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 343 results

Thermo Scientific Chemicals Maleic anhydride, 98+%

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

Thermo Scientific Chemicals Phthalic Anhydride, 99%

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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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

Thermo Scientific Chemicals Phthalic anhydride, ACS reagent

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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

Thermo Scientific Chemicals 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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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

Thermo Scientific Chemicals 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

Thermo Scientific Chemicals 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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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

Thermo Scientific Chemicals 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

Thermo Scientific Chemicals 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

Thermo Scientific Chemicals Dibenzofuran, 98%

CAS: 132-64-9 Molecular Formula: C12H8O Molecular Weight (g/mol): 168.195 MDL Number: MFCD00004968 InChI Key: TXCDCPKCNAJMEE-UHFFFAOYSA-N Synonym: dibenzo b,d furan,diphenylene oxide,2,2'-biphenylene oxide,2,2'-biphenylylene oxide,dibenzofurans,dibenzol b,d furan,dibenzofurane,1,1'-biphenyl-2,2'-diyl oxide PubChem CID: 568 ChEBI: CHEBI:28145 IUPAC Name: dibenzofuran SMILES: C1=CC=C2C(=C1)C3=CC=CC=C3O2

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PubChem CID	568
CAS	132-64-9
Molecular Weight (g/mol)	168.195
ChEBI	CHEBI:28145
MDL Number	MFCD00004968
SMILES	C1=CC=C2C(=C1)C3=CC=CC=C3O2
Synonym	dibenzo b,d furan,diphenylene oxide,2,2'-biphenylene oxide,2,2'-biphenylylene oxide,dibenzofurans,dibenzol b,d furan,dibenzofurane,1,1'-biphenyl-2,2'-diyl oxide
IUPAC Name	dibenzofuran
InChI Key	TXCDCPKCNAJMEE-UHFFFAOYSA-N
Molecular Formula	C12H8O

Thermo Scientific Chemicals 4,5',8-Trimethylpsoralen, 99%

CAS: 3902-71-4 Molecular Formula: C14H12O3 Molecular Weight (g/mol): 228.25 MDL Number: MFCD00005010 InChI Key: FMHHVULEAZTJMA-UHFFFAOYSA-N Synonym: trioxsalen,trioxysalen,trisoralen,trimethylpsoralen,4,5',8-trimethylpsoralen,elder 8011,trioxisaleno,trioxysalene,trioxysalenum,2',4,8-trimethylpsoralen PubChem CID: 5585 ChEBI: CHEBI:28329 IUPAC Name: 2,5,9-trimethyl-7H-furo[3,2-g]chromen-7-one SMILES: CC1=CC2=CC3=C(OC(=O)C=C3C)C(C)=C2O1

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PubChem CID	5585
CAS	3902-71-4
Molecular Weight (g/mol)	228.25
ChEBI	CHEBI:28329
MDL Number	MFCD00005010
SMILES	CC1=CC2=CC3=C(OC(=O)C=C3C)C(C)=C2O1
Synonym	trioxsalen,trioxysalen,trisoralen,trimethylpsoralen,4,5',8-trimethylpsoralen,elder 8011,trioxisaleno,trioxysalene,trioxysalenum,2',4,8-trimethylpsoralen
IUPAC Name	2,5,9-trimethyl-7H-furo[3,2-g]chromen-7-one
InChI Key	FMHHVULEAZTJMA-UHFFFAOYSA-N
Molecular Formula	C14H12O3

Thermo Scientific Chemicals Homophthalic anhydride, 97+%

CAS: 703-59-3 Molecular Formula: C9H6O3 Molecular Weight (g/mol): 162.144 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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PubChem CID	12801
CAS	703-59-3
Molecular Weight (g/mol)	162.144
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

Thermo Scientific Chemicals 3,4-Dihydro-2H-pyran, 99%

CAS: 110-87-2 Molecular Formula: C₅H₈O Molecular Weight (g/mol): 84.12 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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PubChem CID	8080
CAS	110-87-2
Molecular Weight (g/mol)	84.12
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

Thermo Scientific Chemicals 16-Hexadecanolide, 97%

CAS: 109-29-5 Molecular Formula: C16H30O2 Molecular Weight (g/mol): 254.41 MDL Number: MFCD00039668 InChI Key: LOKPJYNMYCVCRM-UHFFFAOYSA-N Synonym: 16-hexadecanolide,hexadecanolide,cyclohexadecanolide,16-hexadecanolactone,1,16-hexadecanolide,dihydroambrettolide,juniperic acid lactone,1,16-hexadecanolactone,hexadecanolactone,16-hydroxyhexadecanoic acid lactone PubChem CID: 7984 SMILES: O=C1CCCCCCCCCCCCCCCO1

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PubChem CID	7984
CAS	109-29-5
Molecular Weight (g/mol)	254.41
MDL Number	MFCD00039668
SMILES	O=C1CCCCCCCCCCCCCCCO1
Synonym	16-hexadecanolide,hexadecanolide,cyclohexadecanolide,16-hexadecanolactone,1,16-hexadecanolide,dihydroambrettolide,juniperic acid lactone,1,16-hexadecanolactone,hexadecanolactone,16-hydroxyhexadecanoic acid lactone
InChI Key	LOKPJYNMYCVCRM-UHFFFAOYSA-N
Molecular Formula	C16H30O2

Thermo Scientific Chemicals 2,3-Dimethylmaleic anhydride, 97%

CAS: 766-39-2 Molecular Formula: C6H6O3 Molecular Weight (g/mol): 126.111 MDL Number: MFCD00005523 InChI Key: MFGALGYVFGDXIX-UHFFFAOYSA-N Synonym: 2,3-dimethylmaleic anhydride,dimethylmaleic anhydride,2,5-furandione, 3,4-dimethyl,pyrocinchonic anhydride,maleic anhydride, dimethyl,dimethylmaleic acid anhydride,2,3-dimethylmaleicanhydride,unii-6pp3n541qa,3,4-dimethyl-furan-2,5-dione,alpha,beta-dimethylmaleic anhydride PubChem CID: 13010 IUPAC Name: 3,4-dimethylfuran-2,5-dione SMILES: CC1=C(C(=O)OC1=O)C

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PubChem CID	13010
CAS	766-39-2
Molecular Weight (g/mol)	126.111
MDL Number	MFCD00005523
SMILES	CC1=C(C(=O)OC1=O)C
Synonym	2,3-dimethylmaleic anhydride,dimethylmaleic anhydride,2,5-furandione, 3,4-dimethyl,pyrocinchonic anhydride,maleic anhydride, dimethyl,dimethylmaleic acid anhydride,2,3-dimethylmaleicanhydride,unii-6pp3n541qa,3,4-dimethyl-furan-2,5-dione,alpha,beta-dimethylmaleic anhydride
IUPAC Name	3,4-dimethylfuran-2,5-dione
InChI Key	MFGALGYVFGDXIX-UHFFFAOYSA-N
Molecular Formula	C6H6O3

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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™