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1.DescriptionColourless to pale yellow colour liquid.
2.Identification by IRThe Retention time of the major peak in the chromatogram of the sample solution corresponds to that in the chromatogram of the standard solution as obtained in the chromatographic purity.
3.Water content (%w/v by KF)Not more than 0.50%
4.Chromatographic purity
(% area normalization, by GC)
1.PurityNot less than 98.0%
2.Diethyl oxalate impurityNot more than 1.0%
3.Any other individual impurityNot more than 0.50%
(% w/w, on anhydrous basis by chemical)
Not less than 96.0