4-METHOXYPYRIDINE-N-OXIDE HYDRATE, 99 - Names and Identifiers
4-METHOXYPYRIDINE-N-OXIDE HYDRATE, 99 - Physico-chemical Properties
Molecular Formula | C6H7NO2.H2O
|
Molar Mass | 143.141 |
Melting Point | 78-81°C |
Water Solubility | Soluble in water. |
BRN | 115212 |
Storage Condition | Room Temprature |
Sensitive | Hygroscopic |
MDL | MFCD00149410 |
4-METHOXYPYRIDINE-N-OXIDE HYDRATE, 99 - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | 36/37/38 - 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
|
WGK Germany | 3 |
HS Code | 29333999 |
4-METHOXYPYRIDINE-N-OXIDE HYDRATE, 99 - Introduction
4-Methoxypyridine N-oxide hydrate, chemical formula C6H6NO3, has the following properties:
1. Appearance: White crystalline solid.
2. Melting Point: about 127-128 C.
3. Solubility: Soluble in water, ethanol and benzene and other organic solvents.
4. Stability: It is relatively stable under regular conditions, but it may decompose when encountering high temperature, strong acid or strong alkali.
Its Main uses include:
1. Chemical Synthesis: can be used as an oxidant in organic synthesis, commonly used in the oxidation of unsaturated compounds.
2. Pharmaceutical field: as a pharmaceutical intermediate, used for the synthesis of certain pharmaceutical ingredients.
3. Surfactant: can be used as a surfactant raw material.
The main preparation methods are:
The general preparation method is to dissolve 4-methoxypyridine in water, and then slowly add excess sodium hydroxide Dropwise to the solution to keep it weakly alkaline. Hydrogen peroxide is then added and the reaction proceeds for a period of time. Finally, excess sodium hydroxide and water are removed using acidic conditions and solvents to give 4-Methoxypyridine N-oxide hydrate.
Safety Information:
1. 4-Methoxypyridine N-oxide hydrate is irritating to the skin and eyes, and should be rinsed with plenty of water immediately after contact.
2. Avoid inhaling its particles or gas during operation, and operate in a well-ventilated place.
3. Need to wear protective gloves, masks and goggles and other personal protective equipment.
4. Storage should be sealed in a cool and dry place, avoid contact with oxidants and strong acid.
Last Update:2024-04-09 21:00:56