Featured Products

Monodispersed Low MW PEGs

BioVectra DCL offers a wide range of oligoethylene glycols and derivatives of molecular weights between 400 and 2000 Da. Our mono and bifunctional monodispersed low MW PEGs have been prepared with a wide variety of functional groups. We can provide products from a selection of catalogue items, or from our custom synthesis program. Please request a quotation for bulk orders and custom manufacturing needs.

All products consist of one oligomer only, allowing us to maintain a high purity throughout the product range. Polydispersed polyethylene glycol is fractionated into single oligomer quality. Product specification is set to >95% oligomer integrity, but the actual purity is usually 97-99%. The proprietary technology of BioVectra is based on sample displacement chromatography at low pressure, which has proven to be dependable and inexpensive. The technology displays numerous advantages compared to high-pressure chromatography. Most importantly, it allows the isolation of individual oligomers from a polymer mixture at a competitive cost. The effective use of stationary phases and solvents further allows separations to be performed in kilogram scale. The technology utilizes the small hydrophobic contribution of each ethylene oxide unit that builds up the oligoethylene glycol for specific resolution of the oligomers. The result is an extremely narrow distribution of oligomers or "monodispersed" products.

Structure

Cat.#

Product

n

MW

Stock/Made to Order

6200 - 1g
6200 - 5g
6200 - 25g

Dodeca (ethylene glycol)

12

546,7

MTO

Stock

MTO

10110-0895

Octa (ethylene glycol)

8

370,4

MTO

10110-2895

PEG-28

28

1251,5

MTO

10111-1195

Undeca (ethylene glycol) methyl ether

11

516,6

MTO

10111-0795

Hepta (ethylene glycol) methyl ether

7

340,4

MTO


Monodispersed Low MW PEG Amines

Amine products are commonly protected as Boc-amine or as azides. The azido group is stable to acids and bases but is readily reduced to the amine by numerous reducing agents.

Structure

Cat.#

Product

n

MW

Stock/Made to Order

12112-1895

PEG diamine

18

897,1

MTO

10113-0795

Azido-PEG

7

395,5

MTO

10113-1595

Azido-PEG

15

747,9

MTO

12113-1095

Azido-PEG amine

10

570,7

MTO

12113-0595

Azido-PEG amine

5

350,4

MTO

6211-1 gm

6211-5 gm

Boc Amino PEG Amine

6

468,6

Stock

Stock

12114-1095

Boc Amino PEG Amine

10

644,8

MTO


Monodispersed Low MW PEG Acids and Amino Acids

PEG acids are provided as propionic acids or esters. Protected amino acids are also available, either as propionates or as diglycolic acids.

Structure

Cat.#

Product

n

MW

Stock/Made to Order

10139-1295

PEG tBu-propionate

12 

674,8

MTO

11137-1195

mPEG propionic acid

11

588,7

MTO

37137-1295

PEG dipropionate

12 

690,8

MTO

6216-1 gm

6216-5 gm

Boc-Amino PEG diglycolic acid 

6

584,7

Stock

Stock

14131-1095

Boc-Amino PEG Acid

10

760,9

MTO

15137-1195

Fmoc-amino PEG acid

11 

840,0

MTO


Monodispersed low MW PEG thiols and disulfides

The thiol group is used in conjunction reactions and in surface modification. The thiol group is oxidized in air upon storage and the products are therefore preferably offered as the dimeric disulfide. If the thiol is requested, please specify. We offer protected and activated thiols for a number of applications.

Structure

Cat.#

Product

n

MW

Stock/Made to Order

11156-0695

mPEG thiol 

6

356,5

MTO

6220-1 gm

6220-5 gm

mPEG disulfide 

6

710,9

Stock

Stock

37156-0795

PEG thiol acid

458,6

MTO

6222-5 gm

PEG Propionate disulfide

7

915,1

Stock

38157-0795

Succinimidyl propionyl PEG disulfide

1109,3

MTO


Monodispersed low MW PEG Biotins

The biotin groups serves an affinity label towards the proteins avidin and streptavidin. PEG attached to biotin gives an extended spacer arm that permits the biotin to reach into the binding pocket of the protein. The PEG moiety also increases solubility of Biotin-PEG conjugates considerably. BioVectra offers a selection of functionalized biotin-PEG derivatives.

Biotin-PEG

Structure

Cat.#

Product

n

MW

Stock/Made to Order

R=

12141-0895

Biotin PEG amine 

682,9

MTO

R= COOH

6226-100 mg

BiotinPEG propionic acid

11

844,0

Stock 

R

6227-100 mg

Biotin PEG disulfide

1540,0

Stock

Disulfide form

 

 

 


BioVectra

BioVectra, Prince Edward Island, Canada 2004