4-broMo-5-chlorothiophene-2-carboxylic acid

Product Name: 4-broMo-5-chlorothiophene-2-carboxylic acid
CAS No.: 60729-37-5
Chemical Name: 4-broMo-5-chlorothiophene-2-carboxylic acid
Synonyms: 2-Chloro-3-bromo-5-thiophenecarobylic acid;4-broMo-5-chlorothiophene-2-carboxylic acid;4-bromo-5-chloro-2-Thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 4-bromo-5-chloro-
CBNumber: CB42606105
Molecular Formula: C5H2BrClO2S
Formula Weight: 241.49
MOL File: 60729-37-5.mol

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4-broMo-5-chlorothiophene-2-carboxylic acid Property

Melting point:: >200 °C
Boiling point:: 342.3±42.0 °C(Predicted)
Density: 2.019±0.06 g/cm3(Predicted)
storage temp.: under inert gas (nitrogen or Argon) at 2–8 °C
form: powder
pka: 3.31±0.10(Predicted)
color: White

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Safety

HS Code: 2934999090

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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.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Ark Pharm

Product number: P000028774
Product name: 4-Bromo-5-chlorothiophene-2-carboxylic acid
Purity: 96%
Packaging: 100mg
Price: $131
Updated: 2021/12/16

Apolloscientific

Product number: OR31657
Product name: 4-Bromo-5-chlorothiophene-2-carboxylicacid
Purity: 98%
Packaging: 250mg
Price: $174
Updated: 2021/12/16

Ark Pharm

Product number: P000028774
Product name: 4-Bromo-5-chlorothiophene-2-carboxylic acid
Purity: 96%
Packaging: 250mg
Price: $210
Updated: 2021/12/16

Apolloscientific

Product number: OR31657
Product name: 4-Bromo-5-chlorothiophene-2-carboxylicacid
Purity: 98%
Packaging: 1g
Price: $522
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0365706
Product name: 4-BROMO-5-CHLOROTHIOPHENE-2-CARBOXYLIC ACID
Purity: 95.00%
Packaging: 250MG
Price: $525
Updated: 2021/12/16

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4-broMo-5-chlorothiophene-2-carboxylic acid Chemical Properties,Usage,Production

Synthesis

24065-33-6

60729-37-5

The general procedure for the synthesis of 4-bromo-5-chlorothiophene-2-carboxylic acid from 2-chlorothiophene-5-carboxylic acid was as follows: a solution of bromine (634 μL, 12.3 mmol) in acetic acid (2.5 mL) was added slowly and dropwise to an acetic acid solution (25 mL) containing 5-chloro-2-thiophenecarboxylic acid (2 g, 12.3 mmol) and ferric chloride (399 mg, 2.50 mmol). mL) at 25 °C. Subsequently, the reaction mixture was heated to reflux during which bromine (634 μL, 12.3 mmol) and ferric chloride (399 mg, 2.50 mmol) were added in portions. After the reaction lasted for 7 days, the reaction solution was poured into ice water, the precipitate precipitated was filtered and washed with cold water to finally obtain 4-bromo-5-chlorothiophene-2-carboxylic acid (3 g, quantitative yield) as a yellow powder. The product was analyzed by liquid chromatography-mass spectrometry (LC-MS) and showed m/z 242 ([M+H]+).

References

[1] Patent: WO2008/98104, 2008, A1. Location in patent: Page/Page column 81-82

4-broMo-5-chlorothiophene-2-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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4-broMo-5-chlorothiophene-2-carboxylic acid Suppliers

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