Congo red is a secondary diazo dye. It is a High Purity Biological Stain. Congo Red is suitable for staining cytoplasm, erythrocytes and collagen. Useful probe for conformational studies of nucleotide-binding enzymes.

* Strong chaotropic agent useful for the denaturation and subsequent refolding of proteins * Used in the isolation of RNA * Solubilizes insoluble or denatured proteins such as inclusion bodies * Can be used for the recovery of periplasmic proteins

Melibiose has been used in a study to improve the preparation of benzoylated ethyl 1-thioglycosides. It has also been used in a study to investigate the effect of water plasticization on the molecular mobility and crystallization tendency of amorphous disaccharides.

D-(+)-Trehalose dihydrate is a natural alpha-linked non –reducing disaccharide formed by an α,α-1,1-glucoside bond between two α-glucose units which yields 2 moles of D-glucose upon acid hydrolysis. Has 90% of the calorific content of sucrose. Inhibits polyglutamine-mediated…

Indole-3-acetic acid (IAA) is the most common, naturally-occurring, plant growth regulator - as a principal auxin of higher plants. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. Chemically, IAA is a carboxylic acid in which the carboxyl…

2,3,5-Triphenyltetrazolium Chloride is a redox indicator. In the TTC assay (also known as TTC test or tetrazolium test), TTC is used to differentiate between metabolically active and inactive tissues. The white compound is enzymatically reduced to red TPF (1,3,5-triphenylformazan) in living tissues…

Dextran sulfate sodium salt, or DSS, is a synthetic sulfated branched polysaccharide derivative of dextran that has multiple uses in biomedical and clinical research. One important property of DSS is to trigger colitis in mice and rats when administered in drinking water. DSS binds to…

Boric acid has a single boron; its salt forms complex equilibria in solution, with the ion B4O7-2 being the predominant species. Boric acid is used for weatherproofing wood and fireproofing fabrics; as a preservative; manufacturing of cements, crockery, porcelain, enamels, glass, borates,…

β-D-Glucose is critical for production of proteins and the lipid metabolism. β-D-Glucose is a main source of energy for living organisms and is combined into glucosides, disaccharides, oligosaccharides, polysaccharides (cellulose and starch), and glycogen. D-Glucose, a naturally…

Deoxyribonucleic Acid is a polynucleotide . It is an essential component of chromosomes in cell nuclei. It is the carrier of genetic material. It contains information in chemical code to direct the development of the cell according to its inheritance. The purine and pyrimidine bases of the…

Ampicillin is a semi-synthetic derivative of penicillin, active as a broad-spectrum antibiotic. It is inactivated by beta-lactamases and for this reason a beta-lactamase inhibitor should be considered when using ampicillin. Against gram-positive bacteria, ampicillin has a similar mode of action as…

Cholesterol is the principal sterol of the higher animals, found in all body tissues. It is the main constituent of gallstones and all biological membranes. Approximately 25% of total brain lipid is cholesterol. Cholesterol, followed by the chemical suffix -ol for an alcohol, is an organic chemical…

Physiological chelating agent for heavy metals. It is used as an antirheumatic and as a chelating agent in Wilson′s disease. It is used as a copper chelator to form mixed disulfides with cysteine or other sulfide media components. It is used to inactivate protein-1 DNA binding and to…

Benzalkonium Chloride is a quaternary ammonium salt. It is a cationic surface active agent and germicide. It is not effective against gram-negative bacteria or picornaviruses and it is not recommended for treatment of sanitizing critical or semicritical medical instruments. It has been reported…

This α-amylase product is a liquefying diastase supplied as a dry, free-flowing powder having high uniformity and excellent storage stability. The general procedure for the enzymatic liquefaction of starch is the same, regardless of the nature of the end product. The degree of conversion…

β-NAD is one of the biologically active forms of nicotinic acid. Coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols Inhibitory neurotransmitter in visceral smooth muscle Acts as a hydrogen acceptor, forming NADH …

Albumins are a group of acidic proteins which occur in the body fluids and tissues of mammals and in some plant seeds. Serum and plasma albumin is carbohydrate-free and comprises 55-62% of the protein present. However, only about 40% of the total albumin in the body is in the circulating plasma at…

Isoleucine provides a source of nitrogen for transport to the liver and kidney.

Chitosan is a cationic marine polymer derived form the shells of crustaceans (e.g., crabs). MP's chitosan is a partially de-acetylated chitin formed by the reaction of chitin with concentrated alkali. Chitin is a high molecular weight linear polymer of anhydro-N-acetyl-glucosamine. Chitin…

Alanine is a nonessential amino acid that plays a key role in the glucose-alanine cycle between muscle tissue and the liver. In amino acid-degrading tissues such as muscle, amino groups are pooled as glutamate by transamination reactions. Used as an amino donor in conversion of…

Chromium potassium sulfate is the potassium double sulfate of chromium. Chromium alum is used in the tanning of leather. It was also used in gelatine emulsions in photographic film as hardener.

Pyruvic acid is an intermediate in sugar metabolism and in enzymatic carbohydrate degradation (alcoholic fermentation) where it is converted to acetaldehyde and CO2 by carboxylase. In muscle, pyruvic acid (derived from glycogen) is reduced to lactic acid during exertion, which is reoxidized and…

Glutathione suppresses human immunodeficiency virus expression in chronically infected monocytic cells. It is a useful tripeptide involved in many aspects of metabolism, including transport of g-glutanyl amino acids and reductive cleavage of disulfide bonds.

2,6-dichlorophenolindophenol (DCPIP) is a blue chemical compound used as a redox dye. In Oxidized form DCPIP is blue; whereas in reduced form DCPIP is colorless. The rate of photosynthesis can be measured by the rate at which this dye changes color (is reduced) when exposed to light in a…

Lactase is an enzyme preparation produced by Aspergillus oryzae fermentation. Hydrolyzes Lactose Produces β-D-Galactose and a-D-Glucose One unit will hydrolyze 1.0 µmole of o-nitrophenyl-beta-D-galactoside to o-nitrophenol per minute at pH 4.5 and 30°C …

Tricine, a zwitterionic buffer, was first prepared by Good for use as a buffer for chloroplast reactions. It is structurally similar to Tris, but is much less inhibitory at high concentrations. The name tricine comes from tris and glycine from which it was derived. Tricine can be used in…

Agarose is a linear polymer consisting of alternating D-galactose and 3,6-anhydro-L-galactose units. Agarose is a purified linear galactan hydrocolloid isolated from agar or agar-bearing marinealgae. As a gelling agent, agarose is used: 1.) to separate nucleic acids electrophoretically because…

TEMPO is a catalytic oxidant in the iodobenzene diacetae oxidation of nerol to neral. TEMPO has been utilized in the catalytic oxidation of primary alcohols to aldehydes. TEMPO reacts preferentially with carbon-centered radicals.  

Coomassie Blue R-250 is a triphenylmethane dye used extensively in SDS-PAGE for the analysis of proteins. Brilliant Blue R has been used for many years for staining proteins on polyacrylamide electrophoresis gels. Improvement of sensitivity and background have been accomplished using Brilliant…

Ammonium persulfate is a strong oxidizing agent. It is a radical initiator. Ammonium persulfate is a polymerization catalyst used with TEMED for polyacrylamide gel formation. APS has also been utilized to study protein-protein interactions via photoinitiated crosslinking chemistry. Other…

MOPS is a zwitterionic amino acid which acts as one of the "Good" buffers. It is a structural analog to MES. However, MOPS is a more suitable biological buffer than MES because the pH range is closer to pH 7.4.