United States Biological Corporation
United States Biological Corporation Nematode Growth Medium (NGM), Powder, 500g
A standard preparation for use in Nematode growth studies. Appearance: Light tan to pale yellow, homogeneous, free flowing powder Solubility without autoclaving: Light tan, incomplete Solubility with autoclaving: Light tan, clear, complete pH with autoclaving: As Reported Protocol: Cooling the N1000 solution after autoclaving: Place the sterile N1000 solution into a 58C water bath. N1000 solution needs to completely cool to the desired temperature (58C). If the medium is not properly cooled when the CaCl2, MgSO4 and K2HPO4 are added, crystals will form in the agar. Further preparing the medium: Once the N1000 solution has cooled to 58C, place flask(s) onto stir plate(s). Maintain temperature at 58C. Add the following: a) Sterile 1M Phosphate buffer*, pH 6.0: 25ml/liter N1000 solution b)Sterile 1M CaCl2: 1ml/liter N1000 solution c) Sterile 1M MgSO4: 1ml/liter N1000 solution.
United States Biological Corporation Ames Medium w/L-Glutamine, Powder, 25 L
Ames' medium was formulated to support retinal tissue in relatively short-term culture. Rabbit retina has been incubated in Ames' medium for over 2 days with its metabolism and electrical responses to light stimuli well maintained. This mixture is a medium of choice for maintaining central nervous system tissue in vitro.
United States Biological Corporation Nonidet-P40 substitute, 9036-19-5, 500mL
Reagent Grade, Molecular Weight 603, Nonidet-P40 is an anhydrous liquid nonionic surface- active agent produced by the reaction of octyl phenol with 8.5-9.5 moles of ethylene oxide. Nonidet-P40 (NP-40) is a nonionic surfactant used in the isolation of membrane complexes. This product has been reformulated to be eco-friendly. The only observable differences are that the viscosity and handling characteristics are somewhat modified. Due to its nonionic structure, this product is compatible with anionic surfactants and is stable in the presence of acids, bases, and salts. It should not be mixed with concentrated oxidizing or reducing agents since the mixture of these compounds with organic compounds could form a potentially explosive mixture. Nonidet-P40 is an effective emulsifier for solvents such as xylene.
United States Biological Corporation NP40 SUBSTITUTE 100ML
Nonidet-P40 is an anhydrous liquid nonionic surface- active agent produced by the reaction of octyl phenol with 8.5-9.5 moles of ethylene oxide. Nonidet-P40 (NP-40) is a nonionic surfactant used in the isolation of membrane complexes. This product has been reformulated to be eco-friendly. The only observable differences are that the viscosity and handling characteristics are somewhat modified. Due to its nonionic structure, this product is compatible with anionic surfactants and is stable in the presence of acids, bases, and salts. It should not be mixed with concentrated oxidizing or reducing agents since the mixture of these compounds with organic compounds could form a potentially explosive mixture. Nonidet-P40 is an effective emulsifier for solvents such as xylene. General Specifications: Appearance: Colorless to pale yellow, clear, viscous liquid pH (1% aqueous): 5-7 Water: 0.50% Specific Gravity (25C): 1.065 Viscosity (cP, 25C): ~246 Surface Tension (0.1% aqueous, 25C): ~30
United States Biological Corporation BSA 100G
Albumin, Bovine Serum, Fatty Acid Free, is our highest purity albumin specifically designed for use in all applications, including Immunology, Tissue Culture and Microbiology. Produced in the USA. Applications include Immunohematology, Serology, RIA, Blood Banking, ELISA Blocking and Protein Control formulation. Appearance: White to tan powder Albumin: 98% Fatty Acid: 0.05% IgG: None Detected pH: 6.7-7.3 Moisture: 5% Protease: None Detected Endotoxin: 3EU/mg Conductivity (10%): 3000uS Sterility: Filtered before lyophilization through a 0.2um membrane filter. Sodium (10%): As reported Chloride (10%): As reported Calcium (10%): As reported Iron (10%): As reported Vesicular Stomatitis Virus: Negative Bluetongue Virus: Negative Microbial Growth: 3CFU/ml Country of Origin: United States Certificate of Origin: All raw material used in the manufacturing of Bovine Serum Albumin, Fatty Acid Free is of United States origin and was manufactured in USDA-registered plants.
United States Biological Corporation Zymolyase 100T Concentrate, 1 mL
Zymolyase, produced by a submerged culture of Arthrobacter luteus, is an enzyme preparation which effectively lyses cell walls of viable yeast cells. An essential enzyme responsible for lysis of viable yeast cells in this preparation is b-1, 3-glucan laminaripentaohydrolase.
United States Biological Corporation DROP OUT MIX - LEUCINE 100G
Drop-out Mix Complete (DOC) is used as a supplement to Drop-out Base for making synthetic, complete media formulations in accordance with Methods in Yeast Genetics. All lots are quality control tested using the appropriate yeast strains and transformants. Convenient Powders Useful for One-Hybrid and Two-Hybrid Systems Competitively Priced...! Dust-Free: Specially milled powder blends are designed to eliminate or greatly reduce airborne particulates Homogeneous: Proprietary blending technology ensures complete mixing of components Companion Products: D9500: Drop-out Base With Glucose (Powder) D9501: Drop-out Base With Raffinose (Powder) D9502: Drop-out Base With Galactose (Powder) D9510: Drop-out Base With Glucose and Agar (Powder) D9511: Drop-out Base With Raffinose and Agar (Powder) D9512: Drop-out Base With Galactose and Agar (Powder) Y2020: Yeast Nitrogen Base w/ AA & w/ AS, w/o Carbohydrate (YNB) (Powder)
United States Biological Corporation Ames Medium w/L-Glutamine (Powder), 100 L
Ames' medium was formulated to support retinal tissue in relatively short-term culture. Rabbit retina has been incubated in Ames' medium for over 2 days with its metabolism and electrical responses to light stimuli well maintained. This mixture is a medium of choice for maintaining central nervous system tissue in vitro.
United States Biological Corporation Erythromycin A 9,11-Imino Ether, 161193-44-8
Molecular Formula C37H66N2O12, Purity ≥95%, Molecular Weight 730.93, Melting Point >134ºC (dec.), Solubility: Chloroform (slightly), DMSO (Slightly) Methanol (slightly). Erythromycin A 9,11-Imino Ether is an impurity in the synthesis of Erythromycin, a macrolide antibiotic with broad spectrum of antibacterial activity.
United States Biological Corporation Dulbecco’s MEM Powder, 10 L
Dulbecco’s MEM is the most widely used modification of BME. It contains a 4-fold higher concentration of amino acids and vitamins. Non-essential amino acids and certain essential trace elements were added. The bicarbonate concentration was increased. The standard formula for DMEM is with 1000mg/ml glucose. DMEM was originally developed for the culture of mice embryonic cells. Today, it finds a broad application of serum free culture of normal and transformed mouse and chicken cells.
United States Biological Corporation DMEM F12 W/OUT GLUCOSE 10L D
Dulbecco’s MEM is the most widely used modification of BME. It contains a 4-fold higher concentration of amino acids and vitamins. Non-essential amino acids and certain essential trace elements were added. The bicarbonate concentration was increased. The standard formula for DMEM is with 1000mg/ml glucose. DMEM was originally developed for the culture of mice embryonic cells. Today, it finds a broad application of serum free culture of normal and transformed mouse and chicken cells.
United States Biological Corporation Erythromycin A 9,11-Imino Ether | 161193-44-8 | 5 mg
Erythromycin A 9,11-Imino Ether | Purity: ≥95% | Mol Wt: 730.93 | 161193-44-8 | 5 mg
United States Biological Corporation APOLIPOPROTEIN C-III
Apolipoprotein C-III (APOC3, Apo-CIII, Apolipoprotein C3) (Biotin) Pab Rb xHu
United States Biological Corporation ANTIBDY RAPID LBLING, CONJ KIT
Antibody Rapid Labeling, Conjugation Kit, MaxLight™ 405 3 x 100ug
United States Biological Corporation Chick Embryo Extract, Ultrafiltrate, Liquid, 100 mL
Chick Embryo Extract, Ultrafiltrate is used as a supplement in some growth media formulations. It is prepared by blending 11-14 day old chick embryos in a balanced salt solution (3X embryo volume). The solution undergoes centrifugation to remove larger particles and debris. The supernatant is subjected to an ultrafiltration step with a 10kD MW cutoff to remove protein from the solution, producing a clear, amber liquid. This liquid is sterile-filtered.