Oxacyclic compounds

Organic heterocyclic compounds that contain one or more oxygen atoms either within the ring's structure or linked to the ring.

1 – 15 of 335 results

Maleic Anhydride 99.0+%, TCI America™

CAS: 108-31-6 Molecular Formula: C4H2O3 Molecular Weight (g/mol): 98.06 MDL Number: MFCD00005518 InChI Key: FPYJFEHAWHCUMM-UHFFFAOYSA-N Synonym: maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147 PubChem CID: 7923 ChEBI: CHEBI:474859 IUPAC Name: 2,5-dihydrofuran-2,5-dione SMILES: O=C1OC(=O)C=C1

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PubChem CID	7923
CAS	108-31-6
Molecular Weight (g/mol)	98.06
ChEBI	CHEBI:474859
MDL Number	MFCD00005518
SMILES	O=C1OC(=O)C=C1
Synonym	maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147
IUPAC Name	2,5-dihydrofuran-2,5-dione
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

Thermo Scientific Chemicals Maleic anhydride, 98+%

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Specifications

PubChem CID	7923
CAS	108-31-6
Molecular Weight (g/mol)	98.06
ChEBI	CHEBI:474859
MDL Number	MFCD00005518
SMILES	O=C1OC(=O)C=C1
Synonym	maleic anhydride,2,5-furandione,maleic acid anhydride,toxilic anhydride,dihydro-2,5-dioxofuran,cis-butenedioic anhydride,2,5-dihydrofuran-2,5-dione,polymaleic anhydride,maleinanhydrid,rcra waste number u147
IUPAC Name	furan-2,5-dione
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

Thermo Scientific Chemicals Chromone-3-carboxylic acid, 98%

CAS: 39079-62-4 Molecular Formula: C10H6O4 Molecular Weight (g/mol): 190.154 MDL Number: MFCD00017338 InChI Key: PCIITXGDSHXTSN-UHFFFAOYSA-N Synonym: chromone-3-carboxylic acid,4-oxo-4h-chromene-3-carboxylic acid,4-oxo-4h-1-benzopyran-3-carboxylic acid,maybridge1_005842,3-carboxychromone,d04tgn,acmc-1ad65,4-oxo-chromene-3-carboxylic acid,4h-chromen-4-one-3-carboxylic acid PubChem CID: 181620 IUPAC Name: 4-oxochromene-3-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=O)C(=CO2)C(=O)O

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PubChem CID	181620
CAS	39079-62-4
Molecular Weight (g/mol)	190.154
MDL Number	MFCD00017338
SMILES	C1=CC=C2C(=C1)C(=O)C(=CO2)C(=O)O
Synonym	chromone-3-carboxylic acid,4-oxo-4h-chromene-3-carboxylic acid,4-oxo-4h-1-benzopyran-3-carboxylic acid,maybridge1_005842,3-carboxychromone,d04tgn,acmc-1ad65,4-oxo-chromene-3-carboxylic acid,4h-chromen-4-one-3-carboxylic acid
IUPAC Name	4-oxochromene-3-carboxylic acid
InChI Key	PCIITXGDSHXTSN-UHFFFAOYSA-N
Molecular Formula	C10H6O4

Thermo Scientific Chemicals 5-Methyl-3-phenyl-1,2,4-oxadiazole, 97%

CAS: 1198-98-7 Molecular Formula: C9H8N2O Molecular Weight (g/mol): 160.18 MDL Number: MFCD00085133 InChI Key: VRRLZUXQTZOCKJ-UHFFFAOYSA-N Synonym: phenylmethyloxadiazole,5-methyl-3-phenyl-1,2,4-oxadiazol,1,2,4-oxadiazole, 5-methyl-3-phenyl,1,4-oxadiazole, 5-methyl-3-phenyl,3-phenyl-5-methyl-1,2,4-oxadiazole,5-methyl-3-phenyl-1,2,4 oxadiazole,1,2,4-oxadiazole, 5-methyl-3-phenyl-8ci 9ci PubChem CID: 98806 IUPAC Name: 5-methyl-3-phenyl-1,2,4-oxadiazole SMILES: CC1=NC(=NO1)C1=CC=CC=C1

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PubChem CID	98806
CAS	1198-98-7
Molecular Weight (g/mol)	160.18
MDL Number	MFCD00085133
SMILES	CC1=NC(=NO1)C1=CC=CC=C1
Synonym	phenylmethyloxadiazole,5-methyl-3-phenyl-1,2,4-oxadiazol,1,2,4-oxadiazole, 5-methyl-3-phenyl,1,4-oxadiazole, 5-methyl-3-phenyl,3-phenyl-5-methyl-1,2,4-oxadiazole,5-methyl-3-phenyl-1,2,4 oxadiazole,1,2,4-oxadiazole, 5-methyl-3-phenyl-8ci 9ci
IUPAC Name	5-methyl-3-phenyl-1,2,4-oxadiazole
InChI Key	VRRLZUXQTZOCKJ-UHFFFAOYSA-N
Molecular Formula	C9H8N2O

Thermo Scientific Chemicals 5-(2-Furyl)-1H-pyrazole-3-carboxylic acid, 97%, Thermo Scientific™

CAS: 116153-81-2 Molecular Formula: C8H6N2O3 Molecular Weight (g/mol): 178.147 MDL Number: MFCD05170057 InChI Key: GKPSFQIKCROJOB-UHFFFAOYSA-N Synonym: 5-2-furyl-1h-pyrazole-3-carboxylic acid,5-furan-2-yl-1h-pyrazole-3-carboxylic acid,5-furan-2-yl-2h-pyrazole-3-carboxylic acid,3-furan-2-yl-1h-pyrazole-5-carboxylic acid,3-2-furyl-1h-pyrazole-5-carboxylic acid,1h-pyrazole-3-carboxylicacid, 5-2-furanyl,5-2-furyl pyrazole-3-carboxylic acid,acmc-20f1sn,3-2-furyl pyrazole-5-carboxylic acid PubChem CID: 654018 IUPAC Name: 5-(furan-2-yl)-1H-pyrazole-3-carboxylic acid SMILES: C1=COC(=C1)C2=CC(=NN2)C(=O)O

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Specifications

PubChem CID	654018
CAS	116153-81-2
Molecular Weight (g/mol)	178.147
MDL Number	MFCD05170057
SMILES	C1=COC(=C1)C2=CC(=NN2)C(=O)O
Synonym	5-2-furyl-1h-pyrazole-3-carboxylic acid,5-furan-2-yl-1h-pyrazole-3-carboxylic acid,5-furan-2-yl-2h-pyrazole-3-carboxylic acid,3-furan-2-yl-1h-pyrazole-5-carboxylic acid,3-2-furyl-1h-pyrazole-5-carboxylic acid,1h-pyrazole-3-carboxylicacid, 5-2-furanyl,5-2-furyl pyrazole-3-carboxylic acid,acmc-20f1sn,3-2-furyl pyrazole-5-carboxylic acid
IUPAC Name	5-(furan-2-yl)-1H-pyrazole-3-carboxylic acid
InChI Key	GKPSFQIKCROJOB-UHFFFAOYSA-N
Molecular Formula	C8H6N2O3

Thermo Scientific Chemicals 4-(2-Furyl)benzoic acid, 97%, Thermo Scientific™

CAS: 35461-98-4 Molecular Formula: C11H8O3 Molecular Weight (g/mol): 188.18 MDL Number: MFCD04039073 InChI Key: FOJYVBSPOBUCMV-UHFFFAOYSA-N Synonym: 4-2-furyl benzoic acid,4-furan-2-yl benzoic acid,4-furan-2-yl-benzoic acid,2-4-carboxyphenyl furan,4-fur-2-ylbenzoic acid,p-2-furyl benzoic acid,4-2-furanyl benzoic acid PubChem CID: 5138791 IUPAC Name: 4-(furan-2-yl)benzoic acid SMILES: OC(=O)C1=CC=C(C=C1)C1=CC=CO1

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Specifications

PubChem CID	5138791
CAS	35461-98-4
Molecular Weight (g/mol)	188.18
MDL Number	MFCD04039073
SMILES	OC(=O)C1=CC=C(C=C1)C1=CC=CO1
Synonym	4-2-furyl benzoic acid,4-furan-2-yl benzoic acid,4-furan-2-yl-benzoic acid,2-4-carboxyphenyl furan,4-fur-2-ylbenzoic acid,p-2-furyl benzoic acid,4-2-furanyl benzoic acid
IUPAC Name	4-(furan-2-yl)benzoic acid
InChI Key	FOJYVBSPOBUCMV-UHFFFAOYSA-N
Molecular Formula	C11H8O3

Thermo Scientific Chemicals Ethyl oxazole-5-carboxylate, 98%

CAS: 118994-89-1 Molecular Formula: C6H7NO3 Molecular Weight (g/mol): 141.126 MDL Number: MFCD04114930 InChI Key: KRMORCCAHXFIHF-UHFFFAOYSA-N Synonym: ethyl oxazole-5-carboxylate,5-oxazolecarboxylic acid, ethyl ester,5-oxazolecarboxylicacid, ethyl ester,oxazole-5-carboxylic acid ethyl ester,ethyloxazole-5-carboxylate,5-ethoxycarbonyloxazole,acmc-1c1iz,ksc510s9l,ethyl 5-oxazolecarboxylate,5-ethoxycarbonyl-1,3-oxazole PubChem CID: 10964603 IUPAC Name: ethyl 1,3-oxazole-5-carboxylate SMILES: CCOC(=O)C1=CN=CO1

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Specifications

PubChem CID	10964603
CAS	118994-89-1
Molecular Weight (g/mol)	141.126
MDL Number	MFCD04114930
SMILES	CCOC(=O)C1=CN=CO1
Synonym	ethyl oxazole-5-carboxylate,5-oxazolecarboxylic acid, ethyl ester,5-oxazolecarboxylicacid, ethyl ester,oxazole-5-carboxylic acid ethyl ester,ethyloxazole-5-carboxylate,5-ethoxycarbonyloxazole,acmc-1c1iz,ksc510s9l,ethyl 5-oxazolecarboxylate,5-ethoxycarbonyl-1,3-oxazole
IUPAC Name	ethyl 1,3-oxazole-5-carboxylate
InChI Key	KRMORCCAHXFIHF-UHFFFAOYSA-N
Molecular Formula	C6H7NO3

Thermo Scientific Chemicals 4-(3-Methyl-1,2,4-oxadiazol-5-yl)benzoic acid, 95%, Thermo Scientific™

CAS: 851048-56-1 Molecular Formula: C10H8N2O3 Molecular Weight (g/mol): 204.19 MDL Number: MFCD08741427 InChI Key: KXXLPIJOPGBFTA-UHFFFAOYSA-N Synonym: 4-3-methyl-1,2,4-oxadiazol-5-yl benzoic acid,benzoicacid, 4-3-methyl-1,2,4-oxadiazol-5-yl,benzoic acid, 4-3-methyl-1,2,4-oxadiazol-5-yl,methyloxadiazolylbenzoicacid,4-3-methyl-1,2,4 oxadiazol-5-yl-benzoic acid,4-3-methyl-1,2,4-oxadiazol-5-yl-benzoic acid PubChem CID: 22110111 IUPAC Name: 4-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid SMILES: CC1=NOC(=N1)C1=CC=C(C=C1)C(O)=O

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Specifications

PubChem CID	22110111
CAS	851048-56-1
Molecular Weight (g/mol)	204.19
MDL Number	MFCD08741427
SMILES	CC1=NOC(=N1)C1=CC=C(C=C1)C(O)=O
Synonym	4-3-methyl-1,2,4-oxadiazol-5-yl benzoic acid,benzoicacid, 4-3-methyl-1,2,4-oxadiazol-5-yl,benzoic acid, 4-3-methyl-1,2,4-oxadiazol-5-yl,methyloxadiazolylbenzoicacid,4-3-methyl-1,2,4 oxadiazol-5-yl-benzoic acid,4-3-methyl-1,2,4-oxadiazol-5-yl-benzoic acid
IUPAC Name	4-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid
InChI Key	KXXLPIJOPGBFTA-UHFFFAOYSA-N
Molecular Formula	C10H8N2O3

Thermo Scientific Chemicals 3-(2-Furyl)benzoic acid, 97%, Thermo Scientific™

CAS: 35461-99-5 Molecular Formula: C11H8O3 Molecular Weight (g/mol): 188.182 MDL Number: MFCD02690979 InChI Key: RQVVFGRDMHDHNI-UHFFFAOYSA-N Synonym: 3-furan-2-yl benzoic acid,3-2-furyl benzoic acid,3-fur-2-ylbenzoic acid,3-furan-2-yl-benzoic acid,m-2-furyl benzoic acid,benzoic acid, 3-2-furanyl PubChem CID: 5037933 IUPAC Name: 3-(furan-2-yl)benzoic acid SMILES: C1=CC(=CC(=C1)C(=O)O)C2=CC=CO2

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Specifications

PubChem CID	5037933
CAS	35461-99-5
Molecular Weight (g/mol)	188.182
MDL Number	MFCD02690979
SMILES	C1=CC(=CC(=C1)C(=O)O)C2=CC=CO2
Synonym	3-furan-2-yl benzoic acid,3-2-furyl benzoic acid,3-fur-2-ylbenzoic acid,3-furan-2-yl-benzoic acid,m-2-furyl benzoic acid,benzoic acid, 3-2-furanyl
IUPAC Name	3-(furan-2-yl)benzoic acid
InChI Key	RQVVFGRDMHDHNI-UHFFFAOYSA-N
Molecular Formula	C11H8O3

Thermo Scientific Chemicals Benzo[b]furan-3-acetonitrile, 99%

CAS: 52407-43-9 Molecular Formula: C10H7NO Molecular Weight (g/mol): 157.172 MDL Number: MFCD02183555 InChI Key: BJAJKVZABJZXDC-UHFFFAOYSA-N Synonym: 1-benzofuran-3-ylacetonitrile,3-benzo b furylacetonitrile,benzofuran-3-acetonitrile,2-benzofuran-3-yl acetonitrile,benzo b furan-3-acetonitrile,2-3-benzofuranyl acetonitrile,2-1-benzofuran-3-yl acetonitrile,2-benzo b furan-3-ylethanenitrile,pubchem7006,3-benzofuranylacetonitrile PubChem CID: 2769401 IUPAC Name: 2-(1-benzofuran-3-yl)acetonitrile SMILES: C1=CC=C2C(=C1)C(=CO2)CC#N

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Specifications

PubChem CID	2769401
CAS	52407-43-9
Molecular Weight (g/mol)	157.172
MDL Number	MFCD02183555
SMILES	C1=CC=C2C(=C1)C(=CO2)CC#N
Synonym	1-benzofuran-3-ylacetonitrile,3-benzo b furylacetonitrile,benzofuran-3-acetonitrile,2-benzofuran-3-yl acetonitrile,benzo b furan-3-acetonitrile,2-3-benzofuranyl acetonitrile,2-1-benzofuran-3-yl acetonitrile,2-benzo b furan-3-ylethanenitrile,pubchem7006,3-benzofuranylacetonitrile
IUPAC Name	2-(1-benzofuran-3-yl)acetonitrile
InChI Key	BJAJKVZABJZXDC-UHFFFAOYSA-N
Molecular Formula	C10H7NO

Thermo Scientific Chemicals alpha-Naphthoflavone, 97%

CAS: 604-59-1 Molecular Formula: C₁₉H₁₂O₂ Molecular Weight (g/mol): 272.29 MDL Number: MFCD00004985 InChI Key: VFMMPHCGEFXGIP-UHFFFAOYSA-N Synonym: alpha-naphthoflavone,7,8-benzoflavone,2-phenyl-4h-benzo h chromen-4-one,alpha-naphthylflavone,2-phenylbenzo h chromen-4-one,benzo h flavone,4h-naphtho 1,2-b pyran-4-one, 2-phenyl,.alpha.-naphthoflavone,2-phenyl-benzo h chromen-4-one,2-phenyl-4h-naphtho 1,2-b pyran-4-one PubChem CID: 11790 ChEBI: CHEBI:76995 IUPAC Name: 2-phenylbenzo[h]chromen-4-one SMILES: C1=CC=C(C=C1)C2=CC(=O)C3=C(O2)C4=CC=CC=C4C=C3

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Specifications

PubChem CID	11790
CAS	604-59-1
Molecular Weight (g/mol)	272.29
ChEBI	CHEBI:76995
MDL Number	MFCD00004985
SMILES	C1=CC=C(C=C1)C2=CC(=O)C3=C(O2)C4=CC=CC=C4C=C3
Synonym	alpha-naphthoflavone,7,8-benzoflavone,2-phenyl-4h-benzo h chromen-4-one,alpha-naphthylflavone,2-phenylbenzo h chromen-4-one,benzo h flavone,4h-naphtho 1,2-b pyran-4-one, 2-phenyl,.alpha.-naphthoflavone,2-phenyl-benzo h chromen-4-one,2-phenyl-4h-naphtho 1,2-b pyran-4-one
IUPAC Name	2-phenylbenzo[h]chromen-4-one
InChI Key	VFMMPHCGEFXGIP-UHFFFAOYSA-N
Molecular Formula	C₁₉H₁₂O₂

Thermo Scientific Chemicals beta-Naphthoflavone, 99+%

CAS: 6051-87-2 Molecular Formula: C₁₉H₁₂O₂ Molecular Weight (g/mol): 272.29 MDL Number: MFCD00004986 InChI Key: OUGIDAPQYNCXRA-UHFFFAOYSA-N Synonym: beta-naphthoflavone,5,6-benzoflavone,beta-nf,3-phenyl-1h-naphtho 2,1-b pyran-1-one,3-phenyl-1h-benzo f chromen-1-one,1h-naphtho 2,1-b pyran-1-one, 3-phenyl,unii-1bt0256y8o,3-phenylbenzo f chromen-1-one,ccris 3262,.beta.-naphthoflavone PubChem CID: 2361 ChEBI: CHEBI:77013 IUPAC Name: 3-phenylbenzo[f]chromen-1-one SMILES: C1=CC=C(C=C1)C2=CC(=O)C3=C(O2)C=CC4=CC=CC=C43

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Specifications

PubChem CID	2361
CAS	6051-87-2
Molecular Weight (g/mol)	272.29
ChEBI	CHEBI:77013
MDL Number	MFCD00004986
SMILES	C1=CC=C(C=C1)C2=CC(=O)C3=C(O2)C=CC4=CC=CC=C43
Synonym	beta-naphthoflavone,5,6-benzoflavone,beta-nf,3-phenyl-1h-naphtho 2,1-b pyran-1-one,3-phenyl-1h-benzo f chromen-1-one,1h-naphtho 2,1-b pyran-1-one, 3-phenyl,unii-1bt0256y8o,3-phenylbenzo f chromen-1-one,ccris 3262,.beta.-naphthoflavone
IUPAC Name	3-phenylbenzo[f]chromen-1-one
InChI Key	OUGIDAPQYNCXRA-UHFFFAOYSA-N
Molecular Formula	C₁₉H₁₂O₂

Thermo Scientific Chemicals 5-Chloro-2-pentanone ethylene ketal, 97%

CAS: 5978-08-5 Molecular Formula: C₇H₁₃ClO₂ Molecular Weight (g/mol): 164.63 MDL Number: MFCD00003217 InChI Key: OFERIRWCHSOJJT-UHFFFAOYSA-N

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Specifications

CAS	5978-08-5
Molecular Weight (g/mol)	164.63
MDL Number	MFCD00003217
InChI Key	OFERIRWCHSOJJT-UHFFFAOYSA-N
Molecular Formula	C₇H₁₃ClO₂

Thermo Scientific Chemicals Flavone, 99%

CAS: 525-82-6 Molecular Formula: C15H10O2 Molecular Weight (g/mol): 222.243 MDL Number: MFCD00006825 InChI Key: VHBFFQKBGNRLFZ-UHFFFAOYSA-N Synonym: flavone,2-phenylchromone,2-phenyl-4h-chromen-4-one,2-phenyl-4-chromone,2-phenyl-4-benzopyron,2-phenyl-4h-1-benzopyran-4-one,4h-1-benzopyran-4-one, 2-phenyl,asmacoril,chromocor,cromaril PubChem CID: 10680 ChEBI: CHEBI:42491 IUPAC Name: 2-phenylchromen-4-one SMILES: C1=CC=C(C=C1)C2=CC(=O)C3=CC=CC=C3O2

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Specifications

PubChem CID	10680
CAS	525-82-6
Molecular Weight (g/mol)	222.243
ChEBI	CHEBI:42491
MDL Number	MFCD00006825
SMILES	C1=CC=C(C=C1)C2=CC(=O)C3=CC=CC=C3O2
Synonym	flavone,2-phenylchromone,2-phenyl-4h-chromen-4-one,2-phenyl-4-chromone,2-phenyl-4-benzopyron,2-phenyl-4h-1-benzopyran-4-one,4h-1-benzopyran-4-one, 2-phenyl,asmacoril,chromocor,cromaril
IUPAC Name	2-phenylchromen-4-one
InChI Key	VHBFFQKBGNRLFZ-UHFFFAOYSA-N
Molecular Formula	C15H10O2

Thermo Scientific Chemicals Benzo[b]furan, 97+%

CAS: 271-89-6 Molecular Formula: C8H6O Molecular Weight (g/mol): 118.14 MDL Number: MFCD00005847 InChI Key: IANQTJSKSUMEQM-UHFFFAOYSA-N Synonym: benzofuran,2,3-benzofuran,coumarone,benzo b furan,cumarone,benzofurfuran,1-oxindene,coumaron,1-oxidene PubChem CID: 9223 ChEBI: CHEBI:35260 IUPAC Name: 1-benzofuran SMILES: O1C=CC2=CC=CC=C12

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Specifications

PubChem CID	9223
CAS	271-89-6
Molecular Weight (g/mol)	118.14
ChEBI	CHEBI:35260
MDL Number	MFCD00005847
SMILES	O1C=CC2=CC=CC=C12
Synonym	benzofuran,2,3-benzofuran,coumarone,benzo b furan,cumarone,benzofurfuran,1-oxindene,coumaron,1-oxidene
IUPAC Name	1-benzofuran
InChI Key	IANQTJSKSUMEQM-UHFFFAOYSA-N
Molecular Formula	C8H6O

Oxacyclic compounds

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Maleic Anhydride 99.0+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Maleic Anhydride 99.0+%, TCI America™