Paraformaldehyde (PFA) is the smallest polyoxymethylene. It is polymerization product of formaldehyde. Paraformaldehyde has been used in the past for disinfecting sickrooms, clothing, linen and sickroom utensils. It has been used as a fumigant and in manufacturing synthetic resins & as a…

p-Toluenesulfonic acid monohydrate is an organic-soluble acid catalyst in organic synthesis. The catalyst has been incorporated in the esterification of carboxylic acids or transesterification of esters. p-Toluenesulfonic acid monohydrate has been used as a reducing agent for the reductive…

Cetylpyridinium chloride is used is in some types of mouthwashes, toothpastes, lozenges, throat sprays, breath sprays, and nasal sprays. It is an antiseptic that kills bacteria and other microorganisms. It has been shown to be effective in preventing dental plaque and reducing gingivitis.

Starch or amylum is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. Starch becomes soluble in water when heated. The granules swell and burst, the semi-crystalline structure is lost and the smaller amylose molecules start leaching out of the granule, forming…

General purpose growth media to isolate and cultivate yeasts and molds from a wide range of sample sources.

p-Aminobenzoic acid is an organic compound used in the treatment of fibrotic skin disorders like Peyronie's disease. It is employed as an intermediate in the synthesis of folate (Vitamin BX), azo dyes and cross linking agents. It is also useful in biomedical sector for the preparation of local…

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.

Trichloroacetic acid is an acetic acid analogue commonly used to precipitate proteins, DNA and RNA. In the presence of SDS Trichloroacetic acid will precipitate proteins which can then be quantified by the Lowry method. The compound has also found uses as a decalcifier and fixative in microscopy,…

Dissolve 8 g of the medium in a liter of deionized or distilled water. Dispense as desired and sterilize at 121°C (15 lbs. of pressure) for 15 minutes. Nutrient Broth is used in many laboratory procedures as is, or with added indicators, carbohydrates, organic liquids, salts, etc. This…

Lecithin from Soy, Refined, is a natural mixture of phospholipids consisting of phosphatidyl choline, phosphatidyl ethanolamine, and phosphatidyl inositol. In soybean lecithin the predominant fatty acid is polyunsaturated linoleic acid, amounting to about 70% of the fatty acids present. …

β-Sitosterol is a common plant steroid that possesses anticholesteremic properties. β-Sitosterol has recently been shown to induce G2/M arrest, endoreduplication, and apoptosis through the Bcl-2 and PI3K/Akt signaling pathways.

Cholic acid is used in the solubilization of membrane-bound proteins in their native state. It is a component for the preparation of liposomes. It has also been used in a study to investigate the elastic deformable vesicles, transfersomes, for transdermal drug delivery.

Carboxymethyl ether cellulose is used in drilling muds, in detergents as a soil-suspending agent, in resin emulsion paints, adhesives, printing inks, textile sizes, as protective colloid in general. As stabilizer in foods. It is used in pharmaceuticals as a suspending agent, tablet excipient,…

Suspend 30 g of the medium in one liter of distilled or deionized water. Mix well. Heat slowly until the medium is dissolved. Dispense and sterilze at 121°C (15 lbs. of pressure) for 15 minutes. Sterilize by autoclave. Tryptic Soy Broth is used for the cultivation of fastidious and…

Tryptone is utillized as a source of nitrogen in many culture media for growing bacteria as well as fungi. The lack of detectable carbohydrates makes this peptone an excellent choice for bacterial studies based on fermentation reactions. Its high level of tryptophan makes it useful in the…

Polyvinylpyrrolidone is a water-soluble polymer made from the monomer N-vinylpyrrolidone. Typically used as thickeners, dispersing agents, detoxicant, complexing agent, lubricants and binders. Polyvinylpyrrolidone is used as an emulsifier and disintegrant for solution polymerization; also for…

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…

L-Ascorbic Acid, Sodium Salt is a vitamin widely distributed in the plant and animal kingdom. L-Ascorbic Acid, Sodium Salt is used as an antimicrobial and antioxidant in foodstuffs, a reductant for the isolation of chloroplasts. It has an effect on the nonspecific immune system. It preserves…

Citric acid is a key metabolic intermediate. Citrate is the starting point of the tricarboxylic acid cycle. Its concentration also coordinates several other metabolic pathways. Citric acid can form complexes with various cations, particularly with iron and calcium. In animals, citric acid improves…

Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Protects cells against the damaging effects of radiation and oxygen radicals Increases the rate of mineralization in osteoblasts Involved in…

Starch is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. It contains Approximately 75% amylopectin & 25% amylose. This polysaccharide is produced by all green plants as an energy store. It is the most common carbohydrate in the human diet and is…

(PDA Agar) Suited for the cultivation of yeasts and molds from dairy products and other foods. It may also be used to induce sporulation in many fungi.

Synonyms: EDTA disodium salt, (Ethylenedinitrilo)-Tetraacetic Acid disodium salt, Cheladrate, Chelaplex III, Chelaton III, Complexon III, d'E.D.T.A. Disodique, Disodium diacid ethylenediaminetetraacetate, Disodium ethylenediaminetetraacetate dihydrate, EDTA-Na₂, Edathamil, Edetate…

Sequestrant for metal ions.

Chloramine T Sodium Salt Trihydrate is a reagent for selective oxidation of methionine. It is used as an antibacterial agent; a topical antiseptic. Capable of oxidative cyclization to produce various heterocycles. Nitrene source for aziridinations and aminohydroxylations. Reactant for Preparation…

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…

Medium used for the isolation of enteric bacilli based on the fermentation of lactose.

α-Ketoglutaric acid disodium salt dihydrate is suitable reagent used in a study to investigate the role of nitric oxide (NO) in mast cell physiology and biochemistry. α-Ketoglutaric acid disodium salt dihydrate (2-Oxoglutaric acid disodium salt) may be used as starting reagent for…

Suspend 24 g of the medium in one liter of distilled or deionized water. Mix well and heat with frequent agitation. Boil for one minute. Sterilize at 121°C (15 lbs. of pressure) for 15 minutes. Potato Dextrose Broth is used for the isolation, enumeration and identification of yeast and…

Sterilize in an autoclave between 118 and 121°C at a pressure of no more than 15 lbs. for 15 minutes. In the case of large volume preparation, increase the time of sterilization but not the temperature or pressure. Cool and pour into Petri dishes. For hemolytic studies, add 5 to 10% sheep or…

Acetic Acid, Glacial is an excellent solvent for many organic compounds. Acetic acid is widely used in manufacturing either as starting material or as a solvent. In the food industry, dilute solutions are used for preparation and preservation. Because acetic acid is a weak acid, it is effective as…

Polyvinylpyrrolidone K 30 is used as thickeners, dispersing agents, detoxicant, complexing agent, lubricants and binders. Polyvinylpyrrolidone is a component of Denhardt′s Solution.