4H-1-Benzothiopyran-4-one, 2,3-dihydro-
thiochroman-4-one
CAS: 3528-17-4
Molecular Formula: C9H8OS
4H-1-Benzothiopyran-4-one, 2,3-dihydro- - Names and Identifiers
| Name | thiochroman-4-one |
| Synonyms | thiochroman-4-one THIOCHROMAN-4-ONE 1-THIOCHROMAN-4-ONE 2,3-dihydrothiochroMen-4-one 2,3-Dihydro-4H-thiochromen-4-one 2,3-DIHYDRO-4H-1-BENZOTHIOPYRAN-4-ONE 4H-1-Benzothiopyran-4-one, 2,3-dihydro- |
| CAS | 3528-17-4 |
| EINECS | 222-548-1 |
| InChI | InChI=1/C9H6OS/c10-8-5-6-11-9-4-2-1-3-7(8)9/h1-6H |
4H-1-Benzothiopyran-4-one, 2,3-dihydro- - Physico-chemical Properties
| Molecular Formula | C9H8OS |
| Molar Mass | 164.22 |
| Density | 1.2487 |
| Melting Point | 28-30 °C (lit.) |
| Boling Point | 154 °C/12 mmHg (lit.) |
| Flash Point | >230°F |
| Vapor Presure | 0.0085mmHg at 25°C |
| Appearance | Low Melting Solid |
| Color | Orange |
| Storage Condition | Room Temprature |
| Refractive Index | n20/D 1.6395(lit.) |
4H-1-Benzothiopyran-4-one, 2,3-dihydro- - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3335 |
| WGK Germany | 3 |
| HS Code | 29309099 |
4H-1-Benzothiopyran-4-one, 2,3-dihydro- - Introduction
thiochroman-4-one is an organic compound with the chemical formula C9H8OS. It has a pale yellow crystalline solid and is non-volatile at ambient temperature and pressure. The following is a description of the nature, use, preparation and safety information of the thiochroman-4-one:
Nature:
1. Appearance: The thiochroman-4-one is a light yellow crystalline solid.
2. solubility: it is soluble in organic solvents such as alcohols, ethers and chlorinated hydrocarbons, insoluble in water.
3. melting point: the melting point of thiochroman-4-one is about 75-78 degrees Celsius.
Use:
thiochroman-4-one is mainly used in catalytic reactions in organic synthesis and can be used as an important organic catalyst. It plays a catalytic role in the synthesis of various organic compounds, such as in the cyclization reaction, oxidation reaction and reduction reaction.
Preparation Method:
The thiochroman-4-one can be prepared by reacting elemental sulfur with chroman-4-one. A common method is to use sulfur powder to heat it with chroman-4-one. The reaction is usually carried out at higher temperatures.
Safety Information:
1. thiochroman-4-one is relatively stable under normal conditions, but it may cause fire or explosion at high temperature or in the presence of oxygen.
2. During operation, it is recommended to wear appropriate protective gloves, glasses and laboratory coats to avoid direct contact and inhalation of the compound.
3. Work should be carried out in a well-ventilated place to ensure the circulation of indoor air.
4. thiochroman-4-one may be toxic to aquatic organisms and should be avoided.
When using and handling thiochroman-4-one, please strictly follow the laboratory's safety procedures and consult professional guidance.
Nature:
1. Appearance: The thiochroman-4-one is a light yellow crystalline solid.
2. solubility: it is soluble in organic solvents such as alcohols, ethers and chlorinated hydrocarbons, insoluble in water.
3. melting point: the melting point of thiochroman-4-one is about 75-78 degrees Celsius.
Use:
thiochroman-4-one is mainly used in catalytic reactions in organic synthesis and can be used as an important organic catalyst. It plays a catalytic role in the synthesis of various organic compounds, such as in the cyclization reaction, oxidation reaction and reduction reaction.
Preparation Method:
The thiochroman-4-one can be prepared by reacting elemental sulfur with chroman-4-one. A common method is to use sulfur powder to heat it with chroman-4-one. The reaction is usually carried out at higher temperatures.
Safety Information:
1. thiochroman-4-one is relatively stable under normal conditions, but it may cause fire or explosion at high temperature or in the presence of oxygen.
2. During operation, it is recommended to wear appropriate protective gloves, glasses and laboratory coats to avoid direct contact and inhalation of the compound.
3. Work should be carried out in a well-ventilated place to ensure the circulation of indoor air.
4. thiochroman-4-one may be toxic to aquatic organisms and should be avoided.
When using and handling thiochroman-4-one, please strictly follow the laboratory's safety procedures and consult professional guidance.
Last Update：2024-04-10 22:29:15
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CAS: 3528-17-4
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View History
4H-1-Benzothiopyran-4-one, 2,3-dihydro-
Oleyl dodecanoate
(S)-N-ALPHA-FMOC-N-EPSILON-BOC-ALPHA-METHYLLYSINE
2'-FLUORO[1,1'-BIPHENYL]-3-OL
N-METHYLDIOCTYLAMINE
2-THIEN-2-YLPYRIDINE
氟灭酸
19622-83-4
Kaempferol 3,4'-diglucoside 7-rhamnoside
GP 49689
Oleyl dodecanoate
(S)-N-ALPHA-FMOC-N-EPSILON-BOC-ALPHA-METHYLLYSINE
2'-FLUORO[1,1'-BIPHENYL]-3-OL
N-METHYLDIOCTYLAMINE
2-THIEN-2-YLPYRIDINE
氟灭酸
19622-83-4
Kaempferol 3,4'-diglucoside 7-rhamnoside
GP 49689