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 340 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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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	2,5-dihydrofuran-2,5-dione
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

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

Phthalic anhydride, ACS reagent

CAS: 85-44-9 Molecular Formula: C8H4O3 Molecular Weight (g/mol): 148.12 MDL Number: MFCD00005918 InChI Key: LGRFSURHDFAFJT-UHFFFAOYSA-N Synonym: phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen PubChem CID: 6811 ChEBI: CHEBI:36605 SMILES: O=C1OC(=O)C2=CC=CC=C12

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Specifications

PubChem CID	6811
CAS	85-44-9
Molecular Weight (g/mol)	148.12
ChEBI	CHEBI:36605
MDL Number	MFCD00005918
SMILES	O=C1OC(=O)C2=CC=CC=C12
Synonym	phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen
InChI Key	LGRFSURHDFAFJT-UHFFFAOYSA-N
Molecular Formula	C8H4O3

Phthalic Anhydride, 99%

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Specifications

PubChem CID	6811
CAS	85-44-9
Molecular Weight (g/mol)	148.12
ChEBI	CHEBI:36605
MDL Number	MFCD00005918
SMILES	O=C1OC(=O)C2=CC=CC=C12
Synonym	phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen
InChI Key	LGRFSURHDFAFJT-UHFFFAOYSA-N
Molecular Formula	C8H4O3

3,4-Dihydro-2H-pyran, 99%

CAS: 110-87-2 Molecular Formula: C5H8O Molecular Weight (g/mol): 84.118 MDL Number: MFCD00006558 InChI Key: BUDQDWGNQVEFAC-UHFFFAOYSA-N Synonym: dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane PubChem CID: 8080 IUPAC Name: 3,4-dihydro-2H-pyran SMILES: C1CC=COC1

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Specifications

PubChem CID	8080
CAS	110-87-2
Molecular Weight (g/mol)	84.118
MDL Number	MFCD00006558
SMILES	C1CC=COC1
Synonym	dihydropyran,3,4-dihydropyran,2,3-dihydropyran,2h-3,4-dihydropyran,2,3-dihydro-4h-pyran,dihydro-2h-pyran,2h-pyran, dihydro,2h-pyran, 3,4-dihydro,5,6-dihydro-4h-pyran,dihydropyrane
IUPAC Name	3,4-dihydro-2H-pyran
InChI Key	BUDQDWGNQVEFAC-UHFFFAOYSA-N
Molecular Formula	C5H8O

Maleic anhydride, 99%, pastilles

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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
InChI Key	FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula	C4H2O3

Phthalide, 99%

CAS: 87-41-2 MDL Number: MFCD00005906 InChI Key: WNZQDUSMALZDQF-UHFFFAOYSA-N Synonym: phthalide,isobenzofuran-1 3h-one,1 3h-isobenzofuranone,1-phthalanone,phthalolactone,2-benzofuran-1 3h-one,isobenzofuranone,phthalanone,3h-isobenzofuran-1-one,2-hydroxymethylbenzoic acid, gamma-lactone PubChem CID: 6885 ChEBI: CHEBI:38085 IUPAC Name: 3H-2-benzofuran-1-one SMILES: C1C2=CC=CC=C2C(=O)O1

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Specifications

PubChem CID	6885
CAS	87-41-2
ChEBI	CHEBI:38085
MDL Number	MFCD00005906
SMILES	C1C2=CC=CC=C2C(=O)O1
Synonym	phthalide,isobenzofuran-1 3h-one,1 3h-isobenzofuranone,1-phthalanone,phthalolactone,2-benzofuran-1 3h-one,isobenzofuranone,phthalanone,3h-isobenzofuran-1-one,2-hydroxymethylbenzoic acid, gamma-lactone
IUPAC Name	3H-2-benzofuran-1-one
InChI Key	WNZQDUSMALZDQF-UHFFFAOYSA-N

Phthalic anhydride, ACS, 99.0-100.2%

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Specifications

PubChem CID	6811
CAS	85-44-9
Molecular Weight (g/mol)	148.12
ChEBI	CHEBI:36605
MDL Number	MFCD00005918
SMILES	O=C1OC(=O)C2=CC=CC=C12
Synonym	phthalic anhydride,isobenzofuran-1,3-dione,1,3-isobenzofurandione,1,3-dioxophthalan,1,3-phthalandione,phthalsaeureanhydrid,phthalic acid anhydride,o-phthalic acid anhydride,phthalandione,retarder esen
IUPAC Name	2-benzofuran-1,3-dione
InChI Key	LGRFSURHDFAFJT-UHFFFAOYSA-N
Molecular Formula	C8H4O3

Oxazole, 98+%

CAS: 288-42-6 Molecular Formula: C3H3NO Molecular Weight (g/mol): 69.063 MDL Number: MFCD00009751 InChI Key: ZCQWOFVYLHDMMC-UHFFFAOYSA-N Synonym: oxazole,unii-fjz20i1lps,fjz20i1lps,oxazol,1,3-oxazol,pubchem8626,oxazole 1g PubChem CID: 9255 ChEBI: CHEBI:35597 IUPAC Name: 1,3-oxazole SMILES: C1=COC=N1

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Specifications

PubChem CID	9255
CAS	288-42-6
Molecular Weight (g/mol)	69.063
ChEBI	CHEBI:35597
MDL Number	MFCD00009751
SMILES	C1=COC=N1
Synonym	oxazole,unii-fjz20i1lps,fjz20i1lps,oxazol,1,3-oxazol,pubchem8626,oxazole 1g
IUPAC Name	1,3-oxazole
InChI Key	ZCQWOFVYLHDMMC-UHFFFAOYSA-N
Molecular Formula	C3H3NO

Homophthalic anhydride, 98%

CAS: 703-59-3 Molecular Formula: C₉H₆O₃ Molecular Weight (g/mol): 162.14 MDL Number: MFCD00006894 InChI Key: AKHSBAVQPIRVAG-UHFFFAOYSA-N Synonym: homophthalic anhydride,1,3-isochromandione,isochroman-1,3-dione,1h-2-benzopyran-1,3 4h-dione,homophthalic acid anhydride,4h-2-benzopyran-1,3-dione,1h-isochromene-1,3 4h-dione,3,4-dihydro-1h-2-benzopyran-1,3-dione,4h-benzo c pyran-1,3-dione,homophthalic anhydride 2-carboxyphenylacetic anhydride PubChem CID: 12801 IUPAC Name: 4H-isochromene-1,3-dione SMILES: C1C2=CC=CC=C2C(=O)OC1=O

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Specifications

PubChem CID	12801
CAS	703-59-3
Molecular Weight (g/mol)	162.14
MDL Number	MFCD00006894
SMILES	C1C2=CC=CC=C2C(=O)OC1=O
Synonym	homophthalic anhydride,1,3-isochromandione,isochroman-1,3-dione,1h-2-benzopyran-1,3 4h-dione,homophthalic acid anhydride,4h-2-benzopyran-1,3-dione,1h-isochromene-1,3 4h-dione,3,4-dihydro-1h-2-benzopyran-1,3-dione,4h-benzo c pyran-1,3-dione,homophthalic anhydride 2-carboxyphenylacetic anhydride
IUPAC Name	4H-isochromene-1,3-dione
InChI Key	AKHSBAVQPIRVAG-UHFFFAOYSA-N
Molecular Formula	C₉H₆O₃

2-Aminooxazole, 97%

CAS: 4570-45-0 Molecular Formula: C3H4N2O Molecular Weight (g/mol): 84.08 MDL Number: MFCD07364485 InChI Key: ACTKAGSPIFDCMF-UHFFFAOYSA-N Synonym: oxazol-2-amine,2-aminooxazole,oxazole-2-amine,2-amino-oxazole,2-oxazolamine,2-amino-1,3-oxazole,oxazol-2-ylamine,2-aminoxazole,1,3-oxazol-2-ylamine,1,3-oxazole-2-ylamine PubChem CID: 558521 IUPAC Name: 1,3-oxazol-2-amine SMILES: NC1=NC=CO1

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Specifications

PubChem CID	558521
CAS	4570-45-0
Molecular Weight (g/mol)	84.08
MDL Number	MFCD07364485
SMILES	NC1=NC=CO1
Synonym	oxazol-2-amine,2-aminooxazole,oxazole-2-amine,2-amino-oxazole,2-oxazolamine,2-amino-1,3-oxazole,oxazol-2-ylamine,2-aminoxazole,1,3-oxazol-2-ylamine,1,3-oxazole-2-ylamine
IUPAC Name	1,3-oxazol-2-amine
InChI Key	ACTKAGSPIFDCMF-UHFFFAOYSA-N
Molecular Formula	C3H4N2O

Xanthene 98.0+%, TCI America™

CAS: 92-83-1 Molecular Formula: C13H10O Molecular Weight (g/mol): 182.222 MDL Number: MFCD00005055 InChI Key: GJCOSYZMQJWQCA-UHFFFAOYSA-N Synonym: xanthene,xanthan,10h-9-oxaanthracene,dibenzo a,e pyran,dibenzopyran, tricyclic,9h-xanthen,xanthane,9h-xanthen-9-yl,acmc-209rhu PubChem CID: 7107 ChEBI: CHEBI:10057 IUPAC Name: 9H-xanthene SMILES: C1C2=CC=CC=C2OC3=CC=CC=C31

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Specifications

PubChem CID	7107
CAS	92-83-1
Molecular Weight (g/mol)	182.222
ChEBI	CHEBI:10057
MDL Number	MFCD00005055
SMILES	C1C2=CC=CC=C2OC3=CC=CC=C31
Synonym	xanthene,xanthan,10h-9-oxaanthracene,dibenzo a,e pyran,dibenzopyran, tricyclic,9h-xanthen,xanthane,9h-xanthen-9-yl,acmc-209rhu
IUPAC Name	9H-xanthene
InChI Key	GJCOSYZMQJWQCA-UHFFFAOYSA-N
Molecular Formula	C13H10O

1-benzofuran-5-amine, 97%, Thermo Scientific™

CAS: 58546-89-7 Molecular Formula: C8H7NO Molecular Weight (g/mol): 133.15 InChI Key: GMOLCSICTCPZCU-UHFFFAOYSA-N Synonym: benzofuran-5-amine,5-benzofuranamine,5-aminobenzo b furan,5-aminobenzofuran,benzo b furan-5-amine,benzo b furan-5-ylamine,benzofuran-5-ylamine PubChem CID: 1477152 IUPAC Name: 1-benzofuran-5-amine SMILES: C1=CC2=C(C=CO2)C=C1N

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Specifications

PubChem CID	1477152
CAS	58546-89-7
Molecular Weight (g/mol)	133.15
SMILES	C1=CC2=C(C=CO2)C=C1N
Synonym	benzofuran-5-amine,5-benzofuranamine,5-aminobenzo b furan,5-aminobenzofuran,benzo b furan-5-amine,benzo b furan-5-ylamine,benzofuran-5-ylamine
IUPAC Name	1-benzofuran-5-amine
InChI Key	GMOLCSICTCPZCU-UHFFFAOYSA-N
Molecular Formula	C8H7NO

5-(5-Methyl-2-furyl)thieno[2,3-d]pyrimidin-4(3H)-one, 97%, Thermo Scientific Chemicals

CAS: 1421263-42-4 Molecular Formula: C11H8N2O2S Molecular Weight (g/mol): 232.257 MDL Number: MFCD22988976 InChI Key: PMVYUYYRYHAMLD-UHFFFAOYSA-N Synonym: 5-5-methyl-2-furyl thieno 2,3-d pyrimidin-4 3h-one,5-5-methylfuran-2-yl-3h-thieno 2,3-d pyrimidin-4-one PubChem CID: 97030364 IUPAC Name: 5-(5-methylfuran-2-yl)-3H-thieno[2,3-d]pyrimidin-4-one SMILES: CC1=CC=C(O1)C2=CSC3=C2C(=O)NC=N3

Pricing & Availability
Specifications

PubChem CID	97030364
CAS	1421263-42-4
Molecular Weight (g/mol)	232.257
MDL Number	MFCD22988976
SMILES	CC1=CC=C(O1)C2=CSC3=C2C(=O)NC=N3
Synonym	5-5-methyl-2-furyl thieno 2,3-d pyrimidin-4 3h-one,5-5-methylfuran-2-yl-3h-thieno 2,3-d pyrimidin-4-one
IUPAC Name	5-(5-methylfuran-2-yl)-3H-thieno[2,3-d]pyrimidin-4-one
InChI Key	PMVYUYYRYHAMLD-UHFFFAOYSA-N
Molecular Formula	C11H8N2O2S

Ethyl 1-benzofuran-3-ylacetate, ≥97%, Thermo Scientific™

CAS: 82156-58-9 Molecular Formula: C12H12O3 Molecular Weight (g/mol): 204.23 MDL Number: MFCD08060514 InChI Key: LSGDCGDXQLDKGO-UHFFFAOYSA-N Synonym: ethyl 2-benzofuran-3-yl acetate,ethyl 1-benzofuran-3-ylacetate,ethyl 2-1-benzofuran-3-yl acetate,ethyl benzo b furan-3-acetate,ethyl2-benzofuran-3-yl acetate,ethyl-1-benzofuran-3-yl acetate,ethyl 2-benzo b furan-3-ylacetate,3-benzofuranaceticacid, ethyl ester,3-benzofuranacetic acid, ethyl ester,benzofuran-3-acetic acid ethyl ester PubChem CID: 7537531 IUPAC Name: ethyl 2-(1-benzofuran-3-yl)acetate SMILES: CCOC(=O)CC1=COC2=CC=CC=C12

Pricing & Availability
Specifications

PubChem CID	7537531
CAS	82156-58-9
Molecular Weight (g/mol)	204.23
MDL Number	MFCD08060514
SMILES	CCOC(=O)CC1=COC2=CC=CC=C12
Synonym	ethyl 2-benzofuran-3-yl acetate,ethyl 1-benzofuran-3-ylacetate,ethyl 2-1-benzofuran-3-yl acetate,ethyl benzo b furan-3-acetate,ethyl2-benzofuran-3-yl acetate,ethyl-1-benzofuran-3-yl acetate,ethyl 2-benzo b furan-3-ylacetate,3-benzofuranaceticacid, ethyl ester,3-benzofuranacetic acid, ethyl ester,benzofuran-3-acetic acid ethyl ester
IUPAC Name	ethyl 2-(1-benzofuran-3-yl)acetate
InChI Key	LSGDCGDXQLDKGO-UHFFFAOYSA-N
Molecular Formula	C12H12O3

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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

Xanthene 98.0+%, 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™

Xanthene 98.0+%, TCI America™