Organoheterocykliske forbindelser
Filtrerede søgeresultater
o-kresolphtalein, Thermo Scientific Chemicals
CAS: 596-27-0 Molekylær formel: C22H18O4 Molekylvægt (g/mol): 346.38 MDL nummer: MFCD00005912 InChI nøgle: CPBJMKMKNCRKQB-UHFFFAOYSA-N Synonym: o-cresolphthalein,cresolphthalein,3,3'-dimethylphenolphthalein,1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-3-methylphenyl,3',3-dimethylphenolphthalein,o-cresolphalein,3,3-bis 4-hydroxy-3-methylphenyl isobenzofuran-1 3h-one,unii-xou2d9049g,phenolphthalein, 3',3-dimethyl,3,3-bis 4-hydroxy-m-tolyl phthalide PubChem CID: 68995 SMIL: CC1=CC(=CC=C1O)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C(C)=C1
| MDL nummer | MFCD00005912 |
|---|---|
| PubChem CID | 68995 |
| Molekylvægt (g/mol) | 346.38 |
| CAS | 596-27-0 |
| Synonym | o-cresolphthalein,cresolphthalein,3,3'-dimethylphenolphthalein,1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-3-methylphenyl,3',3-dimethylphenolphthalein,o-cresolphalein,3,3-bis 4-hydroxy-3-methylphenyl isobenzofuran-1 3h-one,unii-xou2d9049g,phenolphthalein, 3',3-dimethyl,3,3-bis 4-hydroxy-m-tolyl phthalide |
| SMIL | CC1=CC(=CC=C1O)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C(C)=C1 |
| InChI nøgle | CPBJMKMKNCRKQB-UHFFFAOYSA-N |
| Molekylær formel | C22H18O4 |
Pyridoxalhydrochlorid, 99 %, Thermo Scientific Chemicals
CAS: 65-22-5 Molekylær formel: C8H9NO3·HCl Molekylvægt (g/mol): 203.62 MDL nummer: MFCD00012809 InChI nøgle: FCHXJFJNDJXENQ-UHFFFAOYSA-N Synonym: pyridoxal hydrochloride,pyridoxal hcl,vitamin b6 hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde hydrochloride,unii-1416kf0qbc,2-methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine hydrochloride,pl hcl,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde, hydrochloride,3-hydroxy-5-hydroxymethyl-2-methyl-4-pyridinecarboxaldehyde hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carbaldehyde hydrochloride PubChem CID: 6171 IUPAC navn: 3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-carbaldehyd;hydrochlorid SMIL: CC1=NC=C(C(=C1O)C=O)CO.Cl
| MDL nummer | MFCD00012809 |
|---|---|
| PubChem CID | 6171 |
| Molekylvægt (g/mol) | 203.62 |
| CAS | 65-22-5 |
| Synonym | pyridoxal hydrochloride,pyridoxal hcl,vitamin b6 hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde hydrochloride,unii-1416kf0qbc,2-methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine hydrochloride,pl hcl,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde, hydrochloride,3-hydroxy-5-hydroxymethyl-2-methyl-4-pyridinecarboxaldehyde hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carbaldehyde hydrochloride |
| SMIL | CC1=NC=C(C(=C1O)C=O)CO.Cl |
| IUPAC navn | 3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-carbaldehyd;hydrochlorid |
| InChI nøgle | FCHXJFJNDJXENQ-UHFFFAOYSA-N |
| Molekylær formel | C8H9NO3·HCl |
Melamin, 99%, Thermo Scientific Chemicals
CAS: 108-78-1 Molekylær formel: C3H6N6 Molekylvægt (g/mol): 126.12 MDL nummer: MFCD00006055 InChI nøgle: JDSHMPZPIAZGSV-UHFFFAOYSA-N Synonym: melamine,cyanurotriamide,cyanuramide,cyanurotriamine,isomelamine,theoharn,teoharn,triaminotriazine,cyanuric triamide,hicophor pr PubChem CID: 7955 ChEBI: CHEBI:27915 IUPAC navn: 1,3,5-triazin-2,4,6-triamin SMIL: NC1=NC(N)=NC(N)=N1
| MDL nummer | MFCD00006055 |
|---|---|
| PubChem CID | 7955 |
| Molekylvægt (g/mol) | 126.12 |
| CAS | 108-78-1 |
| ChEBI | CHEBI:27915 |
| Synonym | melamine,cyanurotriamide,cyanuramide,cyanurotriamine,isomelamine,theoharn,teoharn,triaminotriazine,cyanuric triamide,hicophor pr |
| SMIL | NC1=NC(N)=NC(N)=N1 |
| IUPAC navn | 1,3,5-triazin-2,4,6-triamin |
| InChI nøgle | JDSHMPZPIAZGSV-UHFFFAOYSA-N |
| Molekylær formel | C3H6N6 |
2-Pyrrolidinon, 99 %, Thermo Scientific Chemicals
CAS: 616-45-5 Molekylær formel: C4H7NO Molekylvægt (g/mol): 85.11 MDL nummer: MFCD00005270 InChI nøgle: HNJBEVLQSNELDL-UHFFFAOYSA-N Synonym: 2-pyrrolidinone,pyrrolidone,butyrolactam,2-pyrrolidone,2-oxopyrrolidine,pyrrolidon,2-ketopyrrolidine,2-pyrol,pyrrolidinone,gamma-butyrolactam PubChem CID: 12025 ChEBI: CHEBI:36592 IUPAC navn: pyrrolidin-2-on SMIL: C1CC(=O)NC1
| MDL nummer | MFCD00005270 |
|---|---|
| PubChem CID | 12025 |
| Molekylvægt (g/mol) | 85.11 |
| CAS | 616-45-5 |
| ChEBI | CHEBI:36592 |
| Synonym | 2-pyrrolidinone,pyrrolidone,butyrolactam,2-pyrrolidone,2-oxopyrrolidine,pyrrolidon,2-ketopyrrolidine,2-pyrol,pyrrolidinone,gamma-butyrolactam |
| SMIL | C1CC(=O)NC1 |
| IUPAC navn | pyrrolidin-2-on |
| InChI nøgle | HNJBEVLQSNELDL-UHFFFAOYSA-N |
| Molekylær formel | C4H7NO |
Gibberellinsyre, 90%, Thermo Scientific Chemicals
CAS: 77-06-5 Molekylær formel: C19H22O6 Molekylvægt (g/mol): 346.38 MDL nummer: MFCD00079329 InChI nøgle: IXORZMNAPKEEDV-QTWFBFKQSA-N Synonym: gibberellic acid,gibberellin a3,gibberellin,gibreskol,brellin,cekugib,grocel,gibberellin x,gibberellic acid ga3,gib-tabs PubChem CID: 91757643 IUPAC navn: (1R,2R,5S,8S,9S,10R,12S)-5,12-dihydroxy-11-methyl-6-methyliden-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,110,02,83-heptadec-9-1 SMIL: CC12[C@H]3[C@H](C(O)=O)[C@@]45CC(=C)[C@@](O)(C4)CC[C@H]5[C@]3(OC1=O)C=C[C@@H]2O
| MDL nummer | MFCD00079329 |
|---|---|
| PubChem CID | 91757643 |
| Molekylvægt (g/mol) | 346.38 |
| CAS | 77-06-5 |
| Synonym | gibberellic acid,gibberellin a3,gibberellin,gibreskol,brellin,cekugib,grocel,gibberellin x,gibberellic acid ga3,gib-tabs |
| SMIL | CC12[C@H]3[C@H](C(O)=O)[C@@]45CC(=C)[C@@](O)(C4)CC[C@H]5[C@]3(OC1=O)C=C[C@@H]2O |
| IUPAC navn | (1R,2R,5S,8S,9S,10R,12S)-5,12-dihydroxy-11-methyl-6-methyliden-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,110,02,83-heptadec-9-1 |
| InChI nøgle | IXORZMNAPKEEDV-QTWFBFKQSA-N |
| Molekylær formel | C19H22O6 |
4,5-Dicyanoimidazol, 99 %, Thermo Scientific Chemicals
CAS: 1122-28-7 Molekylær formel: C5H2N4 Molekylvægt (g/mol): 118.10 MDL nummer: MFCD00005194 InChI nøgle: XGDRLCRGKUCBQL-UHFFFAOYSA-N PubChem CID: 70729 IUPAC navn: 1H-imidazol-4,5-dicarbonitril SMIL: N#CC1=C(N=CN1)C#N
| MDL nummer | MFCD00005194 |
|---|---|
| PubChem CID | 70729 |
| Molekylvægt (g/mol) | 118.10 |
| CAS | 1122-28-7 |
| SMIL | N#CC1=C(N=CN1)C#N |
| IUPAC navn | 1H-imidazol-4,5-dicarbonitril |
| InChI nøgle | XGDRLCRGKUCBQL-UHFFFAOYSA-N |
| Molekylær formel | C5H2N4 |
Melamin, 99%, Thermo Scientific Chemicals
CAS: 108-78-1 Molekylær formel: C3H6N6 Molekylvægt (g/mol): 126.12 MDL nummer: MFCD00006055 InChI nøgle: JDSHMPZPIAZGSV-UHFFFAOYSA-N Synonym: melamine,cyanurotriamide,cyanuramide,cyanurotriamine,isomelamine,theoharn,teoharn,triaminotriazine,cyanuric triamide,hicophor pr PubChem CID: 7955 ChEBI: CHEBI:27915 IUPAC navn: 1,3,5-triazin-2,4,6-triamin SMIL: NC1=NC(N)=NC(N)=N1
| MDL nummer | MFCD00006055 |
|---|---|
| PubChem CID | 7955 |
| Molekylvægt (g/mol) | 126.12 |
| CAS | 108-78-1 |
| ChEBI | CHEBI:27915 |
| Synonym | melamine,cyanurotriamide,cyanuramide,cyanurotriamine,isomelamine,theoharn,teoharn,triaminotriazine,cyanuric triamide,hicophor pr |
| SMIL | NC1=NC(N)=NC(N)=N1 |
| IUPAC navn | 1,3,5-triazin-2,4,6-triamin |
| InChI nøgle | JDSHMPZPIAZGSV-UHFFFAOYSA-N |
| Molekylær formel | C3H6N6 |
5-Fluorocytosin, 99+ %, Thermo Scientific Chemicals
CAS: 2022-85-7 Molekylær formel: C4H4FN3O Molekylvægt (g/mol): 129.09 MDL nummer: MFCD00006035,MFCD00179326,MFCD03547958 InChI nøgle: XRECTZIEBJDKEO-UHFFFAOYSA-N Synonym: 5-fluorocytosine,flucytosine,ancotil,ancobon,flucytosin,5-fluorocystosine,fluocytosine,5-fc,5-fluorocytosin,fluorcytosine PubChem CID: 3366 ChEBI: CHEBI:5100 IUPAC navn: 6-amino-5-fluor-lH-pyrimidin-2-on SMIL: NC1=C(F)C=NC(=O)N1
| MDL nummer | MFCD00006035,MFCD00179326,MFCD03547958 |
|---|---|
| PubChem CID | 3366 |
| Molekylvægt (g/mol) | 129.09 |
| CAS | 2022-85-7 |
| ChEBI | CHEBI:5100 |
| Synonym | 5-fluorocytosine,flucytosine,ancotil,ancobon,flucytosin,5-fluorocystosine,fluocytosine,5-fc,5-fluorocytosin,fluorcytosine |
| SMIL | NC1=C(F)C=NC(=O)N1 |
| IUPAC navn | 6-amino-5-fluor-lH-pyrimidin-2-on |
| InChI nøgle | XRECTZIEBJDKEO-UHFFFAOYSA-N |
| Molekylær formel | C4H4FN3O |
9-Hydroxyxanthen, 98 %, Thermo Scientific Chemicals
CAS: 90-46-0 Molekylær formel: C13H10O2 Molekylvægt (g/mol): 198.22 MDL nummer: MFCD00005057 InChI nøgle: 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 navn: 9H-xanthen-9-ol SMIL: C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O
| MDL nummer | MFCD00005057 |
|---|---|
| PubChem CID | 72861 |
| Molekylvægt (g/mol) | 198.22 |
| CAS | 90-46-0 |
| Synonym | 9-hydroxyxanthene,xanthydrol,xanthanol,9-xanthydrol,xanthen-9-ol,xanthene, hydroxy,9-xanthenol,ccris 1640,unii-7131m69ikf,xanthrol |
| SMIL | C1=CC=C2C(=C1)C(C3=CC=CC=C3O2)O |
| IUPAC navn | 9H-xanthen-9-ol |
| InChI nøgle | JFRMYMMIJXLMBB-UHFFFAOYSA-N |
| Molekylær formel | C13H10O2 |
Pyridoxalhydrochlorid, 99 %, Thermo Scientific Chemicals
CAS: 65-22-5 Molekylær formel: C8H10ClNO3 Molekylvægt (g/mol): 203.622 MDL nummer: MFCD00012809 InChI nøgle: FCHXJFJNDJXENQ-UHFFFAOYSA-N Synonym: pyridoxal hydrochloride,pyridoxal hcl,vitamin b6 hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde hydrochloride,unii-1416kf0qbc,2-methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine hydrochloride,pl hcl,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde, hydrochloride,3-hydroxy-5-hydroxymethyl-2-methyl-4-pyridinecarboxaldehyde hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carbaldehyde hydrochloride PubChem CID: 6171 IUPAC navn: 3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-carbaldehyd;hydrochlorid SMIL: CC1=NC=C(C(=C1O)C=O)CO.Cl
| MDL nummer | MFCD00012809 |
|---|---|
| PubChem CID | 6171 |
| Molekylvægt (g/mol) | 203.622 |
| CAS | 65-22-5 |
| Synonym | pyridoxal hydrochloride,pyridoxal hcl,vitamin b6 hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde hydrochloride,unii-1416kf0qbc,2-methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine hydrochloride,pl hcl,3-hydroxy-5-hydroxymethyl-2-methylisonicotinaldehyde, hydrochloride,3-hydroxy-5-hydroxymethyl-2-methyl-4-pyridinecarboxaldehyde hydrochloride,3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carbaldehyde hydrochloride |
| SMIL | CC1=NC=C(C(=C1O)C=O)CO.Cl |
| IUPAC navn | 3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-carbaldehyd;hydrochlorid |
| InChI nøgle | FCHXJFJNDJXENQ-UHFFFAOYSA-N |
| Molekylær formel | C8H10ClNO3 |
Serotoninhydrochlorid, 98%, Thermo Scientific Chemicals
CAS: 153-98-0 Molekylær formel: C10H13ClN2O Molekylvægt (g/mol): 212.677 MDL nummer: MFCD00012686 InChI nøgle: MDIGAZPGKJFIAH-UHFFFAOYSA-N Synonym: serotonin hydrochloride,5-hydroxytryptamine hydrochloride,3-2-aminoethyl-1h-indol-5-ol hydrochloride,serotonin hcl,5-hydroxytryptamine hcl,unii-gkn429m9vs,ccris 4420,1h-indol-5-ol, 3-2-aminoethyl-, monohydrochloride,gkn429m9vs,3-2-aminoethyl indol-5-ol, chloride PubChem CID: 160436 IUPAC navn: 3-(2-aminoethyl)-lH-indol-5-ol;hydrochlorid SMIL: C1=CC2=C(C=C1O)C(=CN2)CCN.Cl
| MDL nummer | MFCD00012686 |
|---|---|
| PubChem CID | 160436 |
| Molekylvægt (g/mol) | 212.677 |
| CAS | 153-98-0 |
| Synonym | serotonin hydrochloride,5-hydroxytryptamine hydrochloride,3-2-aminoethyl-1h-indol-5-ol hydrochloride,serotonin hcl,5-hydroxytryptamine hcl,unii-gkn429m9vs,ccris 4420,1h-indol-5-ol, 3-2-aminoethyl-, monohydrochloride,gkn429m9vs,3-2-aminoethyl indol-5-ol, chloride |
| SMIL | C1=CC2=C(C=C1O)C(=CN2)CCN.Cl |
| IUPAC navn | 3-(2-aminoethyl)-lH-indol-5-ol;hydrochlorid |
| InChI nøgle | MDIGAZPGKJFIAH-UHFFFAOYSA-N |
| Molekylær formel | C10H13ClN2O |
Indol-3-eddikesyre, 98+%, Thermo Scientific Chemicals
CAS: 87-51-4 Molekylær formel: C10H9NO2 Molekylvægt (g/mol): 175.19 MDL nummer: MFCD00005636 InChI nøgle: SEOVTRFCIGRIMH-UHFFFAOYSA-N Synonym: indole-3-acetic acid,3-indoleacetic acid,heteroauxin,indoleacetic acid,1h-indole-3-acetic acid,2-1h-indol-3-yl acetic acid,rhizopin,1h-indol-3-ylacetic acid,indol-3-ylacetic acid,rhizopon a PubChem CID: 802 ChEBI: CHEBI:16411 IUPAC navn: 2-(lH-indol-3-yl)eddikesyre SMIL: OC(=O)CC1=CNC2=CC=CC=C12
| MDL nummer | MFCD00005636 |
|---|---|
| PubChem CID | 802 |
| Molekylvægt (g/mol) | 175.19 |
| CAS | 87-51-4 |
| ChEBI | CHEBI:16411 |
| Synonym | indole-3-acetic acid,3-indoleacetic acid,heteroauxin,indoleacetic acid,1h-indole-3-acetic acid,2-1h-indol-3-yl acetic acid,rhizopin,1h-indol-3-ylacetic acid,indol-3-ylacetic acid,rhizopon a |
| SMIL | OC(=O)CC1=CNC2=CC=CC=C12 |
| IUPAC navn | 2-(lH-indol-3-yl)eddikesyre |
| InChI nøgle | SEOVTRFCIGRIMH-UHFFFAOYSA-N |
| Molekylær formel | C10H9NO2 |
Xanthone, 99%, Thermo Scientific Chemicals
CAS: 90-47-1 Molekylær formel: C13H8O2 Molekylvægt (g/mol): 196.205 MDL nummer: MFCD00005060 InChI nøgle: JNELGWHKGNBSMD-UHFFFAOYSA-N Synonym: xanthone,9h-xanthen-9-one,9-xanthenone,benzophenone oxide,9-oxoxanthene,genicide,xanthenone,9-xanthone,diphenylene ketone oxide,dibenzo-gamma-pyrone PubChem CID: 7020 ChEBI: CHEBI:37647 IUPAC navn: xanthen-9-one SMIL: C1=CC=C2C(=C1)C(=O)C3=CC=CC=C3O2
| MDL nummer | MFCD00005060 |
|---|---|
| PubChem CID | 7020 |
| Molekylvægt (g/mol) | 196.205 |
| CAS | 90-47-1 |
| ChEBI | CHEBI:37647 |
| Synonym | xanthone,9h-xanthen-9-one,9-xanthenone,benzophenone oxide,9-oxoxanthene,genicide,xanthenone,9-xanthone,diphenylene ketone oxide,dibenzo-gamma-pyrone |
| SMIL | C1=CC=C2C(=C1)C(=O)C3=CC=CC=C3O2 |
| IUPAC navn | xanthen-9-one |
| InChI nøgle | JNELGWHKGNBSMD-UHFFFAOYSA-N |
| Molekylær formel | C13H8O2 |
2,4-dimethyl-3-ethylpyrrol, 96 %, Thermo Scientific Chemicals
CAS: 517-22-6 MDL nummer: MFCD00005222 InChI nøgle: ZEBBLOXDLGIMEG-UHFFFAOYSA-N Synonym: 2,4-dimethyl-3-ethylpyrrole,kryptopyrrole,kryptopyrrol,3-ethyl-2,4-dimethylpyrrole,cryptopyrrole,2,4-dimethyl-3-ethyl-1h-pyrrole,1h-pyrrole, 3-ethyl-2,4-dimethyl,pyrrole, 3-ethyl-2,4-dimethyl,acmc-209kvh,5-20-05-00099 beilstein handbook reference PubChem CID: 10600 IUPAC navn: 3-ethyl-2,4-dimethyl-lH-pyrrol SMIL: CCC1=C(NC=C1C)C
| MDL nummer | MFCD00005222 |
|---|---|
| PubChem CID | 10600 |
| CAS | 517-22-6 |
| Synonym | 2,4-dimethyl-3-ethylpyrrole,kryptopyrrole,kryptopyrrol,3-ethyl-2,4-dimethylpyrrole,cryptopyrrole,2,4-dimethyl-3-ethyl-1h-pyrrole,1h-pyrrole, 3-ethyl-2,4-dimethyl,pyrrole, 3-ethyl-2,4-dimethyl,acmc-209kvh,5-20-05-00099 beilstein handbook reference |
| SMIL | CCC1=C(NC=C1C)C |
| IUPAC navn | 3-ethyl-2,4-dimethyl-lH-pyrrol |
| InChI nøgle | ZEBBLOXDLGIMEG-UHFFFAOYSA-N |
3-aminophthalhydrazid, 98 %, Thermo Scientific Chemicals
CAS: 521-31-3 Molekylær formel: C8H7N3O2 Molekylvægt (g/mol): 177.163 MDL nummer: MFCD00006890 InChI nøgle: HWYHZTIRURJOHG-UHFFFAOYSA-N Synonym: luminol,3-aminophthalhydrazide,3-aminophthalic hydrazide,5-amino-2,3-dihydro-1,4-phthalazinedione,1,4-phthalazinedione, 5-amino-2,3-dihydro,3-aminophthalic acid hydrazide,5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione,unii-5exp385q4f,ccris 5962,3-aminophthalylhydrazide PubChem CID: 10638 IUPAC navn: 5-amino-2,3-dihydrophthalazin-1,4-dion SMIL: C1=CC2=C(C(=C1)N)C(=O)NNC2=O
| MDL nummer | MFCD00006890 |
|---|---|
| PubChem CID | 10638 |
| Molekylvægt (g/mol) | 177.163 |
| CAS | 521-31-3 |
| Synonym | luminol,3-aminophthalhydrazide,3-aminophthalic hydrazide,5-amino-2,3-dihydro-1,4-phthalazinedione,1,4-phthalazinedione, 5-amino-2,3-dihydro,3-aminophthalic acid hydrazide,5-amino-1,2,3,4-tetrahydrophthalazine-1,4-dione,unii-5exp385q4f,ccris 5962,3-aminophthalylhydrazide |
| SMIL | C1=CC2=C(C(=C1)N)C(=O)NNC2=O |
| IUPAC navn | 5-amino-2,3-dihydrophthalazin-1,4-dion |
| InChI nøgle | HWYHZTIRURJOHG-UHFFFAOYSA-N |
| Molekylær formel | C8H7N3O2 |