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Phenyl-dextran - 40 kDa, high purity , CAS No.P292442

COA

Grade & Purity:

40 kDa

In stock

Item Number

P292442

Grouped product items
SKU	Size	Availability	Price
P292442-5g	5g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$515.90
P292442-10g	10g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$869.90
P292442-50g	50g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$3,434.90
P292442-100g	100g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$5,803.90

Discover Phenyl-dextran by Aladdin Scientific in 40 kDa for only $515.90. Available - in Ligands at Aladdin Scientific. Tags: .

Basic Description

Synonyms	Phenyl-dextran 40;1-phenoxy-2-hydroxy-propyl-dextran
Specifications & Purity	40 kDa
Storage Temp	Room temperature,Argon charged,Desiccated
Shipped In	Normal
Product Description	We have a long experience in synthesizing phenyl-dextran with a wide range of different molecular weight, from 5 kDa to 150 kDa. Phenyl-dextran is also known as Phenoxy dextran, DexP, phenoxy-derivatized dextran or 1-Phenoxy-2-hydroxypropyl dextran. Phenyl-dextrans may be used in the preparation of hydrophobic gels and hydrophobic coatings. After purification, the products are controlled for solubility, mean molecular weight, degree of substitution, and loss on drying. Structure Phenyl-dextrans are synthesised from selected controlled dextran fractions, derived from Leuconostoc mesenteroides B512F, by reacting with an appropriate epoxide. The phenyl content ranges from 0.34 to 0.4. The phenyl content expressed as w/w is around 22%. Application Several applications of phenyl-dextran have appeared in patents. The essential property of phenyl-dextran is its potential for coating plastic and related surfaces to impart a more hydrophilic character. This property has proved of value in many diagnostic devices. Product description： Phenyl-dextrans are synthesised from selected controlled dextran fractions, derived from Leuconostoc mesenteroides B512F, by reacting with an appropriate epoxide. The phenyl content ranges from 0.34 to 0.4. The phenyl content expressed as w/w is around 22%. Phenyl-dextrans are synthesized from selected controlled dextran fractions, derived from Leuconostoc mesenteroides B512F, by reacting with an appropriate epoxide. After purification, the products are controlled for solubility, mean molecular weight Mw, degree of substitution, and loss on drying. A specification may be obtained on request. The products are designated by the approximate molecular weights of the dextran fractions used. Thus, for example, the product PhDex40 has a molecular weight of approx. 40000. The dextran fractions used have weight average molecular weights (Mw) from 4000 to 2000000 and are carefully controlled by GPC (gel permeation chromatography) optical rotation and loss on drying. The actual molecular weight is determined by GPC. This value is supplied with the Certificate of Analysis. The dextran used is from Leuconostoc mesenteroides B-512F which is essentially a linear α- (1-6)-linked glucose chain with however a low percentage (2-5%) of α-(1-3) branches distributed along the chain. Phenyl-dextrans are white, odourless powders which are readily soluble in water or electrolyte solutions. The product has a pronounced hydrophobic character by virtue of the phenyl groups attached. Since phenyl-dextrans may coat hydrophobic surfaces, it was decided to run the GPC determination of Mw in water on a dedicated Superose column, in order to minimize the risks for interaction with component in the GPC system. The values obtained are nevertheless lower than the starting dextran fraction – and this is attributed to some interaction in the gel or plastic components. Phenyl-dextrans are insoluble in most organic solvents, for example, ethanol, methanol, acetone, chloroform, ethyl acetate etc. The purity is controlled by determination of weight average molecular weight Mw, specific optical rotation, phenyl content and Loss on drying. Tests are performed in production for free phenyl contaminants. The phenyl content as determined by the absorbance at 269nm ranges from 0.34 to 0.4 (value as degree of substitution i.e. number of substituents per glucose molecule). The phenyl content expressed as w/w is around 22%. The phenyl substituent is bound to the dextran by ether linkages which confer excellent stability to the substituents in both acid and alkaline conditions. Providing the product is stored in air-tight containers in the dark, it will be stable for at least 5 years at ambient temperatures. Dextran itself had been studied in many prospective stability tests and has a shelf life of at least 5 years. Storage and stability： Phenyl-dextran is stable for more than 6 years when stored dry in well-sealed containers at ambient temperature. Solubility： Phenyl-dextran dissolves readily in water. The product is water soluble at low concentrations but requires prolonged stirring. At higher concentrations the phenyl dextran will aggregate giving the solution an opaque appearance. Application： A number of applications of phenyl-dextran have appeared in patents. The essential property of phenyl-dextran is its potential for coating plastic and related surfaces to impart a more hydrophilic character. This property has proved of value in many diagnostic devices.

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

5 results found

Lot Number	Certificate Type	Date	Item
B2423051	Certificate of Analysis	Dec 22, 2021	P292442
B2209683	Certificate of Analysis	Dec 22, 2021	P292442
B2209681	Certificate of Analysis	Dec 22, 2021	P292442
B2209633	Certificate of Analysis	Dec 22, 2021	P292442
B2209631	Certificate of Analysis	Dec 22, 2021	P292442

Chemical and Physical Properties

Solubility	dissolves readily in water
Sensitivity	Moisture sensitive.

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