- Min.Order :1 Kilogram
- Purity: 99%min
- Payment Terms : L/C,D/A,D/P,T/T
Keywords
Pyrimethamine 2,4-diamino-5-(p-chlorophenyl)-6-ethylpyrimidine 5-(4-chlorophenyl)-6-ethylpyrimidine-2,4-diyldiamine
Quick Details
- Appearance:WHITE OR OFF WHITE POWDER
- Application:Antiprotozoal (Toxoplasma) ;antimalarial
- PackAge:25kgs packaging Fiber drum outside and plastic bag inside
- ProductionCapacity:20|Metric Ton|Year
- Storage:Preserve in tight and light-resistant containers Store at 25°C. Excursion permitted between 15°C to 30°C
- Transportation:by sea, air
Superiority:
| Pyrimethamine | CAS 58-14-0 | Brand: Sinotech |
| MW:248.71 | MSDS: Avaiable | |
| MF :C12H13ClN4 | Sample: Avaiable | |
| Category: API | Min order: 1kg | |
| Quality standard: Enterperise standard | Place of Origin:China | |
| Usage | Dihydrofolate reductase inhibitor; generally used in combination with other antimicrobial agents. Antiprotozoal (Toxoplasma); antimalarial | |
| Applications | Pharmaceutical raw materials | |
Details:
|
SPECIFICATION |
STANDARD |
|
APPEARANCE |
WHITE OR OFF WHITE POWDER |
|
IDENTIFICATION |
POSITIVE |
|
CLARITY AND COLOUR OF SOLUTION |
2.5% W/V MIXED SOLUTION IS CLEAR;COLOUR ≤BY6 |
|
ACIDITY AND ALKALINITY |
REQUIRES 0.01M SODIUM HYDROXIDE VS NOT MORE THAN 0.2ml AND 0.01M HYDROCHLORIC ACID VS NOT MORE THAN 0.4ml. |
|
RELATED SUBSTANCE |
ANY SECOND SPOT IN SOLUTION 1.0% w/v IS NOT MORE THAN 0.25% |
|
SULPHATE
|
≤80ppm |
|
MELTING POINT
|
238~242℃ |
|
LOSS ON DRYING
|
≤0.50% |
|
ASH
|
≤0.10% |
|
ASSAY (ON DRY BASIS)
|
99.0~101.0% |
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