- Min.Order :1 Gram
- Purity: 99%min
- Payment Terms : L/C,T/T,Other
Keywords
trimethoprim
Quick Details
- Appearance:White crystal
- Application:
- PackAge:1kg net/foil-alum bag, 25KG/paper drum
- ProductionCapacity:1|Metric Ton|Day
- Storage:RM TEM
- Transportation:
Superiority:
BP2012,EP8.0
Appearance White or yellowish-white powder
Solubility Very slightly soluble in water,
slightly soluble in alcohol.
•Identification
A: Melting point
B: Specific absorbance
C: IR-spectrum
D: Chemical reaction
199-203℃
Max.287nm: 240-250
Complies with reference spectrum
Green fluorescence at 365nm
Appearance of solution Not more intensely colored than
Reference Solution BY7
Related substances
Method A by HPLC Impurity F≤0.1%
Any single impurity≤0.1%
Total impurities≤0.2%
Method B by HPLC Any single impurity≤0.1%
Total impurities≤0.2%
Heavy metals ≤20ppm
Residual methanol ≤3000ppm
Residual DMSO ≤5000ppm
Residual acetic acid ≤5000ppm
Impurity K(aniline) by GC ≤5ppm
Loss on drying ≤1.0%
Sulphated ash ≤0.1%
Assay 98.5-101.0%
Details:
BP2012,EP8.0
Appearance White or yellowish-white powder
Solubility Very slightly soluble in water,
slightly soluble in alcohol.
•Identification
A: Melting point
B: Specific absorbance
C: IR-spectrum
D: Chemical reaction
199-203℃
Max.287nm: 240-250
Complies with reference spectrum
Green fluorescence at 365nm
Appearance of solution Not more intensely colored than
Reference Solution BY7
Related substances
Method A by HPLC Impurity F≤0.1%
Any single impurity≤0.1%
Total impurities≤0.2%
Method B by HPLC Any single impurity≤0.1%
Total impurities≤0.2%
Heavy metals ≤20ppm
Residual methanol ≤3000ppm
Residual DMSO ≤5000ppm
Residual acetic acid ≤5000ppm
Impurity K(aniline) by GC ≤5ppm
Loss on drying ≤1.0%
Sulphated ash ≤0.1%
Assay 98.5-101.0%
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