70885 Results for: "Lejki+-+du\u017Ce+rozmiary&pageNo=51"

Supplier: Merck

1,1'-Dimethylferrocene, Sigma-Aldrich®

Supplier: AAT Bioquest

AAT Bioquest's iFluor® dyes are optimized for labeling proteins, in particular, antibodies.

Supplier: VWR Chemicals

Formamide, (max. 0.1% H₂O) ≥99%, GPR RECTAPUR® for synthesis

Supplier: VWR Chemicals

Sodium nitrite 0.1 N, AVS TITRINORM volumetric solution

Supplier: VWR Chemicals

Calcined Diatomaceous Earth Filter Aid.

Supplier: VWR Chemicals

Chlorotoluron(3-(3-chloro-p-tolyl)-1,1-dimethylurea), extra pure

Supplier: VWR Chemicals

Ladder with 10 fragments ranging from 50 to 500 bp for easy band identification. Ready to use formula pre-mixed with loading dye.

Supplier: Trajan Scientific and Medical

Chromatography tubing, PEEK, PEEKsil™ capillary tubing for HPLC, LC/MS applications, Ø int.: 0,1 mm, Ø ext.: 0,79 mm, Colour: Red, Length: 50 mm

Supplier: Corning

Block for 8×15 ml tubes

Supplier: US Biological

Anti-CDK15 Mouse Polyclonal Antibody

Supplier: MP Biomedicals

Soluble in a 1% aqueous solution (clear, colorless solution).

Supplier: Merck

Piperonyl butoxide, Sigma-Aldrich®

Supplier: Merck

Potassium hydroxide 0.1 mol/l (0.1 N) in methanol, Titripur® volumetric solution, Supelco®

Supplier: ProSci Inc.

Interleukin-15 receptor subunit alpha, also known as Il15ra, is a high-affinity receptor for interleukin-15. Il15ra associates as a heterotrimer with the IL-2 receptor beta and gamma subunits (Common gamma chain, or gamma c) to initiate signal transduction. It can signal both in cis and trans where IL15R from one subset of cells presents IL15 to neighboring IL2RG-expressing cells. Il15ra is expressed in special cells including a wide variety of Tand B cells and non-lymphoid cells. Human Il15ra shares 45% amino acid sequence homology with the mouse form of the receptor. Eight isoforms of IL-15 R alpha mRNA have been identified, resulting from alternative splicing events involving different exons.Interleukin 15 (IL-15) is a cytokine that regulates T cell and natural killer cell activation and proliferation. IL-15 binds to the alpha subunit of the IL15 receptor (IL-15RA) with high affinity. IL-15 also binds to the beta and gamma chains of the IL-2 receptor, but not the alpha subunit of the IL2 receptor. IL-15 is structurally and functionally related to IL-2. Both cytokines share some subunits of receptors, allowing them to compete for and negatively regulate each other's activity. The number of CD8+ memory T cells is controlled by a balance between IL-15 and IL-2. Despite their many overlapping functional properties, IL-2 and IL-15 are, in fact, quite distinct players in the immune system. IL-15 is constitutively expressed by a wide variety of cell types and tissues, including monocytes, macrophages and DCs.

Supplier: Honeywell Chemicals

Potassium hydroxide 0.1 M (0.1 N) in 2-propanol DIN 51558-1 volumetric solution, Fluka™

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

Supplier: VWR Collection

Air displacement pipette with two pre-calibrated steps allows subsequent pipetting of 1 and 0,1 ml of the same liquid. Ideal alternative to graduated glass pipettes when performing serial 1:10 dilutions in bacteriology.

Supplier: DICKSON

The MM120 is a simple, cost-effective temperature monitoring tool. The MM120 does not track your data, but it is a useful backup to a traditional data logger in your vaccine or drug monitoring application.

Supplier: VWR Collection

VWR®, Crucible lid, For Ø: 50 mm, Porcelain

Supplier: Avantor

Avantor® ACE® SuperC18 columns provide high stability across an extended pH range. These stainless steel columns are ideal for use with LC/MS compatible buffers and can be used with both MeOH and MeCN mobile phases.

Supplier: Molekula

Sodium mercaptoacetate (sodium thioglycolate)

Supplier: HUBER

Test tube rack, type E, PC, 6 holes (Ø 31 mm), immersion depth 50 mm, For: 106A-E to 110A-E

Supplier: Thermo Fisher Scientific

L(-)-Menthol ≥99%

Supplier: VWR Chemicals

Petroleum spirit, 50…70 °C ≥90%, AnalaR NORMAPUR®

Supplier: Merck

2-Ethyl-9,10-anthraquinone for synthesis, Sigma-Aldrich®

Supplier: VWR Chemicals

These standards can be used for calibration, control, verification, qualification or method validation of kinematic and dynamic viscosity measurement instruments (both manual and automatic). Each standard is certified for kinematic viscosity (mm²/s, cSt), dynamic viscosity (cP) and density (g/ml) at a range of temperatures.

Supplier: VWR Collection

VWR®, Chromatography vial closure, Steel, Screw caps with septa, open top, magnetic, Hardness: 50° shore A, Septum: Red butyl/grey PTFE, Thickness: 1,5 mm

Supplier: VWR Collection

These leakproof, conical bottom centrifuge tubes prevent breakage and leakage during high speed centrifugation, and are made of non cytotoxic, medical grade resin that allows users to easily see sample volume and colour.

Supplier: VWR Collection

An economical range of reliable, high performance analytical balances. All models have a stainless steel top pan.