155232 Results for: "slides-and-cover-glasses&amp"

Supplier: Spectrum Chemical Mfg. Corp.

L-Asparagine, Monohydrate, FCC - 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: MP Biomedicals

Betaine is a quaternary amine found in bacteria and higher plants which acts as an osmoprotectant (able to restore and maintain osmotic balance in living cells) and enhances the freezing tolerance of of living organisms. This is probably due to its involvement in the protection of macrocomponents of plant cells, such as protein complexes and membranes, under stress conditions. Betaine is biosynthesized in living cells by a two-step oxidation method from choline. The primary enzyme involved in this biosynthesis is choline oxidase.

Supplier: Aladdin Scientific

Sequence:Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-Ile-AlaBiochemical mechanism:Amyloid protein β Protein segment 1-42 (A β  1-42) It has antioxidant and neuroprotective properties. Amyloid protein β Protein accumulation is associated with Alzheimer's disease (AD) and Down syndrome. A β  1-42 regulates cholesterol transport and acts as a transcription factor. It may also have anti-inflammatory and antimicrobial effects.Application:Amyloid protein is found in the brain of patients with Alzheimer's disease and Down syndrome β- The main segment of the protein.Amyloid protein β Protein fragments 1-42 have been used to:1. A β  Preparation of 1-42 oligomer2. Western blot analysis3. Immunomagnetic Reduction (IMR) Plasma A β 42 Detected interference test4. Study the effect of resveratrol on A β  1-42 induced impairment of spatial learning, memory and synaptic plasticity5. Study A β Role in epithelial cell culture

Supplier: Aladdin Scientific

ABX-1431 ABX-1431 is a highly potent, selective, and CNS-penetrant Monoacylglycerol lipase (MGLL) inhibitor with IC50 values of 14 nM and 27 nM for hMGLL and mMGLL respectively.TargetshMGLL ; mMGLL 14 nM; 27 nMIn vitroABX-1431 is a potent human MGLL inhibitor (average IC50 = 0.014 μM) with >100-fold selectivity against ABHD6 and >200-fold selectivity against PLA2G7. Treatment of intact human PC3 cells with ABX-1431 following a 30 min inhibitor incubation time causes concentration dependent inhibition of MGLL activity with an IC50 value of 0.0022 μM, which is ∼6-fold more potent than that observed In vitro.

Supplier: Sartorius

These Cubis® II premium high capacity laboratory balances are ideal for high-performance portfolio of both labs weighing hardware and software.

Supplier: Ambeed

ß-Nicotinamide adenine dinucleotide phosphate (NADP-Na₂, oxidized form)

Supplier: MP Biomedicals

Storage: Store at Room Temperature (15-30 °C). Store Desiccated. Store under nitrogen.
L-Cysteine is a proteinogenic amino acid incorporated into proteins as directed by the genetic code. The thiol-side chain participates in a variety of oxidation/reduction reactions within the cell. The side chain participates in the formation of β bonds that modulate the secondary and ternary structure of proteins. Cysteine is essential and limiting for the formation of glutathione, an important antioxidant, within the cell.
Cysteine has been used in pulse-chase experiments to study protein expression from an inducible promoter. L-Cysteine is used to supplement cell culture media.
NMDA glutamatergic receptor agonist.

Supplier: Ambeed

Sodium ferric ethylenediaminetetraacetate, Purity: 97%, CAS Number: 15708-41-5, Appearance: Solid, Storage: Inert atmosphere, Room Temperature, Size: 25G

Supplier: Aladdin Scientific

AZD8835 ia a novel mixed inhibitor ofPI3 KαandPI3 Kδwith IC50 of 6.2 nM and 5.7 nM, respectively, also with selectivity againstPI3 Kβ(IC50=431 nM) andPI3 Kγ(IC50=90 nM). TargetsPI3 Kδ (Cell-based assay); PI3 Kα (Cell-free assay); PI3 Kγ (Cell-based assay); PI3 Kβ (Cell-based assay) 5.7 nM; 6.2 nM; 90 nM; 431 nMIn vitroAZD8835 is a potent inhibitor of PI3 Kα (wild type, E545 K and H1047 R mutations) and PI3 Kδ with excellent selectivity vs. PI3 Kβ, PI3 Kγ and an excellent general kinase selectivity.

Supplier: Labconco

Acid-Resistant CentriVap™ Pro vacuum concentrators are designed to rapidly concentrate multiple small samples using centrifugal force, vacuum and heat.

Supplier: Aladdin Scientific

BI 894999 BI 894999 is a potent and selective BET inhibitor with IC50 of 5 nM and 41 nM for the binding of BRD4-BD1 and BRD4-BD2 to acetylated histones, respectively. BI 894999 is highly selective for BRD2/3/4 and BRDT (Kd of 0.49-1.6 nM), with at least a 200-fold selectivity vs. BRD4-BD1.TargetsBET ; BRD4-BD1 (Cell-free assay); BRD4-BD2 (Cell-free assay) ; 5 nM; 41 nMin vitroBI 894999 is highly active in AML cell lines, primary patient samples. BI 894999 targets super-enhancer-regulated oncogenes and other lineage-specific factors, which are involved in the maintenance of the disease state.in vivoBI 894999 is active as monotherapy in AML xenografts, and in addition leads to strongly enhanced antitumor effects in combination with CDK9 inhibitors.Cell Research(from reference)Cell lines: MV-4-11B, THP-1, MOLM-13 Concentrations: 10 nM, 100 nM, various concentrations Incubation Time: 4h, 24h, 79 h, 96 h.

Supplier: AVANTOR PERFORMANCE MATERIAL LLC

Avantor excipients are used during the formulation process in a wide range of applications. Avantor provides high-purity and performance excipients that serve as fillers, binders, disintegrants, lubicants, flavors, emulsifiers and preservatives.

Supplier: Ambeed

(2S,3S,4R,5R,6R)-5-Amino-2-(aminomethyl)-6-(((2R,3S,4R,5S)-5-(((1R,2R,3S,5R,6S)-3,5-diamino-2-(((2R,3R,4R,5S,6R)-3-amino-6-(aminomethyl)-4,5-dihydroxytetrahydro-2H-pyran-2-yl)oxy)-6-hydroxycyclohexyl)oxy)-4-hydroxy-2-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)tetrahydro-2H-pyran-3,4-diol xsulfate, 25G

Supplier: SPEX CERTIPREP LLC

Consumer Safety Standards
Analytical Standards for Wine

Wine is a complex combination of water, alcohol and other substances such as organic acids, phenols, sugars, carbon dioxide, and sulfur dioxide. The chemical interactions of these compounds, combined with the aging process, determine the quality of the color, taste and aroma of the wine. However, during this process, the chemical interactions can also play key roles in spoiling the wine. For instance, cork taint transpires when naturally occurring airborne fungi are in the presence of chlorophenol compounds to form 2,4,6-trichloranisole (TCA) in the wine. When this occurs, the wine’s aroma is reduced significantly and is replaced by an undesirable smell and taste.

To help regulate the spoilage of wine, the wine industry tests for several compounds that are known to cause this. For this industry, SPEX CertiPrep offers Certified Reference Materials (CRMs) for wine that are designed for GC, GC/MS, HPLC and LC/MS analysis. These standards are manufactured from the highest purity starting materials and the highest grade of solvents available in order to guarantee superior quality. Each standard is supplied with a detailed comprehensive Certificate of Analysis.

Supplier: Ohaus

Vortex Genie® Mixers are available in multiple models and with a vast array of available platforms and accessories.

Supplier: Aladdin Scientific

Calcein, AM is a cell staining reagent that can fluorescently label living cells. After it penetrates the cell membrane and enters the cell, it is cleaved by the intracellular esterase to form Calcein, which is retained in the cell and emits strong green fluorescence. Compared with other similar reagents (such as BCECF, AM and CFDA), Calcein, AM has very low cytotoxicity. The excitation and emission wavelengths of Calcein are 490 nm and 515 nm, respectively. Calcein, AM only stain live cells. PI, which is a nuclear staining dye, cannot pass through the cell membrane of living cells. It passes through the disordered area of the dead cell membrane to reach the nucleus, and is embedded in the cell’s DNA double helix to generate red fluorescence (excitation: 535 nm, emission: 617 nm).

Supplier: Aladdin Scientific

ARN-3236 ARN-3236 is a potent, orally available and selective inhibitor of salt-inducible kinase 2 (SIK2) with IC50 of <1 nM, 21.63 nM and 6.63 nM for SIK2, SIK1 and SIK3, respectively. ARN-3236 induces apoptosis in cancer cells. TargetsSIK2 (Cell-free assay); SIK3 (Cell-free assay); SIK1 (Cell-free assay) 1 nM; 6.63 nM; 21.63 nMIn vitroSIK2 is overexpressed in approximately 30% of high grade serous ovarian cancers. ARN-3236 inhibits growth of 10 ovarian cancer cell lines at an IC50 of 0.8 to 2.6 μM, where the IC50 of ARN-3236 is inversely correlated with endogenous SIK2 expression (Pearson’s r = −0.642, P = 0.03). ARN-3236 enhances sensitivity to paclitaxel in 8 of 10 cell lines. In at least three cell lines a synergistic interaction is observed.

Supplier: Aladdin Scientific

BTSA1 is a pharmacologically optimizedBAXactivator that binds with high affinity and specificity to the N-terminal activation site and induces conformational changes to BAX leading to BAX-mediated apoptosis. It effectively promotes apoptosis in leukemia cell lines and patient samples while sparing healthy cells.TargetsBaxIn vitroBTSA1 has no capacity to directly activate the pro-apoptotic homolog BAK. BTSA1 treatment potently and dose-responsively induces membrane translocation of recombinant soluble BAX to mitochondrial membrane, which is followed by induction of BAX oligomerization. BTSA1-induced BAX activation promotes apoptosis in cancer cells. BTSA1 reduces viability of all Aml cell lines in a dose-dependent manner with IC50 values ranged between 1 and 4 μM, which leads to complete effect within 24 hr treatment. It induces dose-dependent caspase-3/7 activation in all five Aml cell lines.

Supplier: Electron Microscopy Sciences

Nominal calibrated dimensions: 300 or 700 nm.

Supplier: MP Biomedicals

Pure Canavalia ensiformis lectin (Con A) from Jackbean. Isolated by affinity chromatography on cross-linked dextran. Con A exists as a dimer below pH 5.0 and and at pH >7 it exists as a tetramer. Con-A is not a glycoprotein. The monomeric molecular weight of Con-A is 25500. Con-A does not contain cysteine residues. Unlike most other lectins, Con-A is a metalloprotein and requires a transition metal ion, such as manganese, plus calcium ions for binding.

Supplier: Aladdin Scientific

Alofanib (RPT835) Alofanib (RPT835) is a novel selective allosteric inhibitor of FGFR2 and has a dramatic inhibitory effect with IC50 <10 nM on FGF2-induced phoshphorylation of FRS2a in KATO III cells. It has no direct effect on FGF2-dependent FGFR1 and FGFR3 phosphorylation levels in either cell lines and no effects on FGF2-FGFR2 binding. TargetsFGFR2 (Cell-free assay)In vitroAlofanib induces mainly apoptosis with cleavage of caspase 3, PARP and Bcl-2 in SKOV3 cell line. Cytotoxic effect of compound on ovarian cancer cells is low. Alofanib inhibits phosphorylation of FRS2α with the IC50 values of 7 and 9 nmol/l in cancer cells expressing different FGFR2 isoforms. In a panel of four cell lines representing several tumour types (triple-negative breast cancer,melanoma, and ovarian cancer), alofanib inhibits FGF-mediated proliferation with 50% growth inhibition (GI50) values of 16 to 370 nmol/l.

Supplier: Aladdin Scientific

Cell-permeable, adenine-thymine-specific fluorescent stain. Useful for staining DNA, chromosomes, and nuclei for fluorescence microscopy and flow cytometry applications. Useful for the simultaneous study of the cell cycle and apoptosis in unfixed cells. Induces cell differentiation. H 33342 and the related compound H 33258 have been used in conjunction with RNA aptamers in the 5′ untranslated region (UTR) to control expression of transfected gene constructs. Exhibits a 10-fold greater cell-permeability than H 33258. Cell-permeable adenine-thymidine specific fluorescent stain. Useful for staining DNA, chromosomes or nuclei for fluorescence microscopy and flow cytometry applications. DNA-bound dye has an excitation maximum of 358 nm and an emission maximum of 460 nm. Useful for the simultaneous study of the cell cycle and apoptosis in unfixed cells. Induces cell differentiation. H33342 and the related compound H33258 have been used in conjunction with RNA aptamers in the 5′ untranslated region (UTR) to control expression of transfected gene constructs. Exhibits a 10 fold greater cell-permeability than H 33258.

Supplier: Aladdin Scientific

BAW2881 (NVP-BAW2881) is a novelvascular endothelial growth factor (VEGF) receptor tyrosine-kinaseinhibitor that potently inhibits VEGFR1-3 at 1.0-4.3 nanomolar (nM) concentrations and inhibits PDGFRβ, c-Kit, and RET (c-RET) at 45-72 nM concentrations.TargetshVEGFR2 (Cell-free assay); C-Raf-1 (Cell-free assay); B-RAFV599E (Cell-free assay); c-Abl (Cell-free assay); mVEGF2 (Cell-free assay) 16390,9 nM; 24 nM; 76 nM; 99 nM; 165 nMin vitroin vitro studies demonstrated that NVP-BAW2881 inhibited proliferation, migration, and tube formation of human umbilical vein endothelial cells and lymphatic endothelial cells.

Supplier: MP Biomedicals

Physiological chelating agent for heavy metals.
It is used as an antirheumatic and as a chelating agent in Wilson′s disease. It is used as a copper chelator to form mixed disulfides with cysteine or other sulfide media components. It is used to inactivate protein-1 DNA binding and to inhibit the growth of asynchronous cultures of rabbit articular chondrocytes.
Penicillamine is a characteristic degradation product of penicillin type antibiotics. One atom of copper combines with two molecules of penicillamine. Penicillamine reduces excess cystine excretion in cystinuria. This is by disulfide interchange between penicillamine and cystine, which results in formation of a readily excreted penicillamine-cysteine disulfide. Penicillamine interferes with the formation of cross-links between tropocollagen molecules and cleaves them when newly formed. Penicillamine lowers IgM rheumatoid factor and depresses T-cell activity.
+4°C

Supplier: Genevac

miVac Centrifugal Evaporation Systems provide a compact, high performing solution for removing water and organic solvents from a variety of sample formats. Configure a system to meet your application requirements.

Supplier: Aladdin Scientific

Citarinostat (ACY-241, HDAC-IN-2) is an orally available selectiveHDAC6 inhibitor with IC50 of 2.6 nM and 46 nM for HDAC6 and HDAC3, respectively. It has 13 to 18-fold selectivity towards HDAC6 in comparison to HDAC1 to 3. TargetsHDAC6 (Cell-free assay); HDAC1 (Cell-free assay); HDAC2 (Cell-free assay); HDAC3 (Cell-free assay); HDAC8 (Cell-free assay) 2.6 nM; 35 nM; 45 nM; 46 nM; 137 nMIn vitroIn cell lines from multiple solid tumor lineages, combination treatment with ACY-241 and paclitaxel enhances inhibition of proliferation and increases cell death relative to either single agent alone. Combination treatment with ACY-241 and paclitaxel also results in more frequent occurrence of mitotic cells with abnormal multipolar spindles and aberrant mitoses, and is associated with increased frequency of abnormal multipolar mitotic spindle formation, induction of aneuploidy, and increased cell death.

Supplier: MP Biomedicals

PMA (Phorbol-12-Myristate-13-Acetate) is a diester of phorbol and is a tumor promoting compound extracted from croton oil. It is a reversible, highly potent protein kinase C (PKC) activator in vitro and in vivo at nM concentrations. PMA’s effects on PKC are attributed to its similarity to diacylgylerol, a natural activator of PKC.
PMA activates Ca2+- ATPase and potentiates forskolin-induced cAMP formation. It has been shown to inhibit apoptosis induced by the Fas antigen, but PMA induces apoptosis in HL-60 promyelocytic leukemia cells.
Potent tumor promoter; activates protein kinase C in vivo and in vitro.
Store at -20 °C. Protect from light.

Supplier: MP Biomedicals

Ferritin, Equine is a shell of 24 protein subunits (apoferritin) and a core Fe 3+ ions with a peptide MW of 440 kDa. Review of the ferritin-like superfamily of iron-storage proteins, virtually ubiquitous in life on earth.
A ubiquitous iron storage protein that plays a key role in iron metabolism. It serves as an intracellular iron reserve (particularly in spleen, liver, intestinal mucosa, and bone marrow) and functions in iron detoxification. Studies have shown that ferritin iron incorporation is mediated by a ferroxidase activity associated with ferritin H subunits and a nucleation center associated with ferritin L subunits. Release of iron from ferritin has an essential role in iron-dependent lipid peroxidation and may contribute to free radical-induced cell damage in vivo. Therefore, by binding iron, ferritin may function as an antioxidant.
Store at +4 °C.

Supplier: Labconco

Self-contained ductless enclosures allow safe handling of organic, formaldehyde, acid gas, sulfur compounds, or ammonia chemical fumes and vapors.

Supplier: MilliporeSigma

Suitable for use as excipient EMPROVE® exp.