您在搜索: Heptane+(mixture+of+isomers)

目录号: (USPH1165656)

供应商: U.S. PHARMACOPEIA

描述: 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.

计量单位: 1 * 200 毫克

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供应商: VWR Chemicals

描述: Residual solvents according to Chinese Pharmacopoeia.

SDS 证书

目录号: (PROML4380)

供应商: PROMEGA

描述: Wheat germ extract contains the cellular components necessary for protein synthesis (tRNA, ribosomes, initiation, elongation and termination factors).

计量单位: 1 * 1 毫升

正在促销

供应商: VWR Chemicals

描述: Uracil-DNA glycosylase (UNG), cod is a thermolabile recombinant enzyme produced in <i>E. coli</i> (ung-) using a modified ung gene derived from Atlantic cod. It degrades uracil-containing single- and double-stranded DNA, but not RNA or thymidine-containing DNA, by hydrolysing the N-glycosidic bond between deoxyribose sugar and the base in uracil. This generates alkaline-sensitive apyramidinic sites in the DNA that will be cleaved upon a combination of alkaline conditions and high temperature.

SDS 证书

目录号: (VWRC1B1492-25RXN)

供应商: VWR Chemicals

描述: RiboReady™ Color 1 kb RNA ladder allows precise sizing of RNA molecules in denaturing acrylamide gels.

计量单位: 1 * 1 KIT

证书 正在促销

供应商: VWR Chemicals

描述: Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.

SDS 证书

目录号: (VWRC1B1491-25RXN)

供应商: VWR Chemicals

描述: RiboReady™ Color Micro RNA ladder allows precise sizing of RNA molecules in denaturing acrylamide gels. The apparent sizes of bands in the RiboReady™ Color Micro RNA ladder are 100, 75, 50, 40, 30 and 20 bases in length.

计量单位: 1 * 1 KIT

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目录号: (VWRCK833-100TABS)

供应商: VWR Chemicals

描述: Ammonium persulphate forms free radicals when dissolved in water, which initiate polymerisation of acrylamide solutions.

计量单位: 1 * 100 Tablet

SDS 正在促销

供应商: VWR Collection

描述: Available with either PP, PTFE or nylon membrane. Membranes are available in either 0,2 or 0,45 µm pore size, with the choice often made on analytical column packing size. If the column packing size is larger than 3 μm then use 0,45 μm, and if 3 μm or smaller then use 0,2 μm.

供应商: VWR Chemicals

描述: The level of volatile organic solvents in pharmaceutical raw materials or finished product is defined and monitored in accordance with ICH guidelines. Residual solvents are classified according to their risk assessment classes. A selection of residual solvent standards is now available from Avantor.

SDS 证书

目录号: (PROMS3841)

供应商: PROMEGA

描述: Western Blue® stabilised substrate for alkaline phosphatase is a stable, ready to use substrate for Western blots and immunoscreening.

计量单位: 1 * 100 毫升

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目录号: (BELAF118470010)

供应商: Bel-Art Products, a Part of SP

描述: Translucent carboys made of lightweight, durable polyethylene with extra-heavy walls for long life and dependability.

计量单位: 1 * 1 件

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目录号: (KIMB5701)

供应商: KIMBERLY CLARK

描述: WYPALL* L40 wipes easily absorb large spills and leaks and are therefore ideal for routine industrial cleaning and maintenance. They are also soft enough to remove soils and liquids from face and hands.

计量单位: 1 * 56 件

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供应商: MASTERFLEX PREMIUM

描述: Interchangeable medias and scales offer flexibility.

供应商: VWR BRAND PRIVATE LABEL USA

描述: These microprocessor-controlled forced air safety ovens have heavy gauge steel exteriors and continuous welded seams and corners for long-term durability. The powder coat enamel exterior provides a high resistance to moisture, oil and chemicals.

目录号: (ILMV112036)

供应商: GARDNER DENVER

描述: The hold-back pump HBP 101 is a vacuum pump with upstream condensation of the solvent. It is designed as a closed system.

计量单位: 1 * 1 件

正在促销