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

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
Molecular Weight:
164.16
MDL Number:
MFCD00671526
MOL File:
35700-40-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 22:44:03
Product description Number Pack Size Price
2,3-Dihydrobenzofuran-7-carboxylic Acid >98.0%(T) D2446 1g $74
2,3-Dihydrobenzofuran-7-carboxylic Acid >98.0%(T) D2446 5g $239
2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% OR101066 100mg $21
2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% OR101066 250mg $24
2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% OR101066 1g $26
More product size

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Properties

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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi,Xn
Risk Statements  22-51
HazardClass  IRRITANT
HS Code  2932990090
NFPA 704
0
2 0

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID price More Price(46)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical D2446 2,3-Dihydrobenzofuran-7-carboxylic Acid >98.0%(T) 35700-40-4 1g $74 2026-04-30 Buy
TCI Chemical D2446 2,3-Dihydrobenzofuran-7-carboxylic Acid >98.0%(T) 35700-40-4 5g $239 2026-04-30 Buy
Apolloscientific OR101066 2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% 35700-40-4 100mg $21 2026-06-04 Buy
Apolloscientific OR101066 2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% 35700-40-4 250mg $24 2026-06-04 Buy
Apolloscientific OR101066 2,3-Dihydrobenzo[b]furan-7-carboxylic acid 99% 35700-40-4 1g $26 2026-06-04 Buy
Product number Packaging Price Buy
D2446 1g $74 Buy
D2446 5g $239 Buy
OR101066 100mg $21 Buy
OR101066 250mg $24 Buy
OR101066 1g $26 Buy

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Chemical Properties,Uses,Production

Synthesis

2,3-Dihydrobenzofuran

496-16-2

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID

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

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View Lastest Price from 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,3-Dihydro-1-benzofuran-7-carboxylic acid pictures 2024-03-28 2,3-Dihydro-1-benzofuran-7-carboxylic acid
35700-40-4
 25kg 98% PNP Biotech Co. Ltd
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID pictures 2021-08-12 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
35700-40-4
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID pictures 2020-01-07 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
35700-40-4
 1g 95%min 20kg/month Nanjing jinheyou Trading Co., Ltd.
7-COUMARANCARBOXYLIC ACID 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC AID 2,3-DIHYDROBENZO[B]FURAN-7-CARBOXYLIC ACID BUTTPARK 97\04-61 Dihydrobenzofurancarboxylicacid 2,3-Dihydrobenzofuran-7-carboxylicacid(7-Coumarancarboxylicacid) 2,3-Dihydro-1-benzofuran-7-carboxylic acid 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 96+% 2,3-Dihydrobenzofuran-7-carboxylic acid ,97% 7-(2,3-dihydrobenzofuranyl)-carboxylic acid 2,3-Dihydro-1-benzofuran-7-carboxylic acid, 7-Carboxy-2,3-dihydrobenzo[b]furan 7-benzofurancarboxylic acid, 2,3-dihydro- 2,3-Dihydro-7-benzofurancarboxylic acid 2,3-Dihydrobenzofuran-7-carboxylicAcid> 2,3-dihydro-1-benzofuran-7-carboxylicaci 35700-40-4 37500-40-4 301836-57-8
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