- Min.Order :1 Kilogram
- Purity: 99.0%~101.0%
- Payment Terms : L/C|D/A|D/P|T/T|Westem Union
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Quick Details
- Appearance:Yellow crystalline powder
- Application:Has the inhibition of n/med tuberculosis bacterium, high concentrations of antiseptic effect
- PackAge:25kg/drum
- ProductionCapacity:|/
- Storage:cool and dry
- Transportation:by sea ,air or express
Superiority:
Characteristics: Yellow crystals or crystalline powder Identification: A. The infra-red absorption spectrum is concordant with the refer…
Details:
Characteristics: Yellow crystals or crystalline powder
Identification: A. The infra-red absorption spectrum is concordant
with the reference spectrum of prothiionamide CRS.
B: A maximum only at 291nm,the absorbance is about 0.78.
C: Heat 0.1g with 5ml of 1M hydrochlorid acid.A gas is evolved which turns lead acetate paper black.
Solubility :Practically insoluble in water,soluble in 30 parts of
ethanol(96%) and in 16 parts of methanol;slightly soluble in chloroform and in ether.
Acidity :Not more than 0.2ml of 0.1M sodium hydroxide is
required to change the color of the indicator to red.
Melting point :140~143℃
Related substances: Any secondary spot in the chromatogram obtained
with solution(1) is not more intense than the spot in the
chromatogram obtained with solution(2).
Heavy metals:≤ 20ppm
Loss on drying: ≤ 0.5%
Sulfated ash: ≤ 0.1%
Assay :99.0%~101.0%%
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