ChemicalBook > CAS DataBase List > 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID

Product Name
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
CAS No.
35700-40-4
Chemical Name
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
Synonyms
BUTTPARK 97\04-61;7-COUMARANCARBOXYLIC ACID;Dihydrobenzofurancarboxylicacid;2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC AID;2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID;2,3-Dihydro-7-benzofurancarboxylic acid;2,3-dihydro-1-benzofuran-7-carboxylicaci;7-benzofurancarboxylic acid, 2,3-dihydro-;2,3-Dihydrobenzofuran-7-carboxylicAcid>2,3-DIHYDROBENZO[B]FURAN-7-CARBOXYLIC ACID
CBNumber
CB0425951
Molecular Formula
C9H8O3
Formula Weight
164.16
MOL File
35700-40-4.mol
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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Property

Melting point:
169-171
Boiling point:
330.6±31.0 °C(Predicted)
Density 
1.344±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
form 
powder to crystal
pka
4.16±0.20(Predicted)
color 
White to Orange to Green
InChI
InChI=1S/C9H8O3/c10-9(11)7-3-1-2-6-4-5-12-8(6)7/h1-3H,4-5H2,(H,10,11)
InChIKey
UHXBMSNEECJPSX-UHFFFAOYSA-N
SMILES
O1C2=C(C(O)=O)C=CC=C2CC1
CAS DataBase Reference
35700-40-4(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
22-51
HazardClass 
IRRITANT
HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

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N-Bromosuccinimide Price

TCI Chemical
Product number
D2446
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Purity
>98.0%(T)
Packaging
1g
Price
$97
Updated
2025/07/31
TCI Chemical
Product number
D2446
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Purity
>98.0%(T)
Packaging
5g
Price
$306
Updated
2025/07/31
TRC
Product number
D454913
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Packaging
500mg
Price
$175
Updated
2021/12/16
AK Scientific
Product number
W5722
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Packaging
1g
Price
$178
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD121630
Product name
2,3-Dihydro-1-benzofuran-7-carboxylic acid
Packaging
2g
Price
$218
Updated
2021/12/16
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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Chemical Properties,Usage,Production

Synthesis

496-16-2

35700-40-4

1. Synthesis of 2,3-dihydrobenzo[b]furan-7-carboxylic acid (15a): N,N,N',N'-tetramethylethylenediamine (TMEDA) (24.3 g, 0.21 mol) was added dropwise to a solution of n-BuLi (1.7 M, 123 mL, 0.21 mol) in 400 mL of hexanes under argon protection followed by the addition of a solution of 2,3-dihydrobenzo[b ] furan (14) (12.56 g, 0.11 mol) solution in hexane (40 mL). The reaction mixture was stirred at room temperature for 4 hours. The reaction mixture was slowly poured into dry ice pre-washed with anhydrous ether, followed by stirring at room temperature overnight. After completion of the reaction, the organic and aqueous layers were separated by diluting the mixture with 300 mL of water. The aqueous layer was acidified to pH 1 with concentrated hydrochloric acid and precipitated as a white solid upon cooling. The precipitate was collected by filtration and recrystallized with dichloromethane (CH2Cl2) to give the target product 15a (9.43 g, 54.7% yield) as a white solid with a melting point of 167-169.5 °C.

References

[1] Patent: US4888353, 1989, A
[2] Patent: EP234872, 1991, B1
[3] Patent: US5122361, 1992, A

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Hexane N,N,N',N'-Tetramethylethylenediamine Sodium sulfate Carbon dioxide 2,3-Dihydrobenzofuran Ethyl acetate Hydrochloric acid n-Butyllithium

Preparation Products

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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Suppliers

Americas 1 Belgium 1 China 100 Europe 1 France 1 Germany 3 India 2 Japan 1 Switzerland 1 United Kingdom 10 United States 16 Global 137
Tianjin Derchemist Science & Technology Co., Ltd.
Tel
22-58627059 13920586291
Fax
022-58620305
Email
zdcomcon@126.com
Country
China
ProdList
3829
Advantage
50
Wulechem Co., Ltd.
Tel
13761914825
Fax
02131135716
Email
wulesian@wulechem.com
Country
China
ProdList
308
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
PharmaBlock Sciences (Nanjing),Inc.
Tel
025-86918202 4000255188
Fax
86-025-86918232
Email
sales@pharmablock.com
Country
China
ProdList
5000
Advantage
55
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
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021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
Advantage
56
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18207
Advantage
66
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.
Tel
+86-21-54098501
Fax
+86-21-54096319
Email
sales@sinch.com.cn
Country
China
ProdList
11598
Advantage
64
Shanghai Longsheng chemical Co.,Ltd.
Tel
021-58099652-8005 13585536065
Fax
021-58099609
Email
bin.wu@shlschem.com
Country
China
ProdList
9878
Advantage
59
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View Lastest Price from 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID manufacturers

PNP Biotech Co. Ltd
Product
2,3-Dihydro-1-benzofuran-7-carboxylic acid 35700-40-4
Price
US $0.00/kg
Min. Order
25kg
Purity
98%
Supply Ability
Inquiry
Release date
2023-07-17
Zhuozhou Wenxi import and Export Co., Ltd
Product
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 35700-40-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11
Nanjing jinheyou Trading Co., Ltd.
Product
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 35700-40-4
Price
US $0.00/g
Min. Order
1g
Purity
95%min
Supply Ability
20kg/month
Release date
2020-01-06

35700-40-4, 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACIDRelated Search:

5-BROMO-2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 97+%,5-BROMO-2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 2,3-dihydrobenzofuran-6-carboxylic acid 2,2-DIMETHYL-2,3-DIHYDRO-1-BENZOFURAN-7-CARBOXYLIC ACID 2,3-dihydrobenzofuran-4-carboxylic acid 2,3-DIHYDROBENZOFURAN-5-CARBOXYLIC ACID 2,3-Dihydrobenzofuran 4-hydroxy-2,2-dimethyl-2,3-dihydrobenzofuran-6-carboxylic acid 2,3-Dihydrobenzofuran-3-carboxylic acid Fomannoxin acid 4-Hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid 5-(1,2-Benzisoxazol-3-yl)-6,7-dichloro-2,3-dihydrobenzofuran-2-carboxylic acid 6,7-Dichloro-5-[(thiophen-2-yl)carbonyl]-2,3-dihydrobenzofuran-2-carboxylic acid (2R)-6,7-dichloro-5-(dimethylsulfamoyl)-2,3-dihydrobenzofuran-2-carboxylic acid 2-Isopropyl-3-methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester 2,7-DIMETHYL-2,3-DIHYDROBENZOFURAN-6-CARBOXYLIC ACID 2-Ethyl-3-methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester 3-Methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester

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