2. Biochemical Assay Reagents
  3. Indicators

Indicators

Indicators are used in chemical reactions to to signal the progress or endpoint of a reaction, changing color rapidly upon completion of the reaction. They are commonly employed in acid-base titration, redox titration, and other chemical analyses to ascertain whether the reaction has been completed.
Based on the reaction types, indicators can be divided into acid-base indicators, metal ion indicators, redox indicators, adsorption indicators, fluorescent indicators, etc.

Indicators (140):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-15915
    DTNB 69-78-3 98.67%
    DTNB (Ellman’s Reagent) is a chemical used to quantify the number or concentration of thiol groups.
    DTNB
  • HY-D0014
    Brilliant blue G-250 6104-58-1
    Brilliant Blue G-250 is a dye commonly used for the visualization of proteins separated by SDS-PAGE, offering a simple staining procedure and high quantitation. In the Bradford protein assay, protein concentrations are determined by the absorbance at 595 nm due to the binding of Brilliant Blue G-250 to proteins. Brilliant Blue G-250 is a safe highly selective P2×7R antagonist with promising consequent inactivation of NLRP3 inflammasome.
    Brilliant blue G-250
  • HY-Y0292
    Lithium carbonate 554-13-2 99.02%
    Lithium carbonate (Carbolithium) is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
    Lithium carbonate
  • HY-B1359A
    Methylene blue indicator 7220-79-3 99.3%
    Methylene blue indicator is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
    Methylene blue indicator
  • HY-W110793
    Dithizone 60-10-6
    Dithizone,for analysis (Diphenylthiocarbazone) is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
    Dithizone
  • HY-W787537
    Leucoberbelin blue I 52748-86-4
    Leucoberbelin blue I (LBB) is a leuco base that is oxidized by manganese through a hydrogen atom transfer reaction forming a colored complex. Leucoberbelin blue I can be used to quantify or confirm the Mn (II) oxides formation.
    Leucoberbelin blue I
  • HY-W874904
    C.I. Solvent Yellow 33 8003-22-3
    C.I. Solvent Yellow 33 is a nontoxic yellow dye that can be used in industrial and several Navy signaling devices.
    C.I. Solvent Yellow 33
  • HY-W009694
    3,5-Dinitrosalicylic acid 609-99-4 99.97%
    3,5-Dinitrosalicylic acid the derivative of salicylic acid. 3,5-Dinitrosalicylic acid is used in the α-amylase assay, carbohydrase assay, and for the colorimetric determination of reducing substances.
    3,5-Dinitrosalicylic acid
  • HY-D0896
    ANS 82-76-8 ≥98.0%
    ANS (8-Anilino-1-naphthalenesulfonic acid) is a competitive inhibitor targeting thyroxine binding globulin (TBG) (Ki=2.09×106 M-1). ANS is used in radioimmunoassay by displacing bound triiodothyronine (T3) to improve detection sensitivity. ANS can block the protein binding site of T3 and release free T3 for antibody recognition. As a fluorescent probe, ANS can specifically bind to the hydrophobic region of proteins (such as membrane proteins) and monitor the dynamics of protein conformation through changes in fluorescent signals. It is widely used in biochemical research and antibacterial material development.
    ANS
  • HY-111391A
    Resazurin sodium, indicator 62758-13-8 98.06%
    Resazurin (Diazoresorcinol) sodium, indicator is a non-toxic, stable, membrane-permeable blue non-fluorescent dye (faintly fluorescent). Resazurin sodium, indicator is used as a redox indicator, can be reduced to pink, highly fluorescent Resorufin (Ex=530-560 nm, Em=590 nm) in living cells. Resazurin sodium, indicator can be used for the detection of cell viability, toxicity, proliferation, migration and invasion in cells (human, plant and animal, bacterial and fungal).
    Resazurin sodium, indicator
  • HY-139109
    IR-783 115970-66-6 99.87%
    IR-783 (ADS 780WS) is a near-infrared (NIR) heptamethine cyanine fluorescent probe. IR-783 significantly inhibits tumour growth and induces apoptosis in MDA-MB-231 xenograft model. IR-783 can be used to study breast cancer.
    IR-783
  • HY-W009938
    Anthrone 90-44-8 99.66%
    Anthrone is an organic compound commonly used as a dye and intermediate. It can be used to make products such as pigments, dyes and fluorescent whitening agents, and is widely used in certain industrial production fields such as textile manufacturing, soap making and paper making. In addition, this compound is also used as a reagent and catalyst in some organic synthesis reactions.
    Anthrone
  • HY-Y1332
    Rochelle salt 6381-59-5 99.1%
    Rochelle salt is an organic-inorganic compound commonly used as a catalyst and complexing reagent. It can be used to catalyze or promote certain chemical reactions, and is widely used in batteries, pharmaceuticals and food industries. In addition, this compound is also used as a substrate or intermediate in some biochemical reactions.
    Rochelle salt
  • HY-W110910
    Eriochrome black T, Indicator 1787-61-7
    Eriochrome black T, Indicator is a complexing agent for metal ions (e.g., Ca2+, Mg2+) and is used as an indicator in complexometric titrations. Eriochrome black T, Indicator forms colored complexes with metal ions through covalent coordination bonds, and indicates the endpoint of the titration by color change. Eriochrome black T, Indicator can be used as an anionic azo dye in photocatalytic degradation studies to evaluate the performance of photocatalysts. The reaction solution of Eriochrome black T, Indicator combined with Mg2+ is initially purple. During loop-mediated isothermal amplification (LAMP), the color changes from purple to sky blue due to the consumption of Mg2+ by the formation of magnesium pyrophosphate, indicating a positive reaction. The optimal concentration of Eriochrome black T, Indicator in LAMP is 60 μM, and the detection limit for Mycobacterium tuberculosis is 1 pg DNA/reaction.
    Eriochrome black T, Indicator
  • HY-W013178
    DCTA monohydrate 125572-95-4 ≥98.0%
    DCTA monohydrate is an organic acid. DCTA refers to N,N,N',N' -tetraacetic acid, which has a strong chelating ability. DCTA monohydrate can be used as a chelating agent and coordination reagent for metal ions. DCTA monohydrate, for example, forms stable complexes with many metal ions, including calcium, magnesium and zinc. DCTA modified with ethylene glycol is selective to calcium ions in the presence of magnesium ions.
    DCTA monohydrate
  • HY-W110927
    Alizarin Red S Indicator (4.3-6.3), IND 130-22-3
    Alizarin red S indicator (C.I. 58005) is a reductively active (quinone-based) anthraquinone dye that forms complexes with metal ions (such as zirconium, calcium) or boric acid to label calcium deposition and perform electrochemical sensing functions. Alizarin Red S undergoes reversible redox reactions (for electrochemical detection) and irreversible chelation (for bone staining). Alizarin Red S is mainly used in bone metabolism research (labeling mineralized tissue), sugar detection (boric acid-sugar competition system) and metal ion sensing (such as zirconium ion detection)， and can be used in osteoporosis and metabolic disease research.
    Alizarin Red S Indicator (4.3-6.3), IND
  • HY-W127711
    Fast Blue B Salt, Dye content ~95% 14263-94-6 99.74%
    Fast Blue B Salt, Dye content ~95% is a coloring agent that dissolves fats and phenolic compounds extracted from rye, as well as diazonium. Fast Blue B Salt, Dye content ~95% can be used for the semiquantification of alkylresorcinols in rye and produces a color precipitate in the presence of acetone.
    Fast Blue B Salt, Dye content ~95%
  • HY-W051140
    Silver sulfate, 99% 10294-26-5 99.58%
    Silver sulfate, 99% (Disilver sulfate, 99%) can be used for colorimetric determination of nitrates, phosphates, and fluoride, or for the determination of chromium and cobalt in water. Silver sulfate, 99% is a kind of biological materials or organic compounds that are widely used in life science research.
    Silver sulfate, 99%
  • HY-W115721
    Rhodizonic acid disodium 523-21-7
    Rhodizonic acid disodium (Sodium rhodizonate dibasic) can be used as an indicator in the volumetric determination of barium and sulfates. Rhodizonic acid disodium is a kind of biological materials or organic compounds that are widely used in life science research.
    Rhodizonic acid disodium
  • HY-W040144
    Bromocresol green 76-60-8
    Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells.
    Bromocresol green