Dimethyl acetamide Ph.Eur PARENTEX 2LT Go Back


: 127-19-5

Molecular Formula

: CH3CON(CH3)2

Molecular Weight

: 87.12
Appearance: Clear, colourless, slightly hygroscopic liquid.
Solubility: Miscible with water, with ethanol (96 per cent).
Boiling point: ~165°C
Identification A ( By Relative density, 20°C): 0.941 - 0.944
Identification B (By Refractive index, 20±0.5°C): 1.435 - 1.439
Identification C (By IR): IR spectra of the sample should be concomitant with IR spectra of the standard.
Identification D (By Chemical test): A reddish-brown color develops, reaching a maximum intensity after about 5 minutes.
Appearance of solution: The solution is clear and not more intensely coloured than reference solution Y7
Acidity: NMT 5.0ml of 0.02M potassium hydroxide is required to restore the initial bluish-green color.
Alkalinity: NMT 0.5ml of 0.02M hydrochloric acid is required to restore the initial yellow color.
Related substances (N,N-dimethylformamide): NMT 0.07%
Related substances (Any impurity): NMT 0.1%
Related substances (Total impurity): NMT 0.3%
Heavy metals: NMT 10 ppm
Non-volatile matter: NMT 20 ppm
Water (By KF): NMT 0.1%
Bacterial endotoxins: NMT 0.2 EU/mg
Total aerobic bacterial count: NMT 100 CFU/ml
Total combined yeast and molds count: NMT 10 CFU/ml
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