6628-77-9
5-Amino-2-methoxypyridine
CAS: 6628-77-9
Molecular Formula: C6H8N2O
6628-77-9 - Names and Identifiers
6628-77-9 - Physico-chemical Properties
| Molecular Formula | C6H8N2O |
| Molar Mass | 124.14 |
| Density | 1.575 |
| Melting Point | 29-31 °C (lit.) |
| Boling Point | 85-90 °C/1 mmHg (lit.) |
| Flash Point | >230°F |
| Water Solubility | Slightly soluble |
| Solubility | Chloroform, Methanol (Slightly) |
| Vapor Presure | 0.00951mmHg at 25°C |
| Appearance | Liquid |
| Color | Yellow-brown or red to very dark red |
| pKa | 4.33±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.575(lit.) |
| Physical and Chemical Properties | Melting point 29-31 °c. Boiling point 85-90 deg C (133Pa), refractive index of 1.5745. |
| Use | Used as a drug Intermediate |
6628-77-9 - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | US1836000 |
| HS Code | 29339900 |
| Hazard Class | IRRITANT |
6628-77-9 - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| Application | 5-amino-2-methoxypyridine can be used as intermediates in organic synthesis and pharmaceutical intermediates, mainly used in laboratory research and development process and chemical production process. |
| Use | pharmaceutical intermediates. For the production of naphthyridine phosphate. used as a pharmaceutical intermediate |
| production method | is obtained by reduction of 2-methoxy-5-nitropyridine. 50% methanol, iron powder and acetic acid were heated to reflux, and 2-methoxy-5-nitropyridine was added in portions and refluxed for 4H. The mixture was basified with 20% sodium hydroxide solution, filtered, and the filtrate was distilled under reduced pressure to obtain 5-amino-5-methoxypyridine by collecting a fraction of 140-142 ° C. (3.33-3.60kPa). The yield was 70%. |
Last Update：2024-04-09 15:16:52
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CAS: 6628-77-9
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