4,5-Dibromo-3-methylthiophene-2-carboxylic acid
- Product Name
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid
- CAS No.
- 854626-32-7
- Chemical Name
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid
- Synonyms
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid;4,5-dibromo-3-methyl-2-Thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 4,5-dibromo-3-methyl-
- CBNumber
- CB23064858
- Molecular Formula
- C6H4Br2O2S
- Formula Weight
- 299.97
- MOL File
- 854626-32-7.mol
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Property
- Melting point:
- 225-226 °C
- Boiling point:
- 369.8±42.0 °C(Predicted)
- Density
- 2.141±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- pka
- 3.48±0.10(Predicted)
- Appearance
- White to off-white Solid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 2969DF
- Product name
- 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
- Packaging
- 500mg
- Price
- $253
- Updated
- 2021/12/16
- Product number
- A436096
- Product name
- 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
- Purity
- 95+%
- Packaging
- 250mg
- Price
- $31
- Updated
- 2021/12/16
- Product number
- AS097632
- Product name
- 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
- Purity
- ≥95%
- Packaging
- 250mg
- Price
- $31
- Updated
- 2021/12/16
- Product number
- AS097632
- Product name
- 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
- Purity
- ≥95%
- Packaging
- 1g
- Price
- $71
- Updated
- 2021/12/16
- Product number
- A436096
- Product name
- 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
- Purity
- 95+%
- Packaging
- 1g
- Price
- $72
- Updated
- 2021/12/16
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Chemical Properties,Usage,Production
Preparation
4,5-Dibromo-3-methyl-2-thiophenecarboxylic acid synthesis: 4,5-dibromo-3-methyl-2-thiophenecarbonitrile (26.2 g, 92.2 mmol), EtOH (175 mL), water (175 mL), and NaOH (18.6 g, 466 mmol) were stirred together at 80°C for 1 h. The solvent was removed, the solids were collected by filtration, dissolved in water, and washed with CH2Cl2. The water layer was acidified with 37% HCl, the white solid was collected by filtration and dried under vacuum at 60°C to give 25.9 g (94% wt.) of 4,5-dibromo-3-methyl-2-thiophenecarboxylic acid: m.p. 225-226°C; 1H NMR (CDCl3) 2.5 (s).
4,5-Dibromo-3-methylthiophene-2-carboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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