Entecavir USP Impurity B
entecavir
CAS: 142217-69-4;1367369-76-3
Molecular Formula: C12H15N5O3
Entecavir USP Impurity B - Names and Identifiers
| Name | entecavir |
| Synonyms | Etv entecavir Enticavir Aids098045 Aids-098045 EntikaweiPian entecavir Baraclude Entecavir USP Impurity B (1S,3R,4S)-9-[4-Hydroxy-3-(hydroxyMethyl)-2-Methylenecyclopentyl]guanine 2-amino-9-[(3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3,9-dihydro-6H-purin-6-one 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one 2-amino-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylidenecyclopentyl]-3,9-dihydro-6H-purin-6-one |
| CAS | 142217-69-4 1367369-76-3 |
| EINECS | 604-279-5 |
| InChI | InChI=1/C12H15N5O3/c1-5-6(3-18)8(19)2-7(5)17-4-14-9-10(17)15-12(13)16-11(9)20/h4,6-8,18-19H,1-3H2,(H3,13,15,16,20)/t6-,7-,8+/m0/s1 |
Entecavir USP Impurity B - Physico-chemical Properties
| Molecular Formula | C12H15N5O3 |
| Molar Mass | 277.28 |
| Density | 1.81±0.1 g/cm3(Predicted) |
| Melting Point | 249-252°C |
| Boling Point | 661.4±65.0 °C(Predicted) |
| Solubility | DMSO (Slightly), Methanol (Sparingly) |
| Appearance | powder |
| Color | white to beige |
| pKa | 14.22±0.60(Predicted) |
| Storage Condition | -20°C |
| Stability | Hygroscopic |
| Refractive Index | 1.837 |
Entecavir USP Impurity B - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 29339900 |
Entecavir USP Impurity B - Preparation solution concentration reference
| 1mg | 5mg | 10mg | |
|---|---|---|---|
| 1 mM | 3.606 ml | 18.032 ml | 36.064 ml |
| 5 mM | 0.721 ml | 3.606 ml | 7.213 ml |
| 10 mM | 0.361 ml | 1.803 ml | 3.606 ml |
| 5 mM | 0.072 ml | 0.361 ml | 0.721 ml |
Last Update：2024-01-02 23:10:35
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