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4,5-Dihydro-4-oxofuro[3,2-c]pyridine

4,5-Dihydro-4-oxofuro[3,2-c]pyridine structure

CAS No.: 26956-43-4

Chemical Name:: 4,5-Dihydro-4-oxofuro[3,2-c]pyridine

Synonyms: 108561;Furo[3,2-c]pyridin-4-ol;5H-Furo[3,2-c]pyridin-4-one;FURO[3,2-C]PYRIDIN-4(5H)-ONE;4H,5H-furo[3,2-c]pyridin-4-one;4,5-Dihyro-4-Oxofuro[3,2]Pyridine;furanbenzo[3,2-c]pyridine-4(5H)-one;4-OXO-4,5-DIHYDROFURO[3,2-C]PYRIDINE;4,5-Dihydro-4-oxofuro[3,2-c]pyridine;Furo[3,2-c]pyridin-4(5H)-one (8CI, 9CI, ACI)

CBNumber:: CB5428634

Molecular Formula:: C7H5NO2

Molecular Weight:: 135.12

MDL Number:: MFCD00183939

MOL File:: 26956-43-4.mol

MSDS File:: SDS

Last updated:2026-09-12 18:53:32

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4,5-Dihydro-4-oxofuro[3,2-c]pyridine Properties

Melting point	202-204 °C
Boiling point	372.8±42.0 °C(Predicted)
Density	1.288±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
pka	12.11±0.20(Predicted)
Appearance	Light yellow to yellow Solid
InChI	InChI=1S/C7H5NO2/c9-7-5-2-4-10-6(5)1-3-8-7/h1-4H,(H,8,9)
InChIKey	FYNCIYHECMWXPK-UHFFFAOYSA-N
SMILES	C1(=O)NC=CC2OC=CC1=2

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS06
Signal word	Danger
Hazard statements	H301
Precautionary statements	P264-P270-P301+P310-P405-P501
Hazard Codes	T
Risk Statements	25
Safety Statements	45
RIDADR	2811
HazardClass	6.1
PackingGroup	Ⅲ
HS Code	2934999090

4,5-Dihydro-4-oxofuro[3,2-c]pyridine price More Price(44)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	CVT00122	Furo[3,2-c]pyridin-4-ol	26956-43-4	1g	$958	2023-06-20	Buy
AstaTech	SC2161	FURO[3,2-C]PYRIDIN-4(5H)-ONE 95%	26956-43-4	1G	$81	2026-04-30	Buy
AstaTech	SC2161	FURO[3,2-C]PYRIDIN-4(5H)-ONE 95%	26956-43-4	5G	$243	2026-04-30	Buy
Apolloscientific	OR25944	Furo[3,2-c]pyridin-4(5H)-one ≥95%	26956-43-4	250mg	$21	2026-06-04	Buy
Apolloscientific	OR25944	Furo[3,2-c]pyridin-4(5H)-one ≥95%	26956-43-4	1g	$32	2026-06-04	Buy

Product number	Packaging	Price	Buy
CVT00122	1g	$958	Buy
SC2161	1G	$81	Buy
SC2161	5G	$243	Buy
OR25944	250mg	$21	Buy
OR25944	1g	$32	Buy

4,5-Dihydro-4-oxofuro[3,2-c]pyridine Chemical Properties, Uses, Production

Synthesis

119924-26-4

26956-43-4

The general procedure for the synthesis of 4,5-dihydro-4-oxofuro[3,2]pyridine from (E)-3-(furan-2-yl)acryloyl azide was as follows: (E)-3-(furan-2-yl)acryloyl azide (150 g, 920 mmol) was added to toluene (800 mL) preheated to 100 °C and the reaction mixture was stirred for 30 min. Upon completion of the reaction, the solvent was removed by distillation under reduced pressure. The residue was dissolved in o-dichlorobenzene (800 mL) and iodine (1 g) was added as a catalyst. The reaction mixture was stirred at 180 °C for 2 h, followed by evaporation under reduced pressure to remove the solvent. The residue was dissolved in methanol, the precipitate was collected by filtration and the filtrate was concentrated under reduced pressure. Finally, the residue was washed with diisopropyl ether to afford the target product 4,5-dihydro-4-oxofuro[3,2]pyridine (100 g, 80% yield). The product was characterized by 1H-NMR (DMSO-d6): δ 6.85 (1H, dd, J = 7.1, 1.0 Hz), 6.92 (1H, dd, J = 1.9, 1.0 Hz), 7.29 (1H, d, J = 7.1 Hz), 7.86 (1H, d, J = 1.9 Hz), 11.42 (1H, brs).

References

[1] Patent: EP2100895, 2009, A1. Location in patent: Page/Page column 44
[2] Patent: WO2013/163244, 2013, A1. Location in patent: Paragraph 00273
[3] Patent: WO2016/37578, 2016, A1. Location in patent: Page/Page column 146
[4] Patent: WO2004/100947, 2004, A2. Location in patent: Page 20-21; 16
[5] Patent: WO2005/67900, 2005, A2. Location in patent: Page/Page column 39-40

4,5-Dihydro-4-oxofuro[3,2-c]pyridine synthesis

Synthesis of 4,5-Dihydro-4-oxofuro[3,2-c]pyridine from furan-2-acrylic acid azide

4,5-Dihydro-4-oxofuro[3,2-c]pyridine Preparation Products And Raw materials

Raw materials

Furan, 2-(2-isocyanatoethenyl)- Furo[3,2-c]pyridine, 5-oxide furan-2-acrylic acid azide Ethyl 3-(2-furyl)acrylate 3-(2-Furyl)acrylic acid

Ethyl chloroformate Furfural 1,2-Dichlorobenzene iodine Acetic anhydride

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Preparation Products

4-Bromofuro[3,2-c]pyridine Furo[3,2-c]pyridine-7-carbonitrile (9CI)

4,5-Dihydro-4-oxofuro[3,2-c]pyridine Suppliers

Global Suppliers ( 111)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai TBBMed Co.,Ltd	021-50498136 13564881053	products@tbbmed.com	China	180	55
Shaoyuan Technology (Shanghai) Co., Ltd.	021-50795510 4000665055	marketing@accelachem.com	China	9985	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Capot Chemical Co., Ltd	+86 (0) 571 85 58 67 18		China	18187	66
Shangchem Co., Ltd.	+86-21-68182121		China	881	52
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
China DongFan Chemical Co.,LTD	86-0571-85151182		China	5681	66
Shanghai Ennopharm Co., Ltd.	+86 (21) 6435-5022		China	4263	65
Syntechem Co.,Ltd		info@syntechem.com	China	12973	57
China Langchem Inc.	0086-21-58956006		China	7798	57

Supplier	Advantage
Shanghai TBBMed Co.,Ltd	55
Shaoyuan Technology (Shanghai) Co., Ltd.	58
J & K SCIENTIFIC LTD.	76
Capot Chemical Co., Ltd	66
Shangchem Co., Ltd.	52
Shanghai Hanhong Scientific Co.,Ltd.	64
China DongFan Chemical Co.,LTD	66
Shanghai Ennopharm Co., Ltd.	65
Syntechem Co.,Ltd	57
China Langchem Inc.	57

View Latest Price from 4,5-Dihydro-4-oxofuro[3,2-c]pyridine manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-06-25	4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE 26956-43-4	$1.10	1g	99.0% min	100 tons min	Shaanxi Dideu Medichem Co. Ltd
	2019-07-12	4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE 26956-43-4	$1.00	1KG	99%	1ton	Career Henan Chemical Co

4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE
26956-43-4
$1.10
99.0% min
Shaanxi Dideu Medichem Co. Ltd

4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE
26956-43-4
$1.00
99%
Career Henan Chemical Co

4,5-Dihydro-4-oxofuro[3,2-c]pyridine Spectrum

4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE(26956-43-4)¹HNMR

26956-43-4 (4,5-Dihydro-4-oxofuro[3,2-c]pyridine) Related Search:

Furo[3,4-c]pyridin-1(3h)-one furo[3,2-b]pyridine 4,5-Dihydro-4-oxofuro[3,2-c]pyridine 5-Amino-6-methylfuro[3,2-c]pyridin-4(5H)-one 4-(2-Nitrophenyl)-2-methyl-5,7-dihydro-5-oxofuro[3,4-b]pyridine-3-carboxylic acid methyl ester

4-(2,3-Dichlorophenyl)-2-methyl-5,7-dihydro-5-oxofuro[3,4-b]pyridine-3-carboxylic acid 2-[2-(Trifluoromethyl)phenyl]-4-methyl-5,7-dihydro-5-oxofuro[3,4-b]pyridine-3-carboxylic acid methyl ester SALOR-INT L299502-1EA SALOR-INT L299510-1EA SALOR-INT L299529-1EA

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FURO[3,2-C]PYRIDIN-4(5H)-ONE 4-OXO-4,5-DIHYDROFURO[3,2-C]PYRIDINE 4,5-Dihyro-4-Oxofuro[3,2]Pyridine 4H,5H-furo[3,2-c]pyridin-4-one 5H-Furo[3,2-c]pyridin-4-one Furo[3,2-c]pyridin-4-ol 108561 4,5-DIHYDRO-4-OXOFURO[3,2-C]PYRIDINE ISO 9001：2015 REACH Furo[3,2-c]pyridin-4(5H)-one (8CI, 9CI, ACI) furanbenzo[3,2-c]pyridine-4(5H)-one 4,5-Dihydro-4-oxofuro[3,2-c]pyridine 26956-43-4 Fused Ring Systems