 (JNJ-38431055) is developed for treating Type 2 diabetes (T2D). Targets hGPR119 (Cell-free assay); CYP2C9 (Cell-free assay) 46 nM(EC50); 5.8 μM.

Supplier: Aladdin Scientific

4-tert-Butylbenzaldehyde is an important intermediate for the synthesis of medicines, dyes, flavor and fragrance compounds. It is reported to be formed during the partial oxidation of 4-tert-butyltoluene by hydrogen peroxide in glacial acetic acid, catalyzed by bromide ions in combination with cobalt(II) acetate or cerium(III) acetate. Schiff base reaction between 4-tert-butylaniline and 4-tert-butylbenzaldehyde in ethanol has been carried out on-chip in the matrix assisted laser desorption ionization (MALDI) chamber, the formed imine was detected in real time. 4-tert-Butylbenzaldehyde is suitable for use in a kinetic study to evaluate the kinetic constants (KI) for inhibition of mushroom tyrosinase by 4-substituted benzaldehydes.

Supplier: Aladdin Scientific

Chaetocin, a natural product originally produced by Chaetomium species, is shown to have apoptotic effects on some cancer cells. Mechanistic studies show that chaetocin is taken up in the cells by a process that requires intact/unreduced disulfides for uptake. Once inside, this compound imposes oxidative stress and consequent apoptosis induction.