901645
Methoxy poly(ethylene glycol) KAT
PEG average Mn 20,000
Synonym(s):
KAT PEG 20k, mPEG KAT
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
About This Item
Linear Formula:
H3CO[CH2CH2O]nCH2CH2O(C6H3BF3KNO)
NACRES:
NA.23
UNSPSC Code:
51171641
form
powder or solid
mol wt
PEG average Mn 20,000, PEG ~20,000 Da
color
off-white to pale yellow
storage temp.
2-8°C
General description
Methoxy poly(ethylene glycol) KAT 20K (mPEG KAT 20K) is a monofunctional, methyl ether PEG featuring a terminal potassium acyltrifluoroborate for facile, rapid functionalization. Potassium acyltrifluoroborates (KATs) are stable functional groups that undergo rapid amide-forming ligations with hydroxylamines in aqueous media, in the presence of unprotected functional groups. In addition to its compatibility, these reactions proceed relatively quickly, lending to their use with sensitive biological reagents. This conjugation reaction offers a new approach to the synthesis of complex molecules without the complication of side reactions, such protein-polymer conjugates. KATs also undergo amide or imide-forming ligations in acidic conditions when reacted with primary amines or amides, respectively, as an alternative to classical acylation chemistry.
Still not finding the right product?
Explore all of our products under Methoxy poly(ethylene glycol) KAT
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
新产品
This item has
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Potassium Acyltrifluoroborate (KAT) Ligations are Orthogonal to Thiol-Michael and SPAAC Reactions: Covalent Dual Immobilization of Proteins onto Synthetic PEG Hydrogels.
Mazunin D, et al.
Helvetica Chimica Acta, 100(2) (2017)
Alberto Osuna Gálvez et al.
Journal of the American Chemical Society, 139(5), 1826-1829 (2017-01-25)
Current methods for constructing amide bonds join amines and carboxylic acids by dehydrative couplings-processes that usually require organic solvents, expensive and often dangerous coupling reagents, and masking other functional groups. Here we describe an amide formation using primary amines and
Fumito Saito et al.
ACS chemical biology, 10(4), 1026-1033 (2015-01-13)
Chemoselective ligation reactions have contributed immensely to the development of organic synthesis and chemical biology. However, the ligation of stoichiometric amounts of large molecules for applications such as protein-protein conjugates is still challenging. Conjugation reactions need to be fast enough
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 901645-500MG | 04061834898962 |