3,4-Dichlorophenyl isothiocyanate
3,4-Dichlorophenyl isothiocyanate
CAS: 6590-94-9
Molecular Formula: C7H3Cl2NS
3,4-Dichlorophenyl isothiocyanate - Names and Identifiers
| Name | 3,4-Dichlorophenyl isothiocyanate |
| Synonyms | AKOS 90254 3,4-DICHLOROPHENYL ISOTHIOCYANATE 3,4-Dichloroisothiocyanatobenzene 3,4-Dichlorophenyl isothiocyanate 1,2-dichloro-4-isothiocyanatobenzene 1,2-Dichloro-4-isothiocyanatobenzene Benzene, 1,2-dichloro-4-isothiocyanato- isothiocyanicacid,3,4-dichlorophenylester Isothiocyanic acid, 3,4-dichlorophenyl ester |
| CAS | 6590-94-9 |
| EINECS | 229-526-0 |
| InChI | InChI=1/C7H3Cl2NS/c8-6-2-1-5(10-4-11)3-7(6)9/h1-3H |
3,4-Dichlorophenyl isothiocyanate - Physico-chemical Properties
| Molecular Formula | C7H3Cl2NS |
| Molar Mass | 204.08 |
| Density | 1.422g/mLat 25°C(lit.) |
| Melting Point | 178 °C |
| Boling Point | 134-136°C7mm Hg(lit.) |
| Flash Point | >230°F |
| Vapor Presure | 0.00234mmHg at 25°C |
| Specific Gravity | 1.422 |
| BRN | 511101 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.68(lit.) |
| MDL | MFCD00037828 |
3,4-Dichlorophenyl isothiocyanate - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | 34 - Causes burns |
| Safety Description | S23 - Do not breathe vapour. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3265 8/PG 3 |
| WGK Germany | 3 |
| RTECS | NX8490000 |
| HS Code | 29309090 |
| Hazard Class | 8 |
| Packing Group | III |
3,4-Dichlorophenyl isothiocyanate - Introduction
The 3,4-Dichlorophenyl isothiocyanate, also known as the 3,4-Dichlorophenyl isothiocyanate, has the chemical formula C7H3Cl2NS.
Nature:
3,4-Dichlorophenyl isothiocyanate is a colorless to slightly yellow liquid. It has a melting point of 19-21 degrees Celsius and a boiling point of 121-122 degrees Celsius. It is insoluble in water, but can be dissolved in organic solvents such as ether, alcohol and benzene.
Use:
3,4-Dichlorophenyl isothiocyanate is mainly used in organic synthesis as an important intermediate. It can be used to synthesize a variety of organic compounds, such as pesticides, drugs and dyes. It can also be used in the synthesis of modified polymers, organic sulfur compounds and fungicides.
Preparation Method:
3,4-Dichlorophenyl isothiocyanate is usually prepared by reacting aniline with dichloroisothiocyanic acid. First, aniline is suspended in an acidic medium in the presence of hydrogen chloride, and then dichloroisothiocyanic acid is slowly added dropwise. The target product is finally obtained and purified by crystallization or distillation.
Safety Information:
3,4-Dichlorophenyl isothiocyanate should pay attention to the following safety precautions during use and storage:
-It is an irritating and corrosive substance that can cause irritation and burns after contact with the skin and eyes, so you should wear appropriate protective gloves and glasses when operating.
-It should be kept away from fire and high temperature, and stored in a sealed container to prevent reaction with moisture in the air.
-In use to ensure a well-ventilated operating environment, avoid inhalation of its vapor or dust.
-If swallowed or inhaled, seek medical attention immediately. In case of skin or eye contact, rinse immediately with plenty of water and seek medical advice.
Nature:
3,4-Dichlorophenyl isothiocyanate is a colorless to slightly yellow liquid. It has a melting point of 19-21 degrees Celsius and a boiling point of 121-122 degrees Celsius. It is insoluble in water, but can be dissolved in organic solvents such as ether, alcohol and benzene.
Use:
3,4-Dichlorophenyl isothiocyanate is mainly used in organic synthesis as an important intermediate. It can be used to synthesize a variety of organic compounds, such as pesticides, drugs and dyes. It can also be used in the synthesis of modified polymers, organic sulfur compounds and fungicides.
Preparation Method:
3,4-Dichlorophenyl isothiocyanate is usually prepared by reacting aniline with dichloroisothiocyanic acid. First, aniline is suspended in an acidic medium in the presence of hydrogen chloride, and then dichloroisothiocyanic acid is slowly added dropwise. The target product is finally obtained and purified by crystallization or distillation.
Safety Information:
3,4-Dichlorophenyl isothiocyanate should pay attention to the following safety precautions during use and storage:
-It is an irritating and corrosive substance that can cause irritation and burns after contact with the skin and eyes, so you should wear appropriate protective gloves and glasses when operating.
-It should be kept away from fire and high temperature, and stored in a sealed container to prevent reaction with moisture in the air.
-In use to ensure a well-ventilated operating environment, avoid inhalation of its vapor or dust.
-If swallowed or inhaled, seek medical attention immediately. In case of skin or eye contact, rinse immediately with plenty of water and seek medical advice.
Last Update：2024-04-09 21:01:54
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CAS: 6590-94-9
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