267 Results for: "Ammonium Hydroxide"

Supplier: TCI America

[for Biochemical Research]
CAS Number: 15178-76-4
MDL Number: MFCD00036912
Molecular Formula: C13H29NO3S
Molecular Weight: 279.44
Purity/Analysis Method: >98.0% (HPLC,N)
Form: Crystal
Melting point (°C): 205

Supplier: Ward's Science

CAS Number: 20667-12-3
Formula Weight: 231.74
Formula: Ag2O
Hazard Info: Oxidizer
Density (g/mL): 7.22
Solubility: Ammonium Hydroxide, Nitric Acid, Sodium Thiosulfate Solution, Water
Synonyms: Disilver Oxide, Silver(I) Oxide
Shelf Life (months): 36
Storage: Yellow

Supplier: Ward's Science

CAS Number: 7791-20-0
Formula Weight: 237.71
Formula: NiCl2·6H2O
Hazard Info: Suspected Human Carcinogen, Toxic
Density (g/mL): >1
Freezing Point (°C): 1001
Solubility: Water, Alcohol, and Ammonium Hydroxide
Synonyms: Nickelous Chloride 6-Hydrate
Shelf Life (months): 12
Storage: Blue

Supplier: Spectrum Chemical Mfg. Corp.

Tetramethylammonium Hydroxide, Pentahydrate, also known as TMAH, is a quaternary ammonium salt that is used for the anisotropic etching of silicon and as a quaternary amine catalyst in organic synthesis. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use. These materials may or may not have a Certificate of Analysis available.

Supplier: Ward's Science

CAS Number: 7783-90-6
Formula Weight: 143.32
Formula: AgCl
Hazard Info: Toxic
Density (g/mL): 5.56
Boiling Point (°C): 1550
Freezing Point (°C): 455
Solubility: Water, Ammonium Hydroxide, Sulfuric Acid, Sodium Thiosulfate and Potassium Bromide Solution
Synonyms: Chloride Salt of Silver
Shelf Life (months): 36
Storage: Green

Supplier: Ward's Science

CAS Number: 13478-00-7
Formula Weight: 290.81
Formula: Ni(NO3)2·6H2O
Hazard Info: Suspected Human Carcinogen, Toxic
Density (g/mL): 2.065
Boiling Point (°C): 138
Freezing Point (°C): 57
Solubility: Water, Alcohol, and Ammonium Hydroxide
Synonyms: Nickel Nitrate Hexahydrate, Nickelous Nitrate 6-Hydrate
Shelf Life (months): 12
Storage: Yellow

Supplier: AAT Bioquest

There are several ways of labeling an oligonucleotide with fluorescein. The choice of label is diversified further, depending on the spectral requirements. 5'-fluorescein-CE phosphoramidite, derived from the single isomer 6-carboxyfluorescein, 5'-hexachlorofluorescein-CE phosphoramidite (HEX) and 5'-tetrachlorofluorescein-CE phosphoramidite (TET) can all be used to efficiently label an oligonucleotide at the 5'-end. Labeling the 3'-end of an oligo with fluorescein can be achieved using 3'-Fluorescein CPGs. Standard cleavage and deprotection with ammonium hydroxide liberates the fluorescein-labeled oligo when using any of these supports.

Supplier: MP Biomedicals

Dissolve the peptide in distilled, oxygen free water (oxygen free water is recommended to help prevent oxidation of the Cys groups). The concentration should be high enough to allow for addition of buffer after the product is dissolved completely. If necessary, a few drops of dilute acetic acid or ammonium hydroxide can be added to help solubilize the peptide. Brief sonication can also help in solubilization. Buffer or saline should be added only after the peptide is fully in solution. Solutions should be kept slightly basic to avoid degradation. Long term storage of solutions is not recommended.

Supplier: MP Biomedicals

A vitamin/enzyme cofactor found in milk, eggs, malted barley, liver, kidney, heart, leafy vegetables. Richest natural source is yeast. Occurs in the free form only in the retina of the eye, in whey, and in urine; bioactive forms occurring in tissues and cells are riboflavin monophosphate and flavine-adenine dinucleotide. Used as a photoinitiator for polymerization of polyacrylamide gels. It forms free radicals in aqueous solution in the presence of light. Riboflavin photodecomposes to leucoflavin. No free radicals are formed in the absence of oxygen but traces of oxygen allows for leucoflavin to reoxidize with free-radical generation. The catalysts TEMED or DMAPN are commonly added to speed up the free radical formation. The free radicals will cause acrylamide and bis-acrylamide to polymerize to form a gel matrix which can be used for electrophoresis. Riboflavin is commonly used in the stacking gel for non-denaturing polyacrylamide electrophoresis because native proteins can be senstive to persulfate ions from ammonium persulfate. Another advantage of riboflavin over ammonium persulfate is that it will not start polymerization until the gel is illuminated. Riboflavin causes less denaturing than other initiators. Gel strength can be improved when used with PTO (Pyrithione). Soluble in 0.1 M Sodium Hydroxide (50 mg/ml - clear, yellowish-orange solution); only slightly soluble in water.

Supplier: MP Biomedicals

Storage: +4 °C
D-Biotin is a growth factor present in small amounts in every living cell. It is involved in naturally occurring carboxylation reactions. It occurs mainly bound to proteins or polypeptides. It is more abundant in the liver, kidney, pancreas, yeast and milk. Biotin levels are higher in cancerous tumors than in normal tissues. It is inactivated by binding to avidin.
D-Biotin may be used to elute proteins from avidin/streptavidin resins. It is widely used for dietary supplements and fortified foods. It is also used for tablets and hard-shell capsule preparation due to its pharmaceutical properties.
Essential vitamin that is important for amino acid and energy metabolism, and fatty acid synthesis. It is a prosthetic group in four mammalian carboxylase families and facilitates the binding and transfer of carbon dioxide.
Soluble in water (22 mg/100 mL), ethanol (80 mg/100 mL), more soluble in hot water and in dilute alkalies; insoluble in other common organic solvents. Soluble in 2 M Ammonium hydroxide (50 mg/mL - clear, colorless solution), dimethylformamide (1.7 mg/mL).

Supplier: AVANTOR PERFORMANCE MATERIAL LLC

pH adjusters are used to adjust the pH of formulations. This category includes acids that are notoriously difficult to source as truly cGMP-produced and amino acids that most companies do not fully test for EP, BP and JP. Avantor provides all that and more.

Supplier: Thermo Scientific Chemicals

Ammonia solution 28%

Supplier: AVANTOR PERFORMANCE MATERIAL LLC

pH adjusters are used to adjust the pH of formulations. This category includes acids that are notoriously difficult to source as truly cGMP-produced and amino acids that most companies do not fully test for EP, BP and JP. Avantor provides all that and more with our cGMP-produced acids and mutli-compendial amino acids.

Supplier: Thermo Scientific Chemicals

N-Hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulphonate(sulfobetaine-16, SB-16) 98%

Supplier: MilliporeSigma

Supplier: MilliporeSigma

Supplier: Honeywell Research Chemicals

Ammonia solution 25 - 30% (NH₃ basis) in water, Puriss., meets analytical specification of Ph.Eur., Fluka™

Supplier: Honeywell Research Chemicals

Packed in coated, shock- and leak-protected glass bottle

Supplier: MilliporeSigma

Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).

Supplier: Ambeed

N-Hexadecyl-N,N-dimethyl-3-ammonio-1-propanesulphonate (Sulfobetaine-16, SB-16) 97%

Supplier: Honeywell Research Chemicals

Ammonia Solution, Grade: Puriss. P.a. Plus, CAS Number: 1336-21-6, Molecular formula: NH4OH, Molar mass: 146.14 g/mol Ammonia aqueous, Ammonia water, >/=25% NH3 in H2O, Appearance/color: Colorless, Size: 1L(poly bottle)

Supplier: Honeywell Research Chemicals

Ammonia Solution, Purity: 28.0-30.0% NH3 basis, Grade: ACS Reagent, CAS Number: 1336-21-6, MF: NH4OH, Molar mass: 35.05 g/mol, Synonyms: Ammonia aqueous, Ammonia water, Appearance/color: Colorless, Application: Laboratory chemica

Supplier: Abcam

Zwitterionic detergent. Solubilizes membrane proteins. Retains zwitterionic characteristics over wide pH range.

Supplier: Honeywell Research Chemicals

TraceSELECT™ Ultra and TraceSELECT

Supplier: Thermo Scientific Chemicals

N-Tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulphonate (Sulfobetaine-14, SB-14) 97%

Supplier: Spectrum Chemical Mfg. Corp.

Strong Ammonia Solution, NF has many uses such as in topical pharmaceutical solutions destined for treating insect bites. All Spectrum Chemical NF products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities

Supplier: Ambeed

N-Tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulphonate (Sulfobetaine-14, SB-14) 98%

Supplier: Spectrum Chemical Mfg. Corp.

Ammonia Solution, FCC is a solution of Ammonia in water. It has many uses, but in food production it is used primarily as a leavening agent. Spectrum Chemical offers over 300 Food Grade (FCC) chemical ingredients packaged in laboratory size bottles to production drum quantities and are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.

Supplier: TCI America

CAS Number: 13177-41-8 MDL Number: MFCD00043218 Molecular Formula: C23H49NO3S Molecular Weight: 419.71 Purity/Analysis Method: 97.0% (N) Form: Crystal Melting point (°C): 260 Flash Point (°C): 110

Supplier: TCI America

N-(3-Sulfopropyl)-N-methacroyloxyethyl-N,N-dimethylammonium betaine ≥98.0% (by total nitrogen and titration analysis)