Benzenoider
Filtrerede søgeresultater
Anthrone, ACS
CAS: 90-44-8 Molekylær formel: C14H10O Molekylvægt (g/mol): 194.23 MDL nummer: MFCD00001187 InChI nøgle: RJGDLRCDCYRQOQ-UHFFFAOYSA-N Synonym: anthrone,9 10h-anthracenone,carbothrone,anthranone,9-oxoanthracene,9,10-dihydro-9-oxoanthracene,az-o,anthracen-9 10h-one,anthracene, 9,10-dihydro-9-oxo,unii-fp0fj7k744 PubChem CID: 7018 ChEBI: CHEBI:33835 IUPAC navn: 10H-anthracen-9-on SMIL: O=C1C2=CC=CC=C2CC2=CC=CC=C12
| MDL nummer | MFCD00001187 |
|---|---|
| PubChem CID | 7018 |
| Molekylvægt (g/mol) | 194.23 |
| CAS | 90-44-8 |
| ChEBI | CHEBI:33835 |
| Synonym | anthrone,9 10h-anthracenone,carbothrone,anthranone,9-oxoanthracene,9,10-dihydro-9-oxoanthracene,az-o,anthracen-9 10h-one,anthracene, 9,10-dihydro-9-oxo,unii-fp0fj7k744 |
| SMIL | O=C1C2=CC=CC=C2CC2=CC=CC=C12 |
| IUPAC navn | 10H-anthracen-9-on |
| InChI nøgle | RJGDLRCDCYRQOQ-UHFFFAOYSA-N |
| Molekylær formel | C14H10O |
4-Dimethylaminobenzaldehyde, ACS reagent
CAS: 100-10-7 Molekylær formel: C9H11NO Molekylvægt (g/mol): 149.19 MDL nummer: MFCD00003381 InChI nøgle: BGNGWHSBYQYVRX-UHFFFAOYSA-N Synonym: 4-dimethylamino benzaldehyde,p-dimethylaminobenzaldehyde,ehrlich's reagent,p-formyldimethylaniline,benzaldehyde, 4-dimethylamino,p-dimethylamino benzaldehyde,p-formyl-n,n-dimethylaniline,n,n-dimethyl-p-aminobenzaldehyde,p-n,n-dimethylamino benzaldehyde,4-dimethylaminobenzenecarbonal PubChem CID: 7479 IUPAC navn: 4-(dimethylamino)benzaldehyd SMIL: CN(C)C1=CC=C(C=O)C=C1
| MDL nummer | MFCD00003381 |
|---|---|
| PubChem CID | 7479 |
| Molekylvægt (g/mol) | 149.19 |
| CAS | 100-10-7 |
| Synonym | 4-dimethylamino benzaldehyde,p-dimethylaminobenzaldehyde,ehrlich's reagent,p-formyldimethylaniline,benzaldehyde, 4-dimethylamino,p-dimethylamino benzaldehyde,p-formyl-n,n-dimethylaniline,n,n-dimethyl-p-aminobenzaldehyde,p-n,n-dimethylamino benzaldehyde,4-dimethylaminobenzenecarbonal |
| SMIL | CN(C)C1=CC=C(C=O)C=C1 |
| IUPAC navn | 4-(dimethylamino)benzaldehyd |
| InChI nøgle | BGNGWHSBYQYVRX-UHFFFAOYSA-N |
| Molekylær formel | C9H11NO |
Benzoic acid, 99.6%, ACS reagent
CAS: 65-85-0 Molekylær formel: C7H6O2 Molekylvægt (g/mol): 122.12 InChI nøgle: WPYMKLBDIGXBTP-UHFFFAOYSA-N Synonym: benzenecarboxylic acid,dracylic acid,benzeneformic acid,carboxybenzene,phenylformic acid,benzenemethanoic acid,phenylcarboxylic acid,retardex,benzoesaeure gk,benzoesaeure gv PubChem CID: 243 ChEBI: CHEBI:30746 IUPAC navn: benzoesyre SMIL: C1=CC=C(C=C1)C(=O)O
| PubChem CID | 243 |
|---|---|
| Molekylvægt (g/mol) | 122.12 |
| CAS | 65-85-0 |
| ChEBI | CHEBI:30746 |
| Synonym | benzenecarboxylic acid,dracylic acid,benzeneformic acid,carboxybenzene,phenylformic acid,benzenemethanoic acid,phenylcarboxylic acid,retardex,benzoesaeure gk,benzoesaeure gv |
| SMIL | C1=CC=C(C=C1)C(=O)O |
| IUPAC navn | benzoesyre |
| InChI nøgle | WPYMKLBDIGXBTP-UHFFFAOYSA-N |
| Molekylær formel | C7H6O2 |
4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate, ACS reagent
CAS: 5808-22-0 Molekylær formel: C10H10Na2O10S2 Molekylvægt (g/mol): 400.28 MDL nummer: MFCD00150612 InChI nøgle: QUEAKWJKJBFNEG-UHFFFAOYSA-L Synonym: chromotropic acid sodium salt,4,5-dihydroxy-2,7-naphthalenedisulfonate,di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid,4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g PubChem CID: 124202444 IUPAC navn: 4,5-dihydroxynaphthalen-2,7-disulfonsyre;natrium;dihydrat SMIL: O.O.OC1=CC(=CC2=CC(=CC(O)=C12)S(=O)(=O)O[Na])S(=O)(=O)O[Na]
| MDL nummer | MFCD00150612 |
|---|---|
| PubChem CID | 124202444 |
| Molekylvægt (g/mol) | 400.28 |
| CAS | 5808-22-0 |
| Synonym | chromotropic acid sodium salt,4,5-dihydroxy-2,7-naphthalenedisulfonate,di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid,4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g |
| SMIL | O.O.OC1=CC(=CC2=CC(=CC(O)=C12)S(=O)(=O)O[Na])S(=O)(=O)O[Na] |
| IUPAC navn | 4,5-dihydroxynaphthalen-2,7-disulfonsyre;natrium;dihydrat |
| InChI nøgle | QUEAKWJKJBFNEG-UHFFFAOYSA-L |
| Molekylær formel | C10H10Na2O10S2 |
1,5-Diphenylcarbazide, ACS
CAS: 140-22-7 Molekylær formel: C13H14N4O Molekylvægt (g/mol): 242.282 MDL nummer: MFCD00003013 InChI nøgle: KSPIHGBHKVISFI-UHFFFAOYSA-N Synonym: 1,5-diphenylcarbazide,diphenylcarbazide,1,5-diphenylcarbohydrazide,carbonic dihydrazide, 2,2'-diphenyl,1,5-diphenylcarbonohydrazide,1,5-diphenylcabohydrazide,sym-diphenylcarbazide,n,n'-diphenylcarbazide,2,2'-diphenylcarbazide,carbohydrazide, 1,5-diphenyl PubChem CID: 8789 ChEBI: CHEBI:4641 IUPAC navn: 1,3-dianilinourinstof SMIL: C1=CC=C(C=C1)NNC(=O)NNC2=CC=CC=C2
| MDL nummer | MFCD00003013 |
|---|---|
| PubChem CID | 8789 |
| Molekylvægt (g/mol) | 242.282 |
| CAS | 140-22-7 |
| ChEBI | CHEBI:4641 |
| Synonym | 1,5-diphenylcarbazide,diphenylcarbazide,1,5-diphenylcarbohydrazide,carbonic dihydrazide, 2,2'-diphenyl,1,5-diphenylcarbonohydrazide,1,5-diphenylcabohydrazide,sym-diphenylcarbazide,n,n'-diphenylcarbazide,2,2'-diphenylcarbazide,carbohydrazide, 1,5-diphenyl |
| SMIL | C1=CC=C(C=C1)NNC(=O)NNC2=CC=CC=C2 |
| IUPAC navn | 1,3-dianilinourinstof |
| InChI nøgle | KSPIHGBHKVISFI-UHFFFAOYSA-N |
| Molekylær formel | C13H14N4O |
5-Sulfosalicylic acid dihydrate, ACS reagent
CAS: 5965-83-3 Molekylær formel: C9H14O6S Molekylvægt (g/mol): 250.27 MDL nummer: MFCD00007508,MFCD00149540 InChI nøgle: NFYHZVWMQHQKRU-UHFFFAOYSA-N Synonym: 2-hydroxy-5-sulfobenzoic acid dihydrate,5-sulfosalicylic acid dihydrate,sulfosalicylic acid dihydrate,benzoic acid, 2-hydroxy-5-sulfo-, dihydrate,unii-09ngq462s6,2-hydroxy-5-sulfobenzoic acid, hydrate, hydrate,5-sulfosalicylsyre,5-sulfosalicylsaeure,salicylic acid, 5-sulfo-, dihydrate,acmc-1aymd PubChem CID: 2723734 IUPAC navn: 2-hydroxy-5-sulfobenzoesyre;dihydrat SMIL: C.C.OC(=O)C1=CC(=CC=C1O)S(O)(=O)=O
| MDL nummer | MFCD00007508,MFCD00149540 |
|---|---|
| PubChem CID | 2723734 |
| Molekylvægt (g/mol) | 250.27 |
| CAS | 5965-83-3 |
| Synonym | 2-hydroxy-5-sulfobenzoic acid dihydrate,5-sulfosalicylic acid dihydrate,sulfosalicylic acid dihydrate,benzoic acid, 2-hydroxy-5-sulfo-, dihydrate,unii-09ngq462s6,2-hydroxy-5-sulfobenzoic acid, hydrate, hydrate,5-sulfosalicylsyre,5-sulfosalicylsaeure,salicylic acid, 5-sulfo-, dihydrate,acmc-1aymd |
| SMIL | C.C.OC(=O)C1=CC(=CC=C1O)S(O)(=O)=O |
| IUPAC navn | 2-hydroxy-5-sulfobenzoesyre;dihydrat |
| InChI nøgle | NFYHZVWMQHQKRU-UHFFFAOYSA-N |
| Molekylær formel | C9H14O6S |
4-Dimethylaminobenzaldehyde, ACS
CAS: 100-10-7 Molekylær formel: C9H11NO Molekylvægt (g/mol): 149.19 MDL nummer: MFCD00003381 InChI nøgle: BGNGWHSBYQYVRX-UHFFFAOYSA-N Synonym: 4-dimethylamino benzaldehyde,p-dimethylaminobenzaldehyde,ehrlich's reagent,p-formyldimethylaniline,benzaldehyde, 4-dimethylamino,p-dimethylamino benzaldehyde,p-formyl-n,n-dimethylaniline,n,n-dimethyl-p-aminobenzaldehyde,p-n,n-dimethylamino benzaldehyde,4-dimethylaminobenzenecarbonal PubChem CID: 7479 IUPAC navn: 4-(dimethylamino)benzaldehyd SMIL: CN(C)C1=CC=C(C=O)C=C1
| MDL nummer | MFCD00003381 |
|---|---|
| PubChem CID | 7479 |
| Molekylvægt (g/mol) | 149.19 |
| CAS | 100-10-7 |
| Synonym | 4-dimethylamino benzaldehyde,p-dimethylaminobenzaldehyde,ehrlich's reagent,p-formyldimethylaniline,benzaldehyde, 4-dimethylamino,p-dimethylamino benzaldehyde,p-formyl-n,n-dimethylaniline,n,n-dimethyl-p-aminobenzaldehyde,p-n,n-dimethylamino benzaldehyde,4-dimethylaminobenzenecarbonal |
| SMIL | CN(C)C1=CC=C(C=O)C=C1 |
| IUPAC navn | 4-(dimethylamino)benzaldehyd |
| InChI nøgle | BGNGWHSBYQYVRX-UHFFFAOYSA-N |
| Molekylær formel | C9H11NO |
Anthrone, ACS reagent
CAS: 90-44-8 Molekylær formel: C14H10O Molekylvægt (g/mol): 194.23 MDL nummer: MFCD00001187 InChI nøgle: RJGDLRCDCYRQOQ-UHFFFAOYSA-N Synonym: anthrone,9 10h-anthracenone,carbothrone,anthranone,9-oxoanthracene,9,10-dihydro-9-oxoanthracene,az-o,anthracen-9 10h-one,anthracene, 9,10-dihydro-9-oxo,unii-fp0fj7k744 PubChem CID: 7018 ChEBI: CHEBI:33835 IUPAC navn: 10H-anthracen-9-on SMIL: O=C1C2=CC=CC=C2CC2=CC=CC=C12
| MDL nummer | MFCD00001187 |
|---|---|
| PubChem CID | 7018 |
| Molekylvægt (g/mol) | 194.23 |
| CAS | 90-44-8 |
| ChEBI | CHEBI:33835 |
| Synonym | anthrone,9 10h-anthracenone,carbothrone,anthranone,9-oxoanthracene,9,10-dihydro-9-oxoanthracene,az-o,anthracen-9 10h-one,anthracene, 9,10-dihydro-9-oxo,unii-fp0fj7k744 |
| SMIL | O=C1C2=CC=CC=C2CC2=CC=CC=C12 |
| IUPAC navn | 10H-anthracen-9-on |
| InChI nøgle | RJGDLRCDCYRQOQ-UHFFFAOYSA-N |
| Molekylær formel | C14H10O |
Resorcinol, ACS, 99.0-100.5%
CAS: 108-46-3 Molekylær formel: C6H6O2 Molekylvægt (g/mol): 110.112 MDL nummer: MFCD00002269 InChI nøgle: GHMLBKRAJCXXBS-UHFFFAOYSA-N Synonym: resorcinol,1,3-benzenediol,resorcin,1,3-dihydroxybenzene,3-hydroxyphenol,m-hydroquinone,resorcine,m-dihydroxybenzene,m-hydroxyphenol,m-benzenediol PubChem CID: 5054 ChEBI: CHEBI:27810 IUPAC navn: benzen-1,3-diol SMIL: C1=CC(=CC(=C1)O)O
| MDL nummer | MFCD00002269 |
|---|---|
| PubChem CID | 5054 |
| Molekylvægt (g/mol) | 110.112 |
| CAS | 108-46-3 |
| ChEBI | CHEBI:27810 |
| Synonym | resorcinol,1,3-benzenediol,resorcin,1,3-dihydroxybenzene,3-hydroxyphenol,m-hydroquinone,resorcine,m-dihydroxybenzene,m-hydroxyphenol,m-benzenediol |
| SMIL | C1=CC(=CC(=C1)O)O |
| IUPAC navn | benzen-1,3-diol |
| InChI nøgle | GHMLBKRAJCXXBS-UHFFFAOYSA-N |
| Molekylær formel | C6H6O2 |
Aluminon, ACS reagent
CAS: 569-58-4 Molekylær formel: C22H23N3O9 Molekylvægt (g/mol): 473.44 InChI nøgle: AIPNSHNRCQOTRI-UHFFFAOYSA-N Synonym: aluminon,ammonium aurintricarboxylate,aurintricarboxylic acid ammonium salt,aurintricarboxylic acid, acs PubChem CID: 54729869 ChEBI: CHEBI:87398 IUPAC navn: triazanium;5-[(3-carboxy-4-oxidophenyl)-(3-carboxy-4-oxocyclohexa-2,5-dien-1-yliden)methyl]-2-oxidobenzoat SMIL: C1=CC(=C(C=C1C(=C2C=CC(=O)C(=C2)C(=O)O)C3=CC(=C(C=C3)[O-])C(=O)[O-])C(=O)O)[O-].[NH4+].[NH4+].[NH4+]
| PubChem CID | 54729869 |
|---|---|
| Molekylvægt (g/mol) | 473.44 |
| CAS | 569-58-4 |
| ChEBI | CHEBI:87398 |
| Synonym | aluminon,ammonium aurintricarboxylate,aurintricarboxylic acid ammonium salt,aurintricarboxylic acid, acs |
| SMIL | C1=CC(=C(C=C1C(=C2C=CC(=O)C(=C2)C(=O)O)C3=CC(=C(C=C3)[O-])C(=O)[O-])C(=O)O)[O-].[NH4+].[NH4+].[NH4+] |
| IUPAC navn | triazanium;5-[(3-carboxy-4-oxidophenyl)-(3-carboxy-4-oxocyclohexa-2,5-dien-1-yliden)methyl]-2-oxidobenzoat |
| InChI nøgle | AIPNSHNRCQOTRI-UHFFFAOYSA-N |
| Molekylær formel | C22H23N3O9 |
Phenol, ACS, 99+%, stab.
CAS: 108-95-2 Molekylær formel: C6H6O Molekylvægt (g/mol): 94.11 MDL nummer: MFCD00002143 InChI nøgle: ISWSIDIOOBJBQZ-UHFFFAOYSA-N Synonym: carbolic acid,hydroxybenzene,phenic acid,phenylic acid,oxybenzene,benzenol,phenyl hydrate,monophenol,phenyl hydroxide,phenylic alcohol PubChem CID: 996 ChEBI: CHEBI:15882 IUPAC navn: phenol SMIL: OC1=CC=CC=C1
| MDL nummer | MFCD00002143 |
|---|---|
| PubChem CID | 996 |
| Molekylvægt (g/mol) | 94.11 |
| CAS | 108-95-2 |
| ChEBI | CHEBI:15882 |
| Synonym | carbolic acid,hydroxybenzene,phenic acid,phenylic acid,oxybenzene,benzenol,phenyl hydrate,monophenol,phenyl hydroxide,phenylic alcohol |
| SMIL | OC1=CC=CC=C1 |
| IUPAC navn | phenol |
| InChI nøgle | ISWSIDIOOBJBQZ-UHFFFAOYSA-N |
| Molekylær formel | C6H6O |
Dithizone, ACS, 85+%
CAS: 60-10-6 Molekylær formel: C13H12N4S Molekylvægt (g/mol): 256.33 MDL nummer: MFCD00003025 InChI nøgle: UOFGSWVZMUXXIY-UHFFFAOYSA-N Synonym: dithizone,dithizon,ditizon,carbazone, diphenylthio,usaf ek-3092,diazenecarbothioic acid, phenyl-, 2-phenylhydrazide,1,5-diphenyl-3-mercaptoformazan,3-formazanthiol, 1,5-diphenyl,unii-njz2cj4d6p,1,5-diphenyl-3-thiocarbazone PubChem CID: 657262 IUPAC navn: 1-anilino-3-phenyliminothiourinstof SMIL: S=C(NNC1=CC=CC=C1)N=NC1=CC=CC=C1
| MDL nummer | MFCD00003025 |
|---|---|
| PubChem CID | 657262 |
| Molekylvægt (g/mol) | 256.33 |
| CAS | 60-10-6 |
| Synonym | dithizone,dithizon,ditizon,carbazone, diphenylthio,usaf ek-3092,diazenecarbothioic acid, phenyl-, 2-phenylhydrazide,1,5-diphenyl-3-mercaptoformazan,3-formazanthiol, 1,5-diphenyl,unii-njz2cj4d6p,1,5-diphenyl-3-thiocarbazone |
| SMIL | S=C(NNC1=CC=CC=C1)N=NC1=CC=CC=C1 |
| IUPAC navn | 1-anilino-3-phenyliminothiourinstof |
| InChI nøgle | UOFGSWVZMUXXIY-UHFFFAOYSA-N |
| Molekylær formel | C13H12N4S |
Alumon, ACS, Thermo Scientific Chemicals
CAS: 569-58-4 Molekylær formel: C22H23N3O9 Molekylvægt (g/mol): 473.438 MDL nummer: MFCD00040925 InChI nøgle: AIPNSHNRCQOTRI-UHFFFAOYSA-N Synonym: aluminon,ammonium aurintricarboxylate,aurintricarboxylic acid ammonium salt,aurintricarboxylic acid, acs PubChem CID: 54729869 ChEBI: CHEBI:87398 IUPAC navn: triazanium;5-[(3-carboxy-4-oxidophenyl)-(3-carboxy-4-oxocyclohexa-2,5-dien-1-yliden)methyl]-2-oxidobenzoat SMIL: C1=CC(=C(C=C1C(=C2C=CC(=O)C(=C2)C(=O)O)C3=CC(=C(C=C3)[O-])C(=O)[O-])C(=O)O)[O-].[NH4+].[NH4+].[NH4+]
| MDL nummer | MFCD00040925 |
|---|---|
| PubChem CID | 54729869 |
| Molekylvægt (g/mol) | 473.438 |
| CAS | 569-58-4 |
| ChEBI | CHEBI:87398 |
| Synonym | aluminon,ammonium aurintricarboxylate,aurintricarboxylic acid ammonium salt,aurintricarboxylic acid, acs |
| SMIL | C1=CC(=C(C=C1C(=C2C=CC(=O)C(=C2)C(=O)O)C3=CC(=C(C=C3)[O-])C(=O)[O-])C(=O)O)[O-].[NH4+].[NH4+].[NH4+] |
| IUPAC navn | triazanium;5-[(3-carboxy-4-oxidophenyl)-(3-carboxy-4-oxocyclohexa-2,5-dien-1-yliden)methyl]-2-oxidobenzoat |
| InChI nøgle | AIPNSHNRCQOTRI-UHFFFAOYSA-N |
| Molekylær formel | C22H23N3O9 |
o-Tolidine dihydrochloride, ACS
CAS: 612-82-8 Molekylær formel: C14H18Cl2N2 Molekylvægt (g/mol): 285.212 MDL nummer: MFCD00012960 InChI nøgle: LUKPNZHXJRJBAN-UHFFFAOYSA-N Synonym: 3,3'-dimethylbenzidine dihydrochloride,o-tolidine dihydrochloride,3,3'-dimethyl-1,1'-biphenyl-4,4'-diamine dihydrochloride,unii-5msk350kd8,dsstox_cid_511,dsstox_rid_75633,dsstox_gsid_20511,tolidine dihydrochloride,1,1'-biphenyl-4,4'-diamine, 3,3'-dimethyl-, dihydrochloride,3,3'-dimethylbenzidine.2hcl PubChem CID: 108938 IUPAC navn: 4-(4-amino-3-methylphenyl)-2-methylanilin;dihydrochlorid SMIL: CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N.Cl.Cl
| MDL nummer | MFCD00012960 |
|---|---|
| PubChem CID | 108938 |
| Molekylvægt (g/mol) | 285.212 |
| CAS | 612-82-8 |
| Synonym | 3,3'-dimethylbenzidine dihydrochloride,o-tolidine dihydrochloride,3,3'-dimethyl-1,1'-biphenyl-4,4'-diamine dihydrochloride,unii-5msk350kd8,dsstox_cid_511,dsstox_rid_75633,dsstox_gsid_20511,tolidine dihydrochloride,1,1'-biphenyl-4,4'-diamine, 3,3'-dimethyl-, dihydrochloride,3,3'-dimethylbenzidine.2hcl |
| SMIL | CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N.Cl.Cl |
| IUPAC navn | 4-(4-amino-3-methylphenyl)-2-methylanilin;dihydrochlorid |
| InChI nøgle | LUKPNZHXJRJBAN-UHFFFAOYSA-N |
| Molekylær formel | C14H18Cl2N2 |
Benzyl alcohol, ACS, 99+%
CAS: 100-51-6 Molekylær formel: C7H8O Molekylvægt (g/mol): 108.14 MDL nummer: MFCD00004599,MFCD03792087 InChI nøgle: WVDDGKGOMKODPV-UHFFFAOYSA-N Synonym: benzyl alcohol,benzenemethanol,phenylcarbinol,benzoyl alcohol,hydroxytoluene,benzenecarbinol,phenylmethyl alcohol,alpha-toluenol,hydroxymethyl benzene,benzylalcohol PubChem CID: 244 ChEBI: CHEBI:17987 IUPAC navn: phenylmethanol SMIL: OCC1=CC=CC=C1
| MDL nummer | MFCD00004599,MFCD03792087 |
|---|---|
| PubChem CID | 244 |
| Molekylvægt (g/mol) | 108.14 |
| CAS | 100-51-6 |
| ChEBI | CHEBI:17987 |
| Synonym | benzyl alcohol,benzenemethanol,phenylcarbinol,benzoyl alcohol,hydroxytoluene,benzenecarbinol,phenylmethyl alcohol,alpha-toluenol,hydroxymethyl benzene,benzylalcohol |
| SMIL | OCC1=CC=CC=C1 |
| IUPAC navn | phenylmethanol |
| InChI nøgle | WVDDGKGOMKODPV-UHFFFAOYSA-N |
| Molekylær formel | C7H8O |