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S.No Test Specification
1. Description Colourless to pale yellow colour liquid.
2. Identification by IR The 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.Purity Not less than 98.0%
2.Diethyl oxalate impurity Not more than 1.0%
3.Any other individual impurity Not more than 0.50%
5. Assay
(% w/w, on anhydrous basis by chemical)
Not less than 96.0