4-Arm-PEG-OPA

4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (4-Arm-PEG-OPA) is a pentaerythritol-cored four-arm precision PEG derivative. All four PEG arms are linked through carbamate bonds to benzyl termini bearing adjacent dialdehyde groups. Each molecule contains four adjacent-dialdehyde units. The adjacent aldehydes can condense with suitable primary amines, hydrazides, or aminooxy components, supporting studies of multisite crosslinking, gel formation, and network structure. Selecting a defined degree of polymerization for each arm enables comparisons of crosslink spacing and segment length in relation to material properties. In this series, n denotes the number of ethylene glycol repeat units in each PEG arm.

Applications:

Four-arm PEG multivalent conjugation;
Branched PEG construction;
Crosslinking and site-density studies;
Aldehyde crosslinking;
Multivalent carbonyl conjugation.

Customization available.

26 Catalog Nos. · Choose a pack size to add it to your inquiry list

Catalog No. / Product Name	Degree of Polymerization (n)	Exact Mass	Pack Size & Inquiry
PPT-361-004 4-Arm-PEG-OPA (n=4, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=4)	4	1596.66	Pack SizeQuantity
PPT-361-005 4-Arm-PEG5-OPA	5	1772.77	Pack SizeQuantity
PPT-361-006 4-Arm-PEG6-OPA	6	1949.88	Pack SizeQuantity
PPT-361-007 4-Arm-PEG7-OPA	7	2125.98	Pack SizeQuantity
PPT-361-008 4-Arm-PEG-OPA (n=8, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=8)	8	2302.09	Pack SizeQuantity
PPT-361-009 4-Arm-PEG9-OPA	9	2478.19	Pack SizeQuantity
PPT-361-010 4-Arm-PEG10-OPA	10	2654.30	Pack SizeQuantity
PPT-361-011 4-Arm-PEG11-OPA	11	2830.40	Pack SizeQuantity
PPT-361-012 4-Arm-PEG-OPA (n=12, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=12)	12	3006.51	Pack SizeQuantity
PPT-361-013 4-Arm-PEG13-OPA	13	3182.61	Pack SizeQuantity
PPT-361-014 4-Arm-PEG14-OPA	14	3358.72	Pack SizeQuantity
PPT-361-015 4-Arm-PEG15-OPA	15	3534.82	Pack SizeQuantity
PPT-361-016 4-Arm-PEG16-OPA	16	3710.93	Pack SizeQuantity
PPT-361-017 4-Arm-PEG17-OPA	17	3887.03	Pack SizeQuantity
PPT-361-018 4-Arm-PEG18-OPA	18	4064.14	Pack SizeQuantity
PPT-361-019 4-Arm-PEG19-OPA	19	4240.24	Pack SizeQuantity
PPT-361-020 4-Arm-PEG20-OPA	20	4416.35	Pack SizeQuantity
PPT-361-021 4-Arm-PEG21-OPA	21	4592.45	Pack SizeQuantity
PPT-361-022 4-Arm-PEG22-OPA	22	4768.56	Pack SizeQuantity
PPT-361-023 4-Arm-PEG23-OPA	23	4944.66	Pack SizeQuantity
PPT-361-024 4-Arm-PEG-OPA (n=24, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=24)	24	5120.77	Pack SizeQuantity
PPT-361-028 4-Arm-PEG28-OPA	28	5825.19	Pack SizeQuantity
PPT-361-036 4-Arm-PEG36-OPA	36	7235.03	Pack SizeQuantity
PPT-361-045 4-Arm-PEG-OPA (n=45, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=45)	45	8820.98	Pack SizeQuantity
PPT-361-048 4-Arm-PEG48-OPA	48	9349.29	Pack SizeQuantity
PPT-361-096 4-Arm-PEG-OPA (n=96, per arm); 4-Arm o-phthalaldehyde-functionalized discrete poly(ethylene glycol) (PEG arm n=96)	96	17806.34	Pack SizeQuantity