2. Cell Cycle/DNA Damage
  3. DNA Stain

DNA Stain

There are several different stains that can be used to visualize and photograph DNA after separation by gel electrophoresis. Molecules of the dye adhere to DNA strands and fluoresce under UV light, showing where the bands are within the gel.

Hoechst stains are part of a family of blue fluorescent dyes used to stain DNA.There are three related Hoechst stains: Hoechst 33258, Hoechst 33342, and Hoechst 34580. The dyes Hoechst 33258 and Hoechst 33342 are the ones most commonly used and they have similar excitation/emission spectra.

DNA Stain Related Products (69):

Cat. No. Product Name Effect Purity
  • HY-D0971
    Pyronin Y
    Pyronin Y (Pyronine G) is a cationic dye that intercalates RNA and has been used to target cell structures including RNA, DNA and organelles. Pyronin Y forms fluorescent complexes with double-stranded nucleic acids (especially RNA) enabling semi-quantitative analysis of cellular RNA. Pyronin Y can be used to identify specific RNA subspecies of ribonuclear proteins complexes in live cells[1][2][5].
  • HY-D0021
    Ethidium bromide 99.85%
    Ethidium bromide is an intercalating agent commonly used as a fluorescent tag (nucleic acid stain) in molecular biology laboratories for techniques such as agarose gel electrophoresis.
  • HY-110251
    DFHBI-1T 98.12%
    DFHBI-1T is a membrane-permeable RNA aptamers-activated fluorescence probe (ex/em=472 nm/507 nm). DFHBI-1T binds to RNA aptamers (Spinach, Spinach2, iSpinach, and Broccoli) and causes specific fluorescence and lower background fluorescence. DFHBI-1T is used to image RNA in live cells[1][2].
  • HY-101879
    Acridine Orange hydrochloride 99.86%
    Acridine Orange hydrochloride is a cell-penetrable nucleic acid-selective fluorescent dye. Acridine Orange hydrochloride produces orange fluorescence when it binds to ssDNA or RNA, and green fluorescence when it binds to dsDNA (Ex: 488 nM; Em: green fluorescence at 530 nm, orange fluorescence at 640 nm)[1][2][3].
  • HY-D0814
    DAPI dihydrochloride
    DAPI dihydrochloride is a DAPI dye. DAPI is a fluorescent dye that binds strongly to DNA. It binds to the AT base pair of the double-stranded DNA minor groove, and one DAPI molecule can occupy three base pair positions. The fluorescence intensity of DAPI molecules bound to double-stranded DNA is increased by about 20 times, and it is commonly observed with fluorescence microscopy, and the amount of DNA can be determined based on the intensity of fluorescence. In addition, because DAPI can pass through intact cell membranes, it can be used to stain both live and fixed cells[1].
  • HY-161164
    Tricyclic cytosine tC
    Tricyclic cytosine tC is a fluorescent base analogue that can be used as a fluorescent probe in nucleic acid-containing systems. The excitation wavelength is 385 nm and the emission wavelength is 505 nm[1][2].
  • HY-D2220
    SiR-Hoechst
    SiR-Hoechst is a far-red fluorescent DNA probe being used widely for time-lapse imaging of living cells. SiR-Hoechst is minimally toxic at concentrations as high as 10-25 µM. SiR-Hoechst induces DNA damage responses and G2 arrest at concentrations well below 1 µM[1][2].
  • HY-D1686B
    Biotin-16-UTP tetrasodium
    Biotin-16-UTP tetrasodium is an active substrate for RNA polymerase. Biotin-16-UTP tetrasodium can replace UTP in the in vitro transcription reaction for RNA labeling[1].
  • HY-15625
    Hoechst 33258 analog 3 99.82%
    Hoechst 33258 analog 3 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution[1].
  • HY-D1396
    Br-DAPI
    Br-DAPI is a marker dye in DAPI series. DAPI is a fluorescent dye that binds strongly to DNA. It binds to the AT base pair of the double-stranded DNA minor groove, and one DAPI molecule can occupy three base pair positions. The fluorescence intensity of DAPI molecules bound to double-stranded DNA is increased by about 20 times, and it is commonly observed with fluorescence microscopy, and the amount of DNA can be determined based on the intensity of fluorescence. In addition, because DAPI can pass through intact cell membranes, it can be used to stain both live and fixed cells[1]. Storage: Keep away from light.
  • HY-D0996
    LDS-751
    Lds-751 is a nucleic acid stain that mainly detects DNA. Lds-751 is a nucleic acid stain that mainly detects DNA. Lds-751 has a high affinity for DNA and fluorescence is enhanced after binding, but the maximum emission wavelength is 670nm. Lds-751 and Thiazole orange can be used for the differentiation of red blood cells, platelets, reticulocytes, and nucleated cells and can be stimulated at 488nm. Studies have shown that LDS-751 binds almost exclusively to mitochondria when incubated with nucleated living cells. After nucleated Acridine Orange (HY-101879) staining and LDS-751 treatment of cells, confocal microscopy revealed almost no co-location of the cells. Staining with Rhodamine 123 (HY-D0816), a dye known to bind polarized mitochondria, was almost identical to the pattern observed with LDS-751[1][2][3].
  • HY-135413B
    MeCY5-NHS ester triethylamine
    MeCY5-NHS ester (potassium) is a reactive dye and can be used for labeling protein nucleic acid[1].
  • HY-D0115
    7-Hydroxycoumarin-3-carboxylic acid N-succinimidyl ester
    7-Hydroxycoumarin-3-carboxylic acid N-succinimidyl ester is the amine-reactive succinimidyl ester of 7-Hydroxycoumarin-3-carboxylic acid. 7-Hydroxycoumarin-3-carboxylic acid N-succinimidyl ester is a blue fluorescent dye for labeling proteins and nucleic acids[1].
  • HY-136247A
    Cyanine 5 Tyramide methyl indole
    Cyanine 5 Tyramide (Tyramide-Cy5) methyl indole is a red fluorescent dye. Cyanine 5 Tyramide is utilized as reporter fluorescent substrate for horseradish peroxidase (HRP)-catalyzed deposition that is signal amplification technique in immunoassay and in situ hybridization of nucleic acids[1]. Storage: protect from light.
  • HY-125786
    Solvent violet 9
    Solvent violet 9 is a dye for recognizing DNA[1].
  • HY-D1742
    DRAQ5 Chemical
    DRAQ5 is a novel cell permeant and far red-fluorescing DNA probe. DRAQ5 excites at a wavelength of 647 nm, close to the Ex, and produces a fluorescence spectrum extending from 665 nm out to beyond 780 nm wavelengths. DRAQ5 fluorescence reflects cellular DNA content. DRAQ5 can be used in combination with FITC and RPE-labelled antibodies, without the need for fluorescence compensation[1].
  • HY-D1723
    EthD-III
    EthD-III is a nucleic acid probe. EthD-III is a red fluorescent stain that can be used to detect dead cells. EthD-III enters cells with damaged membranes and binds to nucleic acids, resulting in bright red fluorescence in dead cells (Ex/Em=530/645 nm)[1][2].
  • HY-D1086
    6-Carboxy-X-rhodamine, succinimidyl ester
    6-Carboxy-X-rhodamine, succinimidyl ester (6-ROX, SE) is a fluorescent dye for oligonucleotide labeling and automated DNA sequencing[1].
  • HY-138200
    Cy5 maleimide 99.43%
    Cy5 maleimide is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis[1]. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance[2].
  • HY-110251A
    DFHBI-2T
    DFHBI-2T is a membrane-permeable RNA aptamers-activated fluorescence probe (ex/em=500 nm/523 nm). DFHBI-2T is used to image RNA in live cells[1][2].