| Place of Origin: | CHINA |
|---|---|
| Brand Name: | Allbiosyn |
| CAS No.: | 163759-94-2 | Molecular Formula: | C50H60N5O10P |
|---|---|---|---|
| Molecular Weight: | 922.04 | Appearance: | White Powder |
| Purity: | HPLC ≥99.0% | Storage: | -20℃ |
| Highlight: | DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-CE -Phosphoramidite,DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-CE -Phosphoramidite Powder |
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A phosphoramidite (RO)2PNR2 is a monoamide of a phosphite diester. The key feature of phosphoramidites is their markedly high reactivity towards nucleophiles catalyzed by weak acids e.c., triethylammonium chloride or 1H-tetrazole. In these reactions, the incoming nucleophile replaces the NR2 moiety.
CAS No.: 251647-55-9.
Molecular Formula: C47H60N7O10P.
Molecular Weight: 914.01.
Appearance: (visual inspection) white to off-white powder.
Identity: (molecular weight by MS) conforms to structure molecular weight; (1H NMR) conforms to structure.
Purity: (31P NMR) ≥99.0%; (RP-HPLC) ≥99.0%.
Impurity profile: (HPLC) any single critical impurity ≤ 0.15%; total critical impurities ≤ 0.3%; total impurities ≤ 1.0%.
Assay: (HPLC) 98.0%~102.0%.
Sulfate ash: (muffle furnace) ≤0.1%.
Residual solven: (GC) ≤1.5%.
Moisture content: (Karl Fischer) ≤0.2%
Clarity of solution: (visual inspection) the solution shall be clear and free of insoluble substances.
Storage: -20±5℃.
