4-Nitrobenzenepropionic acid
3-(4-nitrophenyl)propionic acid
CAS: 16642-79-8
Molecular Formula: C9H9NO4
4-Nitrobenzenepropionic acid - Names and Identifiers
| Name | 3-(4-nitrophenyl)propionic acid |
| Synonyms | 3-(4-NITROPHENYL)PROPIONIC 4-Nitrobenzenepropionic acid 4-Nitrobenzenepropanoic acid 3-(4-NITROPHENYL)PROPIONIC ACID 3-(4-NITROPHENYL)PROPANOIC ACID 3-(4-nitrophenyl)propanoic acid 3-(4-nitrophenyl)propionic acid Benzenepropanoic acid, 4-?nitro- |
| CAS | 16642-79-8 |
| EINECS | 672-244-1 |
| InChI | InChI=1/C9H9NO4/c11-9(12)6-3-7-1-4-8(5-2-7)10(13)14/h1-2,4-5H,3,6H2,(H,11,12) |
4-Nitrobenzenepropionic acid - Physico-chemical Properties
| Molecular Formula | C9H9NO4 |
| Molar Mass | 195.17 |
| Density | 1.3544 (rough estimate) |
| Melting Point | 167-170°C |
| Boling Point | 331.83°C (rough estimate) |
| Flash Point | 170.5°C |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 1.53E-06mmHg at 25°C |
| pKa | 4.47(at 25℃) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.5700 (estimate) |
| Physical and Chemical Properties | Appearance: light yellow crystalline powder |
4-Nitrobenzenepropionic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| HS Code | 29163990 |
| Hazard Note | Harmful |
4-Nitrobenzenepropionic acid - Introduction
3-(4-nitrophenyl)propionic acid, also known as 4-nitrophenyl propionic acid or PBA(p-nitrobenzylamine), is an organic compound. Its chemical formula is C9H9NO4.
Nature:
3-(4-nitrophenyl)propionic acid is a solid, white to yellowish crystalline. It has low solubility, almost insoluble in water, and high solubility in organic solvents such as ethanol and dimethyl sulfoxide. Its melting point is between 92-95°C.
Use:
3-(4-nitrophenyl)propionic acid is mainly used in the field of organic synthesis. It is an important raw material and intermediate for the synthesis of pesticides, dyes, pharmaceuticals and other organic compounds.
Method:
3-(4-nitrophenyl)propionic acid can be prepared by the reaction of phenethyl alcohol and nitric acid. First, 4-nitrophenylethanol is formed by nitration of phenylethanol in the presence of nitric acid. Then, 4-nitrophenylethanol reacts with sodium hydroxide to remove one molecule of water under alkaline conditions and mild heating to produce 3-(4-nitrophenyl)propionic acid.
Safety Information:
3-(4-nitrophenyl)propionic acid is an organic compound with a certain degree of danger. Wear protective equipment such as goggles and gloves during operation. Avoid contact with skin and eyes. In case of accidental contact with skin or eyes, rinse immediately with plenty of water and seek medical help. During use, attention should be paid to fire and explosion-proof measures to ensure good ventilation.
Nature:
3-(4-nitrophenyl)propionic acid is a solid, white to yellowish crystalline. It has low solubility, almost insoluble in water, and high solubility in organic solvents such as ethanol and dimethyl sulfoxide. Its melting point is between 92-95°C.
Use:
3-(4-nitrophenyl)propionic acid is mainly used in the field of organic synthesis. It is an important raw material and intermediate for the synthesis of pesticides, dyes, pharmaceuticals and other organic compounds.
Method:
3-(4-nitrophenyl)propionic acid can be prepared by the reaction of phenethyl alcohol and nitric acid. First, 4-nitrophenylethanol is formed by nitration of phenylethanol in the presence of nitric acid. Then, 4-nitrophenylethanol reacts with sodium hydroxide to remove one molecule of water under alkaline conditions and mild heating to produce 3-(4-nitrophenyl)propionic acid.
Safety Information:
3-(4-nitrophenyl)propionic acid is an organic compound with a certain degree of danger. Wear protective equipment such as goggles and gloves during operation. Avoid contact with skin and eyes. In case of accidental contact with skin or eyes, rinse immediately with plenty of water and seek medical help. During use, attention should be paid to fire and explosion-proof measures to ensure good ventilation.
Last Update：2024-04-09 21:01:54
