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Actigel ALD Ultraflow 4

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Equl SKU Product Name UOM Price(USD) Add to Cart:
EQUL-BSM06 Actigel ALD Ultraflow 4 EA call for price none
Introduction:
Product Code2731
Bead Size40-160µm
Agarose concentration4%
Spacer arm5 atoms, hydrophilic
Flow rate2000cm/hr*
Binding capacityUp to 60mg/ml
Cleaning0.15 IM NaOH**
Storage Conditions20% ethanol, 2-8C
Functional to attachPrimary amines
Reactive group concentration>50µmoles/ml
Coupling effeciencies>90%
Temperature stability range2-100 C (wet)
AutoclaveYes
Functional ligandMonoaldehyde
Blocking agentsEthanolamine
Coupling in organic solventsYes
Coupling in a packed columnYes
Leaching<0.1ppm
pH stability range2-13
Coupling conditionspH 3-10, 0-40C, 2-12 hours
Chemical stability1M NaOh, 8M urea, 6M guanidine, ethanol, and common buffers..
Drug master fileU.S. Food & Drug Administration

*Measured on a 1.5 X 5cm column **NaHSO3 must be used in cleaning with NaOH to protect the aldehyde groups. Please see the product instructions for more details.


Actigel ALD Ultraflow 4 is an activated resin for immobilizing primary amines from small ligands to large proteins. Convenience and economy are the key advantages of Actigel ALD Ultraflow 4: coupling is simple, rapid and highly efficient.

During coupling, an instantaneous, reversible Schiff-base reaction takes place between the monoaldehyde groups and the primary amines of the ligand. The Schiff-base is then reduced to a stable secondary amine by the addition of a reducing agent so mild that it cannot reduce intramolecular disulfide bridges. ALD couples both acidic and basic proteins with the same high efficiency, typically >90% due to the high density of stable aldehyde groups.

Coupling is highly reproducible. Hydrolysis or inactivation of the activated groups is the main cause of irreproducible coupling, frequently encountered with traditional coupling chemistries.

Using ALD chemistry, coupling efficiency is simply a function of loading. No hydrolysis or inactivation of active groups takes place during the coupling reaction. This provides a highly reproducible coupling of ligands, critical for both research and manufacturing.

Prepacked Columns and Kits:
Actigel ALD Ultraflow 4 Prepacked Column