ChemicalBook > CAS DataBase List > 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID

4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID

Product Name
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
CAS No.
56671-28-4
Chemical Name
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
Synonyms
AKOS BBS-00000134;BUTTPARK 29\08-32;IFLAB-BB F1901-0074;4 5 6 7-TETRAHYDRO-4-OXOBENZOFURAN-3- &;4,5,6,7-Tetrahydro-4-oxobenzofuran-3-caroxylic acid;4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid;4-OXO-4,5,6,7-TETRAHYDROCOUMARONE-3-CARBOXYLIC ACID;4-oxo-6,7-dihydro-5H-1-benzofuran-3-carboxylic acid;4,5,6,7-Tetrahydro-4-oxobenzofuran-3-carboxylic acid;4-OXO-4,5,6,7-TETRAHYDROBENZOFURAN-3-CARBOXYLIC ACID
CBNumber
CB0752330
Molecular Formula
C9H8O4
Formula Weight
180.16
MOL File
56671-28-4.mol
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4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Property

Melting point:
140 °C
Boiling point:
383.5±42.0 °C(Predicted)
Density 
1.406±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
3.74±0.20(Predicted)
CAS DataBase Reference
56671-28-4
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Safety

Hazard Codes 
C
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
Hazard Note 
Corrosive
HazardClass 
IRRITANT
HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

Precautionary statements

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

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

P310Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

TRC
Product number
O870653
Product name
4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylicAcid
Packaging
1g
Price
$240
Updated
2021/12/16
SynQuest Laboratories
Product number
2H29-1-08
Product name
4-Oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylicacid
Packaging
5G
Price
$312
Updated
2021/12/16
Matrix Scientific
Product number
046887
Product name
4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid
Purity
>95%
Packaging
5g
Price
$346
Updated
2021/12/16
ChemScene
Product number
CS-0060763
Product name
4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylicacid
Packaging
100mg
Price
$63
Updated
2021/12/16
ChemScene
Product number
CS-0060763
Product name
4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylicacid
Packaging
250mg
Price
$105
Updated
2021/12/16
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4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Chemical Properties,Usage,Production

Chemical Properties

White needle crystals. Melting point 141℃.

Uses

4-Oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid can be used as an intermediate of Propala.

Definition

ChEBI: 4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid is a member of benzofurans.

Synthesis

The methanol solution of resorcinol and potassium hydroxide is used to react with hydrogen under the action of active nickel to generate potassium 3-ketocyclohex-1-enolate, which is then cyclized with ethyl bromopyruvate under alkaline conditions , and then acidified to obtain ?4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid.

4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Methanol solution Ethyl bromopyruvate Resorcinol

Preparation Products

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4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Suppliers

Belgium 1 Canada 1 China 41 Germany 4 India 1 Switzerland 1 United Kingdom 5 United States 8 Global 62
Alchem Pharmtech,Inc.
Tel
8485655694
Email
sales@alchempharmtech.com
Country
United States
ProdList
63711
Advantage
58
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View Lastest Price from 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID manufacturers

Career Henan Chemical Co
Product
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID 56671-28-4
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
200KG
Release date
2018-08-15

56671-28-4, 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACIDRelated Search:

2-methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid METHYL 4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLATE 6,6-DIMETHYL-4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLIC ACID ETHYL 2,5,5-TRIMETHYL-7-OXO-3,4,5,6-TETRAHYDRO-3-OXAINDENECARBOXYLATE 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID

  • 4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid
  • 4,5,6,7-Tetrahydro-4-oxobenzofuran-3-caroxylic acid
  • 4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLIC ACID
  • 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
  • 4-OXO-4,5,6,7-TETRAHYDROBENZOFURAN-3-CARBOXYLIC ACID
  • 4-OXO-4,5,6,7-TETRAHYDROCOUMARONE-3-CARBOXYLIC ACID
  • AKOS BBS-00000134
  • IFLAB-BB F1901-0074
  • BUTTPARK 29\08-32
  • 4 5 6 7-TETRAHYDRO-4-OXOBENZOFURAN-3- &
  • 4,5,6,7-Tetrahydro-4-oxobenzofuran-3-carboxylic acid
  • 3-Benzofurancarboxylicacid, 4,5,6,7-tetrahydro-4-oxo-
  • 4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid, 3-Carboxy-4-oxo-4,5,6,7-tetrahydrobenzo[b]furan
  • 4-oxo-6,7-dihydro-5H-1-benzofuran-3-carboxylic acid
  • 56671-28-4