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8-Arm PEG-Azide(2)/Amine(6), MW 20k

8-Arm PEG-Azide(2)/Amine(6), MW 20k

Catalog No: CPW-8816
Product Name: 8-Arm PEG-Azide(2)/Amine(6), MW 20k
In Stock: Yes
SKUProduct Name
CPW-8816-5g
8-Arm PEG-Azide(2)/Amine(6), MW 20k - 1g
$1,850.00
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CPW-8816-1g
8-Arm PEG-Azide(2)/Amine(6), MW 20k - 1g
$950.00
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+
CPW-8816-500mg
8-Arm PEG-Azide(2)/Amine(6), MW 20k - 500mg
$650.00
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+
Interested in Bulk Orders? Please contact us here

Description

Bifunctional 8-Arm PEG reagents have two functional groups Azide and Amine at specific ratio of 1:7, 2:6, 4:4 , 6:2, 7:1. The amine and azide functionality groups are quantitated using spectroscopic techniques and colorimetric assays.

Properties

Molecular weight: 8-Arm PEG MW refers to the MW of the entire PEG molecule. The MW of each arm is 1/8 of the MW indicated in the product name. MW of PEG was measured by MALDI-MS or GPC. PDI (polydispersity index) of our 8-Arm PEG is 1.02-1.06 with very narrow MW distribution. The number of repeating ethylene oxide units (CH2CH2O) or the degree of polymerization is calculated dividing the PEG MW by 44 (44 is the molecular mass of one repeating unit).

Solubility: Soluble in water and aqueous buffer, chloroform, methylene chloride, DMF, DMSO, and less soluble in alcohol, toluene. Not soluble in ether.

Density: PEG density is approximately 1.125 g/mL

Physical form: PEG products generally appear as white or off-white powder, and for certain special 8-arm PEGs, it may appear as wax-like, semi-solid material due to low MW and the type of functional groups.

Storage condition: PEG product shall be stored in the original form as received in a freezer at -20C or lower for long term storage. Stock solution of PEG reagents that do not contain oxygen or moisture sensitive functional groups may be temporarily stored in a refrigerator or ambient temperature for multiple days. Stock solution should avoid repeated freeze-and-thaw cycles. See Documents section for detailed storage and handling conditions.

Documents

 Technical Information_8-Arm PEG Products
 SDS of 8-Arm PEG-Azide-Amine

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