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Acridine Oligo Modification

Acridine Oligo Modificaiton

Aldehyde

Aldehydes are attractive electrophiles for bioconjugation, since they react with nucleophiles such as amines to form a Schiff's base, with hydrazino groups to form hydrazones, and with semicarbazides to form semi-carbazones. The Schiff’s base is unstable and must be reduced with sodium borohydride to form a stable linkage but hydrazones and semicarbazides are very stable linkages.

Aldehyde C2 Desalted Qty. 5'-Mod Internal 3' -mod
250 nmol 15 OD $85 NA NA
1.0 µmol  35 OD $85 NA NA

Purification

Desalt or cartridge (RP1) purification is acceptable for most common phosphoramidite modifiers. However, additional purification is strongly recommended for modifiers that require NHS-ester chemistry to conjugate a dye through an amine linker such as Molecular Probes dyes.

Minimum Guarantee Purified Yield

Due to the chemistry of many modifications, yield will be approximately 40 - 60 % less than a standard oligo. Please see our yield chart for details.

Quality Controls

Every oligo synthesized is strictly controlled for quality by using either MALDI-TOF mass spectrometry or polyacrylamide gel electrophoresis (PAGE) analysis. Final yields are determined using UV absorbance at OD260 In addition, we perform QC methods tailored to specific modifications, such as OD ratio measurement where appropriate.

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