China Manufacturer Sell Entecavir Monohydrate CAS 209216-23-9 Entecavir Hydrate, Find details about China Entecavir Powder, API Entecavir Powder from China Manufacturer Sell Entecavir Monohydrate CAS 209216-23-9 Entecavir Hydrate
Cas: 209216-23-9
Other names: entecavir hydrate, entecavir
MF: C12H17N5O4
Molecular Weight: 295.29448
Water: 5.8%-6.5%
Residue on ignition: ≤0.1%
Heavy metals: ≤20ppm
Assay: 98.0%--102..0%
Description: Entecavir powder cas 209216-23-9 is an antiviral drug with activity against hepatitis B viral polymerase. As Entecavir powder cas 209216-23-9 is an analogue of the nucleoside guanosine, it competes with the enzyme's usual substrate. This reduces the synthesis of viral DNA. Entecavir is therefore indicated when there is evidence of viral replication.
Other chemical names: Entecavir hydrate/entecavir, Entecavir Monohydrate IsoMers, 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one monohydrate
Items | Specifications | Results |
Appearance | White to off-white powder | White powder |
Identification | 1)The IR absorption spectrum of the sample must be concordant with entecavir 2) RT of the sample should match that of standardin assay preparation | Conform |
2) RT of the sample should match that of standard in assay preparation | Conform | |
Water | 5.8%-6.5% | 6.1% |
Optical rotation | +24.0°-+28.0°(DMF: Me OH=1:1 c=1%) | +27.0° |
Residue on ignition | ≤0.1% | 0.07% |
Heavy metals | ≤20ppm | <20ppm |
Related substances | Total impurities ≤0.3% | 0.06% |
Any individual impurity≤0.1% | 0.02% | |
Residual solvents | dichlormethane≤600ppm methanal≤3000ppm ethyl acetaete≤5000ppm tolue≤890ppm | not detected 200ppm not detected not detected |
Assay | 98.0%--102..0% | 99.9% |
Particle size | 95% of the particles should be within 125um | Conform |
1. Goverment support guarantees good company credibility and finance safe.
2. Jianfeng Chemical is confident at the product quality, and would like t o supply free sample.
3. Factory locates in national new material industrial park where guarantees safe and continuous production.
4. More than 10 years chemical production and exporting experience, and good relationship with customs and ship agents, which guarantee fast and safe export.
5. Professional R&D technology team and equipment which keep products quality better and better.
6. Timely after-service resolves your worry for international trade.
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