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染料及荧光试剂

染料及荧光试剂

生物染料是能与细胞组成物质,例如DNA,蛋白质,脂质以及糖等,选择性结合、从而区分细胞内结构的特殊物质。其中,部分染料在特定波长激发光的照射下,能够产生荧光,因而被称为荧光染料。在生物学上,染料常被用于生物体标识,例如标记细胞分布,细胞器,蛋白质等。

CSNpharm为广大科研工作者提供种类丰富的染料和荧光染料,用于标识核酸,蛋白质,氨基酸,细胞器,特殊细胞类群,特定组织等。例如JC-1可用于线粒体膜电位检测,Sulforhodamine 101可用于星型胶质细胞标记,D-Luciferin potassium salt可用于动物活体成像。

产品列表

货号 产品名称 CAS号 描述
CSN27836 Calcein AM 148504-34-1

Calcein AM is a non-fluorescent molecule which is freely permeable to the plasma membrane of viable cells.

CSN21917 Propidium iodide 25535-16-4

Propidium iodide (PI) is a red-fluorescent nuclear and chromosome counterstain which can bind to double stranded DNA by intercalating between base pairs.

CSN11155 Hoechst 33258 3HCl 23491-45-4

Hoechst 33258 3HCl is a widely used nucleic acid stain which can bind to minor-groove of dsDNA and emit blue fluorescence.

CSN18517 Hoechst 33342 3HCl 875756-97-1

Hoechst 33342 3HCl is a widely used nucleic acid stain which can bind to minor-groove of dsDNA and emit blue fluorescence.

CSN18148 Hoechst 34580 23555-00-2

Hoechst 34580 is a widely used nucleic acid stain which can bind to minor-groove of dsDNA and emit blue fluorescence.

CSN12409 WST-8 Sodium 193149-74-5

WST-8 is a water-soluble tetrazolium salt can be reduced by NADH in good yields at neutral pHs in the presence of 1-methoxy PMS to produce the corresponding formazan dye that absorbs at 460 nm.

CSN12440 MTT 298-93-1

MTT can be reduced by metabolically active cells, in part by the action of dehydrogenase enzymes, which results intracellular purple formazan solubilized and quantified by spectrophotometric means.

CSN24508 Sulforhodamine B 3520-42-1

The protein dye sulforhodamine B (SRB) could bind electrostatically and pH dependent on protein basic amino acid residues of trichloroacetic acid–fixed cells.

CSN21697 JC-1 47729-63-5

JC-1 works as a mitochondrial potential indictor. In intact mitochondria with membrane potential, the polymeric form of JC-1 at high concentration shows red fluorescence excited at 590 nm.

CSN21857 Tetramethylrhodamine Methyl Ester Perchlorate 115532-50-8

Tetramethylrhodamine Methyl Ester (TMRM) is a fluorescent lipophilic cation which can accumulate rapidly and reversibly in the mitochondria of living cells due to the negative Δψm of the mitochondria with respect to the cytosol.

CSN21865 Tetramethylrhodamine Ethyl Ester Perchlorate 115532-52-0

Tetramethylrhodamine Ethyl Ester (TMRE) is a fluorescent lipophilic cation which can accumulate rapidly and reversibly in the mitochondria of living cells due to the negative Δψm of the mitochondria with respect to the cytosol.

CSN27837 Rhodamine 123 62669-70-9

Rhodamine 123, similar with TMRE and TMRM, is a fluorescent lipophilic cation which can accumulate rapidly and reversibly in the mitochondria of living cells due to the negative Δψm of the mitochondria.

CSN27843 Sulforhodamine 101 60311-02-6

Sulforhodamine 101 is a water-soluble, nonfixable red fluorescent dye used to label astrocytes in vitro and in vivo. ||λex 586 nm; λem 605 nm

CSN17270 Methoxy-PMS 65162-13-2

1-methoxyPMS is a photochemically stable electron mediator between NAD(P)H and tetrazolium dyes.

CSN11033 Fluorescamine 38183-12-9

Fluorescamine is not fluorescent itself, but reacts with primary amines at alkaline pH to yield highly fluorescent products with Ex=365 nm and Em=470 nm.

CSN16244 CY5-SE 146368-14-1

CY5-SE, also called CY5-NHS, is consist of two parts, the fluorophore CY5 and the reactive groups N-Hydroxysuccinimide (NHS).

CSN16242 CY7-SE 477908-53-5

CY7-SE, also called CY7-NHS, is consist of two parts, the fluorophore CY7 and the reactive group N-Hydroxysuccinimide (NHS).

CSN16243 CY3-SE 146368-16-3

CY3-SE, also called CY3-NHS, is consist of two parts, the fluorophore CY3 and the reactive group N-Hydroxysuccinimide (NHS).

CSN11038 5(6)-FAM SE 117548-22-8

5(6)-FAM SE, also called 5(6)-FAM NHS, is consist of two parts, the fluorophore 5(6)-FAM and the reactive group N-Hydroxysuccinimide (NHS).

CSN10052 5-FAM SE 92557-80-7

5-FAM SE, also called 5-FAM NHS, is consist of two parts, the fluorophore 5-FAM and the reactive group N-Hydroxysuccinimide (NHS).

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