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013519

013519-1g



4,5-Dicyanoimidazole


CAS Number: 1122-28-7
   
Molecular Formula: C5H2N4
   
Molecular Weight: 118.10
   
MDL Number: MFCD00005194


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013519-1g
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013519-5g
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013519-25g
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013519-100g
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Purity:98%
Mp:168-175°
 
Pictograms:
Signal Word:Danger
Hazard Statements:H301, H312, H315, H318, H332, H335
Precautionary Statements:P202, P233, P261, P280, P301 + P312, P301 + P330 + P331, P302 + P352, P304 + P340, P305 + P351 + P338, P310, P312, P332 + P313, P337 + P313
UN#:UN3439
Packing Group:III
Hazard Class:6.1
SDS: See MSDS
 
Limited Quantities:5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted Quantities:Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

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Peptide and oligonucleotides reagents. Commonly used in activation of nucleoside phosphoramidites during solid-phase oligonucleotide synthesis 1, synthesis of nucleoside phosphoramidites 2, synthesis of novel nucleosides 3,4, synthesis of 1-alkyl dicyanoimidazole derivatives and as a precursor to 2-bromo-4,5-dicyanoimidazole 5.  It is an alternative to the tetrazole-based activators and is less acidic but is a much more nucleophilic activator. 

1. Nucleic Acid Res. 1998, 26, 1046.
2. Tetrahedron Lett1996, 37, 973.
3. J. Am. Chem. Soc. 2009, 131, 8496
4. Nucleosides & Nucleotides 1994, 13, 2307
5. Encyclopedia of Reagents for Organic Synthesis, 2001

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