Manufacturer Provide High Purity Antibacterial Agent Trimethoprim CAS738-70-5
Introduction
1.Product Name:Trimethoprim
2.CAS NO: 738-70-5
3.Purity: 99%min
4.Appearance: white powder
5.Molecular formula: C14H18N4O3
6.Molecular weight :290.32
7. Melting Point :199-203 °C
8.Solubility:Soluble in DMSO
9.Storage Temperature :Keep in a cool, dry, dark location in a tightly ,2- 8°C(protect from light)
10.Packing: Bag, drum
Usage:
1. It can be used as a synergistic antimicrobial drugs; it can also be used for treating bacterial infections and coccidiosis in poultry.
2. It is a novel orally administrated broad-spectrum antibiotics. It has a similar antibacterial spectrum with sulfa drugs but with a stronger potency.
3.Application: used as antibacterial synergistic drugs; treat respiratory tract infections, urinary tract infections and intestinal infections when being used alone.
| Test Item | Analysis Specification | Result |
| Description | White or yellowish white power | white power |
Identification
A Infrared Absorption
B: Ultraviolet Absorption | IR conforms to standard<197k>
Absorptivities, calculated on the dried
basis, differ by NMT 3.0%<197u> | Complies |
| Melting point | 190~203°C | 201.5~201.8°C |
| Loss on drying | ≤0.5% | 0.001 |
| Residue on ignition | ≤0.1% | 0.0002 |
| Chromatographic purity(HPLC) | Individual impurity≤0.1% | 0.0008 |
| Total impurities≤0.2% | 0.0008 |
| Residual solvents | Methanol ≤3000 ppm | Complies |
| DMSO ≤3000 ppm | Complies |
| Assay(Dry Basis) | 98.5%~101.0% | 1.003 |
| Conclusion | The commodity meets the standard of USP 30. |
China
