Oxacyclic compounds

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

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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

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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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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

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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

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2,3-Pyrazinedicarboxylic anhydride, 97%

CAS: 4744-50-7 Molecular Formula: C6H2N2O3 Molecular Weight (g/mol): 150.09 MDL Number: MFCD00179418 InChI Key: AWJWCTOOIBYHON-UHFFFAOYSA-N Synonym: furo 3,4-b pyrazine-5,7-dione,2,3-pyrazinedicarboxylic anhydride,2,3-pyrazinecarboxylic anhydride,pyrazine-2,3-dicarboxylic anhydride,5h,7h-furo 3,4-b pyrazine-5,7-dione,furano 3,4-b pyrazine-5,7-dione,pubchem17535,2,3-pyrazinedicarboxylic anhydride treated bsa PubChem CID: 78482 IUPAC Name: 5H,7H-furo[3,4-b]pyrazine-5,7-dione SMILES: O=C1OC(=O)C2=NC=CN=C12

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Specifications

PubChem CID	78482
CAS	4744-50-7
Molecular Weight (g/mol)	150.09
MDL Number	MFCD00179418
SMILES	O=C1OC(=O)C2=NC=CN=C12
Synonym	furo 3,4-b pyrazine-5,7-dione,2,3-pyrazinedicarboxylic anhydride,2,3-pyrazinecarboxylic anhydride,pyrazine-2,3-dicarboxylic anhydride,5h,7h-furo 3,4-b pyrazine-5,7-dione,furano 3,4-b pyrazine-5,7-dione,pubchem17535,2,3-pyrazinedicarboxylic anhydride treated bsa
IUPAC Name	5H,7H-furo[3,4-b]pyrazine-5,7-dione
InChI Key	AWJWCTOOIBYHON-UHFFFAOYSA-N
Molecular Formula	C6H2N2O3

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Phthalic anhydride, ACS reagent

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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

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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

Chlorzoxazone 98.0+%, TCI America™

CAS: 95-25-0 Molecular Formula: C7H4ClNO2 Molecular Weight (g/mol): 169.564 MDL Number: MFCD00005717 InChI Key: TZFWDZFKRBELIQ-UHFFFAOYSA-N Synonym: chlorzoxazone,chlorzoxazon,paraflex,chloroxazone,5-chloro-2-benzoxazolone,biomioran,escoflex,myoflexin,myoflexine,pathorysin PubChem CID: 2733 ChEBI: CHEBI:3655 IUPAC Name: 5-chloro-3H-1,3-benzoxazol-2-one SMILES: C1=CC2=C(C=C1Cl)NC(=O)O2

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Specifications

PubChem CID	2733
CAS	95-25-0
Molecular Weight (g/mol)	169.564
ChEBI	CHEBI:3655
MDL Number	MFCD00005717
SMILES	C1=CC2=C(C=C1Cl)NC(=O)O2
Synonym	chlorzoxazone,chlorzoxazon,paraflex,chloroxazone,5-chloro-2-benzoxazolone,biomioran,escoflex,myoflexin,myoflexine,pathorysin
IUPAC Name	5-chloro-3H-1,3-benzoxazol-2-one
InChI Key	TZFWDZFKRBELIQ-UHFFFAOYSA-N
Molecular Formula	C7H4ClNO2

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

Phthalic Anhydride 98.0+%, TCI America™

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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	1,3-dihydro-2-benzofuran-1,3-dione
InChI Key	LGRFSURHDFAFJT-UHFFFAOYSA-N
Molecular Formula	C8H4O3

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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

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

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(2-Oxo-3-benzoxazolyl)acetic acid, 97%

CAS: 13610-49-6 Molecular Formula: C9H7NO4 Molecular Weight (g/mol): 193.158 MDL Number: MFCD01547452 InChI Key: PHIUXGVYFVAGTC-UHFFFAOYSA-N Synonym: 2-oxo-1,3-benzoxazol-3 2h-yl acetic acid,2-oxo-benzooxazol-3-yl-acetic acid,2-2-oxobenzo d oxazol-3 2h-yl acetic acid,2 3h-benzoxazolone-3-yl acetic acid,2-oxo-1,3-benzoxazol-3-yl acetic acid,2-2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl acetic acid,2-2-oxo-3-hydrobenzoxazol-3-yl acetic acid,3 2h-benzoxazoleacetic acid,2-oxo,3-benzoxazolonyl acetic acid,tos-bb-0934 PubChem CID: 737119 IUPAC Name: 2-(2-oxo-1,3-benzoxazol-3-yl)acetic acid SMILES: C1=CC=C2C(=C1)N(C(=O)O2)CC(=O)O

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Specifications

PubChem CID	737119
CAS	13610-49-6
Molecular Weight (g/mol)	193.158
MDL Number	MFCD01547452
SMILES	C1=CC=C2C(=C1)N(C(=O)O2)CC(=O)O
Synonym	2-oxo-1,3-benzoxazol-3 2h-yl acetic acid,2-oxo-benzooxazol-3-yl-acetic acid,2-2-oxobenzo d oxazol-3 2h-yl acetic acid,2 3h-benzoxazolone-3-yl acetic acid,2-oxo-1,3-benzoxazol-3-yl acetic acid,2-2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl acetic acid,2-2-oxo-3-hydrobenzoxazol-3-yl acetic acid,3 2h-benzoxazoleacetic acid,2-oxo,3-benzoxazolonyl acetic acid,tos-bb-0934
IUPAC Name	2-(2-oxo-1,3-benzoxazol-3-yl)acetic acid
InChI Key	PHIUXGVYFVAGTC-UHFFFAOYSA-N
Molecular Formula	C9H7NO4

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Citraconic anhydride, 98%

CAS: 616-02-4 Molecular Formula: C₅H₄O₃ Molecular Weight (g/mol): 112.08 MDL Number: MFCD00005522 InChI Key: AYKYXWQEBUNJCN-UHFFFAOYSA-N Synonym: citraconic anhydride,2,5-furandione, 3-methyl,2-methylmaleic anhydride,methylmaleic anhydride,3-methylmaleic anhydride,citraconic acid anhydride,monomethylmaleic anhydride,maleic anhydride, methyl,2-methylmaleicanhydride,unii-105np7pmxx PubChem CID: 12012 IUPAC Name: 3-methylfuran-2,5-dione SMILES: CC1=CC(=O)OC1=O

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Specifications

PubChem CID	12012
CAS	616-02-4
Molecular Weight (g/mol)	112.08
MDL Number	MFCD00005522
SMILES	CC1=CC(=O)OC1=O
Synonym	citraconic anhydride,2,5-furandione, 3-methyl,2-methylmaleic anhydride,methylmaleic anhydride,3-methylmaleic anhydride,citraconic acid anhydride,monomethylmaleic anhydride,maleic anhydride, methyl,2-methylmaleicanhydride,unii-105np7pmxx
IUPAC Name	3-methylfuran-2,5-dione
InChI Key	AYKYXWQEBUNJCN-UHFFFAOYSA-N
Molecular Formula	C₅H₄O₃

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3-Methylphthalic anhydride, 96%

CAS: 4792-30-7 Molecular Formula: C9H6O3 Molecular Weight (g/mol): 162.14 MDL Number: MFCD00047316 InChI Key: TWWAWPHAOPTQEU-UHFFFAOYSA-N Synonym: 3-methylphthalic anhydride,4-methylisobenzofuran-1,3-dione,1,3-isobenzofurandione, 4-methyl,3-methyl phthalic anhydride,methylphthalic anhydride,phthalic anhydride, 3-methyl,2,3-toluenedicarboxylic anhydride,1,3-isobenzofurandione, methyl,4-methyl-1,3-dihydro-2-benzofuran-1,3-dione,acmc-1arrb PubChem CID: 98500 IUPAC Name: 4-methyl-2-benzofuran-1,3-dione SMILES: CC1=CC=CC2=C1C(=O)OC2=O

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Specifications

PubChem CID	98500
CAS	4792-30-7
Molecular Weight (g/mol)	162.14
MDL Number	MFCD00047316
SMILES	CC1=CC=CC2=C1C(=O)OC2=O
Synonym	3-methylphthalic anhydride,4-methylisobenzofuran-1,3-dione,1,3-isobenzofurandione, 4-methyl,3-methyl phthalic anhydride,methylphthalic anhydride,phthalic anhydride, 3-methyl,2,3-toluenedicarboxylic anhydride,1,3-isobenzofurandione, methyl,4-methyl-1,3-dihydro-2-benzofuran-1,3-dione,acmc-1arrb
IUPAC Name	4-methyl-2-benzofuran-1,3-dione
InChI Key	TWWAWPHAOPTQEU-UHFFFAOYSA-N
Molecular Formula	C9H6O3

2,3-O-Isopropylidene-D-glyceraldehyde, 50% w/w in dichloromethane

CAS: 15186-48-8 Molecular Formula: C6H10O3 Molecular Weight (g/mol): 130.143 MDL Number: MFCD00269682 InChI Key: YSGPYVWACGYQDJ-YFKPBYRVSA-N Synonym: r-+-2,2-dimethyl-1,3-dioxolane-4-carboxaldehyde,4r-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde,r-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde,r-+-glyceraldehyde acetonide,1,3-dioxolane-4-carboxaldehyde, 2,2-dimethyl-, r,acetone d-glyceraldehyde,+-2,2-dimethyl-1,3-dioxolane-4-carboxaldehyde,1,3-dioxolane-4-carboxaldehyde, 2,2-dimethyl-, 4r,4r-2,2-dimethyl-1,3-dioxolan-4-carbaldehyd,pubchem5767 PubChem CID: 259712 IUPAC Name: (4R)-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde SMILES: CC1(OCC(O1)C=O)C

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Specifications

PubChem CID	259712
CAS	15186-48-8
Molecular Weight (g/mol)	130.143
MDL Number	MFCD00269682
SMILES	CC1(OCC(O1)C=O)C
Synonym	r-+-2,2-dimethyl-1,3-dioxolane-4-carboxaldehyde,4r-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde,r-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde,r-+-glyceraldehyde acetonide,1,3-dioxolane-4-carboxaldehyde, 2,2-dimethyl-, r,acetone d-glyceraldehyde,+-2,2-dimethyl-1,3-dioxolane-4-carboxaldehyde,1,3-dioxolane-4-carboxaldehyde, 2,2-dimethyl-, 4r,4r-2,2-dimethyl-1,3-dioxolan-4-carbaldehyd,pubchem5767
IUPAC Name	(4R)-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde
InChI Key	YSGPYVWACGYQDJ-YFKPBYRVSA-N
Molecular Formula	C6H10O3

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