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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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Keyword Search:
1 – 15 of 169 results
1

Maleic anhydride, briquettes

CAS: 108-31-6 Molecular Formula: C4H2O3 Molecular Weight (g/mol): 98.06 MDL Number: MFCD00005518 InChI Key: FPYJFEHAWHCUMM-UHFFFAOYSA-N IUPAC Name: 2,5-dihydrofuran-2,5-dione SMILES: O=C1OC(=O)C=C1

CAS 108-31-6
Molecular Weight (g/mol) 98.06
MDL Number MFCD00005518
SMILES O=C1OC(=O)C=C1
IUPAC Name 2,5-dihydrofuran-2,5-dione
InChI Key FPYJFEHAWHCUMM-UHFFFAOYSA-N
Molecular Formula C4H2O3
2

1-Benzofuran-5-carboxylic acid, Thermo Scientific™

CAS: 90721-27-0 Molecular Formula: C9H6O3 Molecular Weight (g/mol): 162.14 MDL Number: MFCD01006742 InChI Key: GTWXSZIQNTUNKR-UHFFFAOYSA-N Synonym: benzofuran-5-carboxylic acid,5-benzofurancarboxylic acid,benzo b furan-5-carboxylic acid,1-benzofunan-5-carboxylic acid,benzofurane-5-carboxylic acid,4ctj,pubchem7018,5-benzofuran carboxylic,rarechem al be 1369,5-benzofurancarboxylicacid PubChem CID: 595656 IUPAC Name: 1-benzofuran-5-carboxylic acid SMILES: OC(=O)C1=CC=C2OC=CC2=C1

PubChem CID 595656
CAS 90721-27-0
Molecular Weight (g/mol) 162.14
MDL Number MFCD01006742
SMILES OC(=O)C1=CC=C2OC=CC2=C1
Synonym benzofuran-5-carboxylic acid,5-benzofurancarboxylic acid,benzo b furan-5-carboxylic acid,1-benzofunan-5-carboxylic acid,benzofurane-5-carboxylic acid,4ctj,pubchem7018,5-benzofuran carboxylic,rarechem al be 1369,5-benzofurancarboxylicacid
IUPAC Name 1-benzofuran-5-carboxylic acid
InChI Key GTWXSZIQNTUNKR-UHFFFAOYSA-N
Molecular Formula C9H6O3
3

3-Methylflavone-8-Carboxylic Acid, British Pharmacopoeia (BP) Reference Standard, MilliporeSigma™ Supelco™

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, has been developed and issued under the Authority of the issuing Pharmacopoeia.

4

Xanthydrol for the Detection of Urea, ≥99.0% (HPLC), MilliporeSigma™ Supelco™

MDL Number: MFCD00005057 Synonym: 9-Hydroxyxanthene; 9-Xanthenol

MDL Number MFCD00005057
Synonym 9-Hydroxyxanthene; 9-Xanthenol
5

4-Oxo-4H-1-benzopyran-2-carboxylic acid, 97%

CAS: 4940-39-0 Molecular Formula: C10H6O4 Molecular Weight (g/mol): 190.15 MDL Number: MFCD00006838 InChI Key: RVMGXWBCQGAWBR-UHFFFAOYSA-N Synonym: chromocarb,chromone-2-carboxylic acid,4-oxo-4h-chromene-2-carboxylic acid,4-oxo-4h-1-benzopyran-2-carboxylic acid,atremon,chromonecarboxylic acid,lp-1,chromocarb inn:dcf,2-chromonecarboxylic acid,chromocarbe inn-french PubChem CID: 2741 IUPAC Name: 4-oxochromene-2-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O

PubChem CID 2741
CAS 4940-39-0
Molecular Weight (g/mol) 190.15
MDL Number MFCD00006838
SMILES C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O
Synonym chromocarb,chromone-2-carboxylic acid,4-oxo-4h-chromene-2-carboxylic acid,4-oxo-4h-1-benzopyran-2-carboxylic acid,atremon,chromonecarboxylic acid,lp-1,chromocarb inn:dcf,2-chromonecarboxylic acid,chromocarbe inn-french
IUPAC Name 4-oxochromene-2-carboxylic acid
InChI Key RVMGXWBCQGAWBR-UHFFFAOYSA-N
Molecular Formula C10H6O4
6

2,3-Benzofuran, 99%

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

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
7

Maleic anhydride, 99%, pastilles

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 SMILES: O=C1OC(=O)C=C1

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
8

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

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
9

Chloroxazone, 98%

CAS: 95-25-0 Molecular Formula: C7H4ClNO2 Molecular Weight (g/mol): 169.57 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

PubChem CID 2733
CAS 95-25-0
Molecular Weight (g/mol) 169.57
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
10

4,5',8-Trimethylpsoralen, 97.5%

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-trimethylfuro[3,2-g]chromen-7-one SMILES: CC1=CC2=CC3=C(OC(=O)C=C3C)C(C)=C2O1

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-trimethylfuro[3,2-g]chromen-7-one
InChI Key FMHHVULEAZTJMA-UHFFFAOYSA-N
Molecular Formula C14H12O3
11

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

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
12

9-Hydroxyxanthene, 97+%

CAS: 90-46-0 Molecular Formula: C13H10O2 Molecular Weight (g/mol): 198.22 MDL Number: MFCD00005057 InChI Key: JFRMYMMIJXLMBB-UHFFFAOYSA-N Synonym: 9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol PubChem CID: 72861 IUPAC Name: 9H-xanthen-9-ol SMILES: C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O

PubChem CID 72861
CAS 90-46-0
Molecular Weight (g/mol) 198.22
MDL Number MFCD00005057
SMILES C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O
Synonym 9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol
IUPAC Name 9H-xanthen-9-ol
InChI Key JFRMYMMIJXLMBB-UHFFFAOYSA-N
Molecular Formula C13H10O2
13

4,5-Dichlorophthalic anhydride, 98%

CAS: 942-06-3 Molecular Formula: C8H2Cl2O3 Molecular Weight (g/mol): 217.00 MDL Number: MFCD00075034 InChI Key: ULSOWUBMELTORB-UHFFFAOYSA-N Synonym: 4,5-dichlorophthalic anhydride,5,6-dichloroisobenzofuran-1,3-dione,4,5-dichlorophthalicanhydride,1,3-isobenzofurandione, 5,6-dichloro,5,6-dichloro-1,3-dihydro-2-benzofuran-1,3-dione,5,6-dichloro-1,3-dihydroisobenzofuran-1,3-dione,5,6-dichlor-2-benzofuran-1,3-dion,pubchem16761,acmc-209rqk,4,5-dichlorophalic anhydride PubChem CID: 70334 IUPAC Name: 5,6-dichloro-2-benzofuran-1,3-dione SMILES: ClC1=CC2=C(C=C1Cl)C(=O)OC2=O

PubChem CID 70334
CAS 942-06-3
Molecular Weight (g/mol) 217.00
MDL Number MFCD00075034
SMILES ClC1=CC2=C(C=C1Cl)C(=O)OC2=O
Synonym 4,5-dichlorophthalic anhydride,5,6-dichloroisobenzofuran-1,3-dione,4,5-dichlorophthalicanhydride,1,3-isobenzofurandione, 5,6-dichloro,5,6-dichloro-1,3-dihydro-2-benzofuran-1,3-dione,5,6-dichloro-1,3-dihydroisobenzofuran-1,3-dione,5,6-dichlor-2-benzofuran-1,3-dion,pubchem16761,acmc-209rqk,4,5-dichlorophalic anhydride
IUPAC Name 5,6-dichloro-2-benzofuran-1,3-dione
InChI Key ULSOWUBMELTORB-UHFFFAOYSA-N
Molecular Formula C8H2Cl2O3
14

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

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
15

6-Chloro-1,3-benzoxazol-2(3H)-one, 98+%, Thermo Scientific™

CAS: 19932-84-4 Molecular Formula: C7H4ClNO2 Molecular Weight (g/mol): 169.56 MDL Number: MFCD00463914 InChI Key: MATCZHXABVLZIE-UHFFFAOYSA-N Synonym: 6-chloro-2-benzoxazolinone,6-chlorobenzoxazolone,2 3h-benzoxazolone, 6-chloro,6-chloro-1,3-benzoxazol-2 3h-one,6-chlorobenzo d oxazol-2 3h-one,6-chlorobenzoxazolinone,6-chloro-2-benzoxazolone,6-chloro-1,3-benzoxazol-2-ol,2-benzoxazolinone, 6-chloro,6-chloro-2,3-dihydrobenzoxazol-2-one PubChem CID: 29858 IUPAC Name: 6-chloro-3H-1,3-benzoxazol-2-one SMILES: ClC1=CC=C2NC(=O)OC2=C1

PubChem CID 29858
CAS 19932-84-4
Molecular Weight (g/mol) 169.56
MDL Number MFCD00463914
SMILES ClC1=CC=C2NC(=O)OC2=C1
Synonym 6-chloro-2-benzoxazolinone,6-chlorobenzoxazolone,2 3h-benzoxazolone, 6-chloro,6-chloro-1,3-benzoxazol-2 3h-one,6-chlorobenzo d oxazol-2 3h-one,6-chlorobenzoxazolinone,6-chloro-2-benzoxazolone,6-chloro-1,3-benzoxazol-2-ol,2-benzoxazolinone, 6-chloro,6-chloro-2,3-dihydrobenzoxazol-2-one
IUPAC Name 6-chloro-3H-1,3-benzoxazol-2-one
InChI Key MATCZHXABVLZIE-UHFFFAOYSA-N
Molecular Formula C7H4ClNO2