Sodium Phosphate Dibasic Anhydrous

Product Description
Synonym: 2-Hydroxy-1,2,3-propanetricarboxylic acid monohydrate
Application: A useful buffer component for antigen and epitope unmasking
CAS Number: 5949-29-1
Purity: ≥98%
Molecular Weight: 210.14
Molecular Formula: C6H8O7•H2O

Citric Acid Monohydrate is an acidic compound from citrus fruits; as a starting point in the Krebs cycle, citrate is a key intermediate in metabolism. Citric acid is one of a series of compounds responsible for the physiological oxidation of fats, carbohydrates, and proteins to carbon dioxide and water. It has been used to prepare citrate buffer for antigen retrieval of tissue samples. The citrate solution is designed to break protein cross-links, thus unmasking antigens and epitopes in formalin-fixed and paraffin embedded tissue sections, and resulting in enhanced staining intensity of antibodies. Citrate has anticoagulant activity; as a calcium chelator, it forms complexes that disrupt the tendency of blood to clot. May be used to adjust pH and as a sequestering agent for the removal of trace metals.

Formula

Formula
Physical State : Solid
Solubility : Soluble in water (59.2 g/100 ml) at 20° C, ethanol, ether, and water (84.0 g/100 ml) at 100° C.
Storage : Desiccate at room temperature
Melting Point : 153° C(anhydrous)
Density : 1.54 g/cm3
Refractive Index : n20D 1.36 (lit.)

Sodium Phosphate Dibasic Dihydrate

Product Description
Synonym: Disodium hydrogen phosphate dihydrate
Application: A reagent with high buffering capacity
CAS Number: 10028-24-7
Purity: ≥98%
Molecular Weight: 177.99
Molecular Formula: Na2HPO4•2H2O

Sodium phosphate dibasic dihydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic (sc-202342, sc-215883 or sc-251042) in the preparation of biological buffers. Used in many applications including the purification of antibodies.

Formula

Formula
Appearance : Granules
Storage : Store at room temperature

Sodium Sodium Phosphate Monobasic Anhydrous

Product Description
Synonym: Monosodium phosphate; Sodium dihydrogen phosphate
Application: A high buffering capacity reagent used in molecular biology, biochemistry, and chromatography
CAS Number: 7558-80-7
Purity: ≥99%
Molecular Weight: 119.98
Molecular Formula: NaH2PO4

Sodium phosphate monobasic is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate monobasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Dibasic (sc-203277, sc-203402, sc-236917, sc-236918) in the preparation of biological buffers. Used in many applications including the purification of antibodies.

Formula

Formula
Appearance : Powder
Physical State Solid
Storage : Store at room temperature

Sodium Phosphate Monobasic Dihydrate

Product Description
Synonym: Sodium dihydrogen phosphate dihydrate; Monosodium phosphate dihydrate
Application: A high buffering capacity reagent
CAS Number: 13472-35-0
Molecular Weight: 156.01
Molecular Formula: NaH2PO4•2H2O

Sodium phosphate monobasic dihydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Dibasic (sc-203277, sc-203402, sc-236917, sc-236918) in the preparation of biological buffers. Used in many applications including the purification of antibodies.

Formula

Formula
Physical State Solid
Storage : Store at room temperature

Sodium Phosphate Monobasic Monohydrate

Product Description
Synonym: Monosodium phosphate, Sodium dihydrogen phosphate monohydrate
Application: A reagent with very high buffering capacity
CAS Number: 10049-21-5
Purity : >98%
Molecular Weight: 137.99
Molecular Formula: NaH2PO4•H2O

Sodium Phosphate, Monobasic (monohydrate) is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate monobasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Dibasic (sc-203277, sc-203402, sc-236917, sc-236918) in the preparation of biological buffers. Used in many applications including the purification of antibodies.

Formula

Formula
Appearance Crystalline powder
Physical State Solid
Solubility : Soluble in water. Insoluble in alcohol.
pH : 4.1-4.5
Storage : Store at room temperature
Melting Point : 100° C
Boiling Point : 204° C

Sodium Phosphate Tribasic Dodecahydrate

Product Description
Synonym: Trisodium phosphate dodecahydrate
Application: Often used in the formulation of various buffers
CAS Number: 10101-89-0
Purity : >97%
Molecular Weight: 380.12
Molecular Formula: Na3PO4 12H2O

Sodium phosphate tribasic dodecahydrate is also known as trisodium phospate or TSP. It is highly soluble in water and widely used as a cleaning agent. The pH of a 1% solution is typically around 12, making this reagent sufficiently alkaline for saponification of grease and oils. Often used in the formulation of various buffers; complementary buffer components may include: Sodium phosphate monobasic (sc-215883; sc-251042), Sodium phosphate dibasic (sc-203277; sc-236917) or Potassium Phosphate, Dibasic (sc-203210). Trisodium phosphate is used in the isolation of mycobacteria, including culturing of tubercle bacilli. Has been used as a protein precipitant in certain applications and in co-precipitation and fractionization of nucleotides. May be used for the preservation of biologically active soil samples. Because of the alkaline pH, TSP disrupts cytoplasmic and outer membranes of Salmonella enterica cells making it useful in preventing the spread of bacteria. Anhydrous form also available: Trisodium phosphate (sc-251041)

Formula

Formula
Appearance Crystalline powder
Physical State Solid
Solubility : Soluble in water (258 mg/ml at 20° C). Insoluble in alcohol.
Storage : Store at room temperature
Melting Point : ~75° C (dec.)
Boiling Point : 158° C at 760 mmHg (Predicted)
Density : 1.62 g/cm3 at 25° C (lit.)

Potassium Phosphate Dibasic Anhydrous

Product Description
Synonym: Dipotassium hydrogenphosphate; Dipotassium phosphate; sec.-Potassium phosphate
Application: A reagent with very high buffering capacity widely used in molecular biology
CAS Number: 7758-11-4
Purity : ≥98%
Molecular Weight: 174.18
Molecular Formula: K2HPO4

Potassium Phosphate, Dibasic, Anhydrous (K2HPO4) is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications, but with the following limitations: precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that KP buffers offered improved pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.

Formula

Formula
Appearance Powder
Physical State Solid
Solubility : Soluble in water (1600 g/l) at 20° C, and ethanol (Slightly soluble).
Storage : Desiccate at room temperature
Melting Point : 340° C
Boiling Point : 158° C at 760 mmHg (Predicted)
Density : 2.3 g/cm3
pK Values : pKa: 1.97, pK1: 2.15(25° C), pK2: 6.82(25° C), pK3: 12.38(25° C)

Potassium Phosphate Monobasic

Product Description
Synonym: Potassium acid phosphate
Application: A useful reagent in formulating buffered solutions
CAS Number: 7778-77-0
Purity : ≥99%
Molecular Weight: 136.09
Molecular Formula: KH2PO4

Potassium Phosphate, Monobasic is a reagent with a very high buffering capacity and is widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (KH2PO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications, but with the following limitations: precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that KP buffers offered improved pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue. It is an excellent source of phosphorus and potassium, has been used as a fungicide, and in its crystalline state it is noted for its non-linear optical properties.

Formula

Formula
Appearance Powder
Physical State Solid
Solubility : Soluble in water (100 mg/ml). Insoluble in ethanol.
Storage : Store at room temperature
Melting Point : 252.6° C (lit.)
Density : 2.34 g/cm3 at 25° C
pK Values : pKa: pK1: 2.15 (25° C), pK2: 6.82 (25° C), pK3: 12.38 (25° C)

Ammonium Phosphate Dibasic

Product Description
Synonym: Ammonium hydrogenphosphate
Application: A water soluble preparation of ammonium phosphate
CAS Number: 7783-28-0
Purity : ≥98%
Molecular Weight: 132.06
Molecular Formula: HPO4•(NH4)2

Ammonium phosphate dibasic is part of a series of water soluble ammonium phosphate salts. It is commonly used in fertilizer as plant food as well as a yeast nutrient. Ammonium phosphate dibasic has been used to prepare multi-shell nanoparticles to increase transfection efficiency.

Formula

Formula
Appearance Crystalline
Physical State Solid
Solubility : soluble in water
Storage : Store at room temperature

Ammonium Phosphate Monobasic

Product Description
Synonym: Ammonium dihydrogenphosphate
Application: A water soluble preparation of ammonium phosphate
CAS Number: 7722-76-1
Purity : 98%
Molecular Weight: 115.03
Molecular Formula: NH4H2PO4

Ammonium phosphate monobasic is employed as a flameproofing agent, a fertilizer, food additive and in fermentations (yeast preparations). Prevents afterglow in matches. Also used in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2 .

Formula

Formula
Appearance Crystalline powder
Physical State Solid
Solubility : Soluble in water (227 mg/ml at 0° C), water (380 mg/ml at 20° C), ethanol (slightly), and alcohol (slightly). Insoluble in acetone.
Storage : Store at room temperature
Melting Point : 190° C (lit.)(dec.)
Density : 1.80 g/cm3 at 20° C