| | Identification | Back Directory |  | [Name] 
 Diethyl Isonitrosomalonate
 |  | [CAS] 
 6829-41-0
 |  | [Synonyms] 
 Fingolimod Impurity 28
 DIETHYL OXIMINOMALONATE
 Diethyl Isonitrosomalonate
 Diethyl (hydroxyimino)malonate
 diethyl 2-hydroxyiminomalonate
 Propanedioic acid, 2-(hydroxyimino)-, 1,3-diethyl ester
 |  | [Molecular Formula] 
 C7H11NO5
 |  | [MDL Number] 
 MFCD00019949
 |  | [MOL File] 
 6829-41-0.mol
 |  | [Molecular Weight] 
 189.17
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 86.5-88 °C
 |  | [Boiling point ] 
 324.41°C (rough estimate)
 |  | [density ] 
 1.1821
 |  | [refractive index ] 
 1.4544 (estimate)
 |  | [storage temp. ] 
 Storage temp. 2-8°C
 |  | [pka] 
 7.04±0.10(Predicted)
 |  | [Appearance] 
 Colorless to light yellow Liquid
 |  | [InChI] 
 InChI=1S/C7H11NO5/c1-3-12-6(9)5(8-11)7(10)13-4-2/h11H,3-4H2,1-2H3
 |  | [InChIKey] 
 QOPCUMZEDYLUDO-UHFFFAOYSA-N
 |  | [SMILES] 
 C(OCC)(=O)/C(=N/O)/C(OCC)=O
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 | Hazard Information | Back Directory |  | [Uses] 
 Diethyl (Hydroxyimino)malonate is a reagent used in the preparation of pyrano[2,?3-?e]?isoindol-?2-?one ring system, a heteroanalog of angelicin.
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