p-nitrophenol is used as an indicator in 0.1% alcohol solutions. 4-Nitrophenol is used as a precursor to prepare phenetidine, acetophenetidne and pH indicator. Its carboxylate ester derivatives are involved as an active component for the construction of amide moieties in peptide synthesis. It is…

2-Hydroxypropyl-beta-Cyclodextrin are non-toxic solubilizers. The solubility of drugs increases linearly with the concentration of 2-Hydroxypropyl-b-cyclodextrin in aqueous buffer. The formation of drug/cyclodextrin complexes is a rapidly reversible reaction and complexes exist both in solution and…

Vitamin K is a group of structurally similar, fat-soluble vitamins. Vitamin K1 is used as a cofactor in the formation of coagulation factors II (prothrombin), VII, IX and X; anticoagulant factors protein C and S and as a cell signaling factor.

Agarose is a purified linear galactan hydrocolloid isolated from agar or agar-bearing marine algae. Allows recovery of active DNA after separation, with minimal inhibition of restriction and ligation enzymes Suitable for both analytical and preparative electrophoresis procedures Good…

Lysozyme (muramidase) hydrolyzes preferentially the β-1,4 glucosidic linkages between N-acetylmuramic acid and N-acetylglucosamine which occur in the mucopeptide cell wall structure of certain microorganisms, such as Micrococcus lysodeikticus. Extracts group specific antigens …

Rifamycin SV is a broad-spectrum semisynthetic antimicrobial agent of the rifamycin group. Rifamycin SV is used to study potential genes, such as rif15 and rif16, which may be involved in the conversion of rifamycin SV into rifamycin B. It is a potential treatment for traveler’s diarrhea…

Linoleic acid (LA) is an unsaturated n-6 fatty acid; it belongs to one of the two families of essential fatty acids. The body cannot synthesize linoleic acid from other food components. Linoleic acid can be used to show the antioxidant effect of natural phenols.

D-Biotin is a growth factor present in small amounts in every living cell. Involved in carboxylation reactions Occurs mainly bound to proteins or polypeptides Abundant in the liver, kideny, pancreas, yeast, and milk Levels are higher in cancerous tumors than in normal tissues …

Calcein is used as an indicator for the determination of calcium by titration with EDTA. Suitable for fluorometric determination of calcium. Calcein does not fluoresce in strong alkaline solution, but an intense fluorescence appears in the presence of alkaline earths, especially calcium. The…

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…

Fatty Acid Free, ≥98%, Off-white Powder, sometimes with greenish hue Albumin bovine fraction V is the only commercially available Bovine Serum Albumin that is essentially fatty acid free. While other suppliers may make claims of fatty acid free albumin with fatty acids content of <0.2…

Streptomycin Sulfate is an aminoglucoside antibiotic in which streptidine is linked glycosidically to the disaccharide streptobiosamine. Inhibit bacterial protein synthesis Gram positive bacteria Gram negative bacteria Mode of Action: Inhibits prokaryote protein synthesis. Binds to…

Safranine O is a biological stain used in histology, cytology, bacteriology. It is a redox and adsorption indicator.

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…

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…

p-Iodonitrotetazolium Violet is used as a electron acceptor for the colorimetric assay of various dehydrogenases.

Bromocresol Green is a dye of the triphenylmethane family (triarylmethane dyes). It binds quantitatively with human albumin forming an intense blue-green complex with an absorbance maximum at 628 nm. Bromocresol Green is useful in a variety of colorimetric detection technologies. It is used as 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 …

Nalidixic acid sodium salt is an antibacterial agent (synthetic quinolone antibiotic), which is inhibitor of bacterial DNA polymerase (DNA gyrase) & avian myeloblastoma virus reverse transcriptase. Inhibits nucleic acid and protein synthesis in Saccharomyces cerevisiae. Typically used at a…

Spectinomycin sulfate is an antibiotic which binds to the 30S subunit to cause misreading. Spectinomycin sulfate is a broad spectrum antibiotic that inhibits protein synthesis (elongation) by binding to the bacterial 30S ribosomal subunit and interfering with peptidyl tRNA translocation.

Bromocresol purple binds quantitatively with human serum albumin forming a stable complex with absorbance maximum at 600 nm. The intensity of the color produced is directly proportional to the albumin concentration in the sample. Bromocresol Purple is used as a pH indicator (5.2-6.8 : yellow to…

Cellulase refers to a group of enzymes which, acting together, hydrolyze cellulose. The b-glucosidases, including cellobiose, are primarily active on the smaller molecular weight cellulose hydrolysates. During cellulose breakdown they are active on the dimers and oligomers of cellulose. …

Tetracycline is a broad spectrum polyketide antibiotic with clinical uses in treating bacterial infections such as Rocky Mountain spotted fever, typush fever, tick fevers, Q fever, and Brill-Zinsser disease and to treat upper respiratory infections and acne. It has been used in studies of multidrug…

Vancomycin inhibits bacterial mucopeptide biosynthesis. Vancomycin is a glycopeptide antibiotic that blocks bacterial cell wall biosynthesis at the level of peptidoglycan biosynthesis. It inhibits incorporation of terminal D-alanyl-D-alanine moieties of the NAM/NAG-peptides. It is effective against…

Chlortetracycline hydrochloride has antimicrobial action similar to tetracycline hydrochloride, but it is somewhat less active against many Gram-negative organisms. It was first isolated from the culture of Streptomyces aureofacien. Cell-permeable fluorescent probe for Ca2+ for measuring calcium…

β-estradiol is a potent mammalian estrogenic hormone produced by the ovary. Triggers the production of gonadotropins leading to ovulation. β-Estradiol is used to study cell differentiation and transformations (tumorigenicity). The pharmacology and HPLC determination of β-Estradiol…

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…

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…

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…

Alcian Blue 8GX is a cationic dye used to quantitatively determine glycosaminoglycans by forming insoluble complexes in solution. Alcian Blue 8GX can be used to determine proteins based on their Resonance Light Scattering by strongly enhancing the signals. It is useful as a bacterial stain, and as…

Folic acid, also known as folate, is a B vitamin that can be found in a variety of fruits and vegetables. It can also be chemically synthesized. Folate, a watersoluble vitamin, helps the body form red blood cells and aids in the formation of genetic material within every body cell. Folic Acid is a…

Kanamycin sulfate is an antimicrobial agent effective against Gram-negative and Gram-positive bacteria and mycoplasma. It binds to the 70S ribosomal subunit, inhibits translocation, and elicits miscoding. Cross-resistance occurs between kanamycin and neomycin, framycetin, and paromomycin, and…