Thermo Scientific™

dI Phosphoramidite, standard grade, 20-400 finish bottle

Catalog number:  27-1744-10

 Related applications:

Nucleic Acid Labeling & Oligo Synthesis

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dI CEP is a phosphoramidite containing 5' DMT and the nucleoside deoxyinosine (dI) for use in oligonucleotide synthesis. The problem of degeneracy of the genetic code can be assuaged by utilizing universal bases, such as deoxyinosine (dI), in an oligonucleotide. Its unique structure allows for it to pair with all four bases in various ‘wobble’ structures, with an overall preferential order of base-pairing: dI-dC > dI-dA > dI-dG = dI-dT. This product is supplied in a 30 mL amber bottle with a 20-400 Finish neck style, which is compatible with most Expedite Systems of oligonucleotide synthesizers.

• Full chemical name—5'-O-(4,4'-Dimethoxytrityl)-2'-deoxyinosine-3'-O-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite
• Molecular formula—C40H47N6O7P
• Formula weight—754.8 g/mol
• CAS number—141684-35-7
• HPLC Purity—≥98.0%; M-11 Impurity ≤0.01%
• 31P NMR Purity—≥98%

For Research Use Only. Not for use in diagnostic procedures.


Nucleic Acid Type: DNA
Nucleoside Type: Deoxyinosine (dI)
Chemical Name: dI CEP
For Use With (Equipment): Expedite Synthesizers
Form: Powder
Product Size: 1 g
Purity or Quality Grade: Standard
Reagent Type: Phosphoramidite
Shipping Condition: Room Temperature

Contents & storage

Store in freezer (at or below -20°C).


Manuals & protocols