mPEG-GAA, MW 30k

mPEG-GAA, MW 30k

Catalog No:PSB-2076
Product Name:mPEG-GAA, MW 30k
In Stock: Yes
SKUProduct Name
PSB-2076-5g
mPEG-GAA, MW 30k - 5g
$950.00
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+
PSB-2076-1g
mPEG-GAA, MW 30k - 1g
$300.00
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+
PSB-2076-10g
mPEG-GAA, MW 30k - 10g
$1,450.00
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+
Interested in Bulk Orders? Please contact us here

Description

mPEG-GAA is one type of linear monofunctional PEG acid reagents. There is a C4 aliphatic amide linkage between PEG and the COOH group. More details can be found at the FAQ webpage. PEG glutaramide acid can be used to react with amine groups with peptide coupling reagents.

Difference of all PEG acid products we offer:

PEG acidsStructural characteristics
Type A: AAMethylene (CH2) linkage between PEG and acid (COOH)
Type B: GAC4 aliphatic ester linkage between PEG and acid (COOH)
Type C: SAC3 aliphatic ester linkage between PEG and acid (COOH)
Type D: GAAC4 aliphatic amide linkage between PEG and acid (COOH)
Type E: SAAC3 aliphatic amide linkage between PEG and acid (COOH)
AA: Acetic Acid, also called CM - Carboxyl Methyl; GA: Glutaric Acid; SA: Succinic Acid; GAA: GlutarAmide Acid; SAS: SuccinAmide Acid

Properties

Molecular weight: MW of PEG was measured by MALDI-MS or GPC. PDI (polydispersity index) of our linear PEG is 1.02-1.05 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 very low MW linear PEG such as MW 1k or less, it may appear as wax-like, semi-solid material due to the 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.

References

Click here to view an expanded list of hundreds of publications citing Creative PEGWorks products

Documents

 Technical Information_Linear PEG Products
 SDS of mPEG-GAA

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