TIMTEC-BB SBB004223
5-Chloro-2-furaldehyde
CAS: 21508-19-0
Molecular Formula: C5H3ClO2
TIMTEC-BB SBB004223 - Names and Identifiers
| Name | 5-Chloro-2-furaldehyde |
| Synonyms | TIMTEC-BB SBB004223 5-CHLORO-2-FURALDEHYDE 5-Chloro-2-furaldehyde 5-chlorofuran-2-carbaldehyde 5-chlorofuran-2-carboxaldehyde 2-Furancarboxaldehyde, 5-chloro- |
| CAS | 21508-19-0 |
| EINECS | 627-276-0 |
| InChI | InChI=1/C5H3ClO2/c6-5-2-1-4(3-7)8-5/h1-3H |
TIMTEC-BB SBB004223 - Physico-chemical Properties
| Molecular Formula | C5H3ClO2 |
| Molar Mass | 130.53 |
| Density | 1.361±0.06 g/cm3(Predicted) |
| Melting Point | 34-37 °C (lit.) |
| Boling Point | 70°C 10mm |
| Flash Point | 190°F |
| Water Solubility | Insoluble in water. |
| Solubility | Acetone (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.553mmHg at 25°C |
| Appearance | White to yellow powder |
| Color | White to off-white |
| Exposure Limit | ACGIH: STEL 1000 ppmOSHA: TWA 1000 ppm(1900 mg/m3)NIOSH: IDLH 3300 ppm; TWA 1000 ppm(1900 mg/m3) |
| BRN | 108401 |
| Storage Condition | 2-8°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.542 |
| MDL | MFCD02752599 |
TIMTEC-BB SBB004223 - 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. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29321900 |
TIMTEC-BB SBB004223 - Reference Information
| application | 5-chloro-2-furfural can be used as an intermediate in pharmaceutical synthesis, can be prepared from furfural as a reaction raw material, and can also be used in chemical industry and other fields, such as the preparation of a multifunctional composite admixture for concrete. |
| Preparation | Furfural (30mmol) and ZnCl2(30mmol) are dissolved in AcOH(30mL) and stirred at room temperature. After 1 hour, a small amount of acetic acid (5mL) in the substrate (10mmol) was added. The mixture was stirred at 70°C for 24 hours, and the mixture was diluted with Et2O(100mL), followed by washing with 0.1N Na2S2O3(50mL),0.1N NaHCO3(20mL) and salt water (20mL). The organic phase is dried (Na2SO4), the solvent is removed to obtain the crude product, which is purified by column chromatography or vacuum distillation to obtain the product 5-chloro-2-furfural with 10% yield. |
Last Update：2024-04-09 20:52:54
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View History
TIMTEC-BB SBB004223
N-(3,5-二氯吡啶-4-基)-3-(环丙基甲氧基-4-羟基苯甲酰胺
Chromate, [3-[[2-amino-5-hydroxy-6-[(2-hydroxy-5-nitro-3-sulfophenyl)azo]-7-sulfo-1-naphthalenyl]azo]-2-hydroxy-5-sulfobenzoato (6-)]-, disodium hydrogen
Ambroxol impurity D HCl
RO 3306
1H-pyrazol-1-ylacetonitrile
N-(3,5-二氯吡啶-4-基)-3-(环丙基甲氧基-4-羟基苯甲酰胺
Chromate, [3-[[2-amino-5-hydroxy-6-[(2-hydroxy-5-nitro-3-sulfophenyl)azo]-7-sulfo-1-naphthalenyl]azo]-2-hydroxy-5-sulfobenzoato (6-)]-, disodium hydrogen
Ambroxol impurity D HCl
RO 3306
1H-pyrazol-1-ylacetonitrile