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

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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

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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.

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N-Bromosuccinimide Price

AK Scientific

Product number: 2969DF
Product name: 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
Packaging: 500mg
Price: $253
Updated: 2021/12/16

Chemenu

Product number: CM199218
Product name: 4,5-dibromo-3-methylthiophene-2-carboxylicacid
Purity: 95%
Packaging: 1g
Price: $422
Updated: 2021/12/16

Crysdot

Product number: CD11044387
Product name: 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
Purity: 95+%
Packaging: 1g
Price: $447
Updated: 2021/12/16

Arctom

Product number: AS097632
Product name: 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
Purity: ≥95%
Packaging: 25g
Price: $882
Updated: 2021/12/16

Ambeed

Product number: A436096
Product name: 4,5-Dibromo-3-methylthiophene-2-carboxylicacid
Purity: 95+%
Packaging: 25g
Price: $891
Updated: 2021/12/16

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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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4,5-Dibromo-3-methylthiophene-2-carboxylic acid Suppliers

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