alpha-methyldopa

alpha-methyldopa

alpha-methyldopa

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0 Metric Ton

FOB Price: USD 70.0000

  • Min.Order :0 Metric Ton
  • Purity: BP2013
  • Payment Terms : L/C,T/T,Other

Keywords

alpha-methyldopa 555-30-6 methyldopa

Quick Details

  • Appearance: White or yellowish white
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Superiority:

Appearance White or yellowish white ,crystalline powder or colourless or almost colourless crystals
Solubility Slightly soluble in water ,very slightly soluble in ethanol(96%).It is freely soluble indilute mineral acids.
Identification A.IR IR spectrum is concordant with Methyldopa CRS.
 B.Enantiomeric purity D-Methyldopa not more than 0.5%
Appearance of solution Not more intensely coloured than reference solution BY6 or B6.
Acidity (0.1M NaOH) Not more than 0.5ml/g.
Absorbance(on anhydrous basis) 122~137
Related substances Impurity A Not more than 0.15%
 Impurity B Not more than 0.15%
 Impurity C Not more than 0.15%
 Unspecified impurities Not more than 0.05%
 Total impurities Not more than 0.5%

Details:

Appearance White or yellowish white ,crystalline powder or colourless or almost colourless crystals
Solubility Slightly soluble in water ,very slightly soluble in ethanol(96%).It is freely soluble indilute mineral acids.
Identification A.IR IR spectrum is concordant with Methyldopa CRS.
 B.Enantiomeric purity D-Methyldopa not more than 0.5%
Appearance of solution Not more intensely coloured than reference solution BY6 or B6.
Acidity (0.1M NaOH) Not more than 0.5ml/g.
Absorbance(on anhydrous basis) 122~137
Related substances Impurity A Not more than 0.15%
 Impurity B Not more than 0.15%
 Impurity C Not more than 0.15%
 Unspecified impurities Not more than 0.05%
 Total impurities Not more than 0.5%

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