Organic acids and derivatives
Filtered Search Results
(-)-Dibenzoyl-L-tartaric Acid 98.0+%, TCI America™
CAS: 2743-38-6 Molecular Formula: C18H14O8 Molecular Weight (g/mol): 358.30 MDL Number: MFCD00003074 InChI Key: YONLFQNRGZXBBF-ZIAGYGMSSA-N Synonym: dibenzoyl-l-tartaric acid,2r,3r-2,3-bis benzoyloxy succinic acid,dibenzoyltartaric acid,--dibenzoyl-l-tartaric acid,dibenzoyl-l-tartaricacid,l-dibenzoyl tartaric acid,butanedioic acid, 2,3-bis benzoyloxy-, 2r,3r,unii-3q14b666vm,2,3-bis benzoyloxy tartaric acid,o,o-dibenzoyl-+-tartaric acid PubChem CID: 75969 IUPAC Name: (2R,3R)-2,3-bis(benzoyloxy)butanedioic acid SMILES: OC(=O)[C@H](OC(=O)C1=CC=CC=C1)[C@@H](OC(=O)C1=CC=CC=C1)C(O)=O
| PubChem CID | 75969 |
|---|---|
| CAS | 2743-38-6 |
| Molecular Weight (g/mol) | 358.30 |
| MDL Number | MFCD00003074 |
| SMILES | OC(=O)[C@H](OC(=O)C1=CC=CC=C1)[C@@H](OC(=O)C1=CC=CC=C1)C(O)=O |
| Synonym | dibenzoyl-l-tartaric acid,2r,3r-2,3-bis benzoyloxy succinic acid,dibenzoyltartaric acid,--dibenzoyl-l-tartaric acid,dibenzoyl-l-tartaricacid,l-dibenzoyl tartaric acid,butanedioic acid, 2,3-bis benzoyloxy-, 2r,3r,unii-3q14b666vm,2,3-bis benzoyloxy tartaric acid,o,o-dibenzoyl-+-tartaric acid |
| IUPAC Name | (2R,3R)-2,3-bis(benzoyloxy)butanedioic acid |
| InChI Key | YONLFQNRGZXBBF-ZIAGYGMSSA-N |
| Molecular Formula | C18H14O8 |
1,6-Diaminohexane-N,N,N',N'-tetraacetic Acid 98.0+%, TCI America™
CAS: 1633-00-7 Molecular Formula: C14H24N2O8 Molecular Weight (g/mol): 348.35 MDL Number: MFCD00004292 InChI Key: YGDVXSDNEFDTGV-UHFFFAOYSA-N Synonym: 1,6-diaminohexane-n,n,n',n'-tetraacetic acid,hexamethylenediaminetetraacetic acid,hexamethylenediamine-n,n,n',n'-tetraacetic acid,2-6-bis carboxymethyl amino hexyl carboxymethyl amino acetic acid,hdta,glycine,n,n'-1,6-hexanediylbis n-carboxymethyl,6-bis carboxymethyl amino hexyl carboxymethyl amino acetic acid,glycine, n,n'-1,6-hexanediylbis n-carboxymethyl,1,6-hexanediaminetetraacetic acid,2,2',2,2'-hexane-1,6-diyldinitrilo tetraacetic acid PubChem CID: 74209 IUPAC Name: 2-({6-[bis(carboxymethyl)amino]hexyl}(carboxymethyl)amino)acetic acid SMILES: OC(=O)CN(CCCCCCN(CC(O)=O)CC(O)=O)CC(O)=O
| PubChem CID | 74209 |
|---|---|
| CAS | 1633-00-7 |
| Molecular Weight (g/mol) | 348.35 |
| MDL Number | MFCD00004292 |
| SMILES | OC(=O)CN(CCCCCCN(CC(O)=O)CC(O)=O)CC(O)=O |
| Synonym | 1,6-diaminohexane-n,n,n',n'-tetraacetic acid,hexamethylenediaminetetraacetic acid,hexamethylenediamine-n,n,n',n'-tetraacetic acid,2-6-bis carboxymethyl amino hexyl carboxymethyl amino acetic acid,hdta,glycine,n,n'-1,6-hexanediylbis n-carboxymethyl,6-bis carboxymethyl amino hexyl carboxymethyl amino acetic acid,glycine, n,n'-1,6-hexanediylbis n-carboxymethyl,1,6-hexanediaminetetraacetic acid,2,2',2,2'-hexane-1,6-diyldinitrilo tetraacetic acid |
| IUPAC Name | 2-({6-[bis(carboxymethyl)amino]hexyl}(carboxymethyl)amino)acetic acid |
| InChI Key | YGDVXSDNEFDTGV-UHFFFAOYSA-N |
| Molecular Formula | C14H24N2O8 |
1,2,3,4-Cyclopentanetetracarboxylic Acid 98.0+%, TCI America™
CAS: 3724-52-5 Molecular Formula: C9H10O8 Molecular Weight (g/mol): 246.171 MDL Number: MFCD00001377 InChI Key: WOSVXXBNNCUXMT-UHFFFAOYSA-N PubChem CID: 19622 IUPAC Name: cyclopentane-1,2,3,4-tetracarboxylic acid SMILES: C1C(C(C(C1C(=O)O)C(=O)O)C(=O)O)C(=O)O
| PubChem CID | 19622 |
|---|---|
| CAS | 3724-52-5 |
| Molecular Weight (g/mol) | 246.171 |
| MDL Number | MFCD00001377 |
| SMILES | C1C(C(C(C1C(=O)O)C(=O)O)C(=O)O)C(=O)O |
| IUPAC Name | cyclopentane-1,2,3,4-tetracarboxylic acid |
| InChI Key | WOSVXXBNNCUXMT-UHFFFAOYSA-N |
| Molecular Formula | C9H10O8 |
(+)-Dipivaloyl-D-tartaric Acid 98.0+%, TCI America™
CAS: 76769-55-6 Molecular Formula: C14H22O8 Molecular Weight (g/mol): 318.32 MDL Number: MFCD00015634 InChI Key: UFHJEZDFEHUYCR-YZYOREDDNA-N PubChem CID: 16212279 IUPAC Name: (2S,3S)-2,3-bis[(2,2-dimethylpropanoyl)oxy]butanedioic acid SMILES: CC(C)(C)C(=O)O[C@@H]([C@H](OC(=O)C(C)(C)C)C(O)=O)C(O)=O
| PubChem CID | 16212279 |
|---|---|
| CAS | 76769-55-6 |
| Molecular Weight (g/mol) | 318.32 |
| MDL Number | MFCD00015634 |
| SMILES | CC(C)(C)C(=O)O[C@@H]([C@H](OC(=O)C(C)(C)C)C(O)=O)C(O)=O |
| IUPAC Name | (2S,3S)-2,3-bis[(2,2-dimethylpropanoyl)oxy]butanedioic acid |
| InChI Key | UFHJEZDFEHUYCR-YZYOREDDNA-N |
| Molecular Formula | C14H22O8 |
Diammonium Ethylenediaminetetraacetate Monohydrate 98.0+%, TCI America™
CAS: 304675-80-7 Molecular Formula: C10H24N4O9 Molecular Weight (g/mol): 344.321 InChI Key: WRSUMHYBOYWMTD-UHFFFAOYSA-N Synonym: Diammonium EDTA, Ethylenediaminetetraacetic Acid Diammonium Salt PubChem CID: 18446095 IUPAC Name: diazanium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydrate SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.[NH4+].[NH4+].O
| PubChem CID | 18446095 |
|---|---|
| CAS | 304675-80-7 |
| Molecular Weight (g/mol) | 344.321 |
| SMILES | C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.[NH4+].[NH4+].O |
| Synonym | Diammonium EDTA, Ethylenediaminetetraacetic Acid Diammonium Salt |
| IUPAC Name | diazanium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydrate |
| InChI Key | WRSUMHYBOYWMTD-UHFFFAOYSA-N |
| Molecular Formula | C10H24N4O9 |
2,3,4,6-Tetra-O-acetyl-beta-D-glucopyranosyl Isothiocyanate 98.0+%, TCI America™
CAS: 14152-97-7 Molecular Formula: C15H19NO9S Molecular Weight (g/mol): 389.38 MDL Number: MFCD00043085 InChI Key: WOWNQYXIQWQJRJ-UHFFFAOYNA-N Synonym: GITC PubChem CID: 99462 IUPAC Name: [3,4,5-tris(acetyloxy)-6-isothiocyanatooxan-2-yl]methyl acetate SMILES: CC(=O)OCC1OC(N=C=S)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O
| PubChem CID | 99462 |
|---|---|
| CAS | 14152-97-7 |
| Molecular Weight (g/mol) | 389.38 |
| MDL Number | MFCD00043085 |
| SMILES | CC(=O)OCC1OC(N=C=S)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O |
| Synonym | GITC |
| IUPAC Name | [3,4,5-tris(acetyloxy)-6-isothiocyanatooxan-2-yl]methyl acetate |
| InChI Key | WOWNQYXIQWQJRJ-UHFFFAOYNA-N |
| Molecular Formula | C15H19NO9S |
Ethylenediaminetetraacetic Acid Disodium Zinc Salt Hydrate 98.0+%, TCI America™
CAS: 14025-21-9 Molecular Formula: C10H12N2Na2O8Zn Molecular Weight (g/mol): 399.57 MDL Number: MFCD00135187 InChI Key: UBLOJEHIINPTTG-UHFFFAOYSA-J Synonym: Disodium Zinc Ethylenediaminetetraacetate PubChem CID: 51808 IUPAC Name: zinc(2+) disodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxylatomethyl)amino)acetate SMILES: [Na+].[Na+].[Zn++].[O-]C(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC([O-])=O
| PubChem CID | 51808 |
|---|---|
| CAS | 14025-21-9 |
| Molecular Weight (g/mol) | 399.57 |
| MDL Number | MFCD00135187 |
| SMILES | [Na+].[Na+].[Zn++].[O-]C(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC([O-])=O |
| Synonym | Disodium Zinc Ethylenediaminetetraacetate |
| IUPAC Name | zinc(2+) disodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxylatomethyl)amino)acetate |
| InChI Key | UBLOJEHIINPTTG-UHFFFAOYSA-J |
| Molecular Formula | C10H12N2Na2O8Zn |
Thiomalic Acid 98.0+%, TCI America™
CAS: 70-49-5 Molecular Formula: C4H6O4S Molecular Weight (g/mol): 150.148 MDL Number: MFCD00004860 InChI Key: NJRXVEJTAYWCQJ-UHFFFAOYSA-N Synonym: mercaptosuccinic acid,thiomalic acid,2-thiomalic acid,2-mercaptosuccinic acid,monomercaptosuccinic acid,butanedioic acid, mercapto,malic acid, 2-thio,mercaptosuccinate,2-sulfanylsuccinic acid,dl-mercaptosuccinic acid PubChem CID: 6268 ChEBI: CHEBI:38705 IUPAC Name: 2-sulfanylbutanedioic acid SMILES: C(C(C(=O)O)S)C(=O)O
| PubChem CID | 6268 |
|---|---|
| CAS | 70-49-5 |
| Molecular Weight (g/mol) | 150.148 |
| ChEBI | CHEBI:38705 |
| MDL Number | MFCD00004860 |
| SMILES | C(C(C(=O)O)S)C(=O)O |
| Synonym | mercaptosuccinic acid,thiomalic acid,2-thiomalic acid,2-mercaptosuccinic acid,monomercaptosuccinic acid,butanedioic acid, mercapto,malic acid, 2-thio,mercaptosuccinate,2-sulfanylsuccinic acid,dl-mercaptosuccinic acid |
| IUPAC Name | 2-sulfanylbutanedioic acid |
| InChI Key | NJRXVEJTAYWCQJ-UHFFFAOYSA-N |
| Molecular Formula | C4H6O4S |
Stigmasterol 90.0+%, TCI America™
CAS: 83-48-7 Molecular Formula: C29H48O Molecular Weight (g/mol): 412.70 MDL Number: MFCD00003630 InChI Key: HCXVJBMSMIARIN-PHZDYDNGSA-N Synonym: stigmasterol,stigmasterin,beta-stigmasterol,stigmasta-5,22-dien-3beta-ol,24s-5,22-stigmastadien-3beta-ol,unii-99wuk5d0y8,stigmasta-5,22e-dien-3beta-ol,stigmasta-5,22-dien-3-beta-ol,3beta,22e-stigmasta-5,22-dien-3-ol,stigmasta-5,22-dien-3-ol, 3b,22e PubChem CID: 5280794 ChEBI: CHEBI:28824 IUPAC Name: (1R,3aS,3bS,7S,9aR,9bS,11aR)-1-[(2R,3E,5S)-5-ethyl-6-methylhept-3-en-2-yl]-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-ol SMILES: CC[C@H](\C=C\[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)C(C)C
| PubChem CID | 5280794 |
|---|---|
| CAS | 83-48-7 |
| Molecular Weight (g/mol) | 412.70 |
| ChEBI | CHEBI:28824 |
| MDL Number | MFCD00003630 |
| SMILES | CC[C@H](\C=C\[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)C(C)C |
| Synonym | stigmasterol,stigmasterin,beta-stigmasterol,stigmasta-5,22-dien-3beta-ol,24s-5,22-stigmastadien-3beta-ol,unii-99wuk5d0y8,stigmasta-5,22e-dien-3beta-ol,stigmasta-5,22-dien-3-beta-ol,3beta,22e-stigmasta-5,22-dien-3-ol,stigmasta-5,22-dien-3-ol, 3b,22e |
| IUPAC Name | (1R,3aS,3bS,7S,9aR,9bS,11aR)-1-[(2R,3E,5S)-5-ethyl-6-methylhept-3-en-2-yl]-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-ol |
| InChI Key | HCXVJBMSMIARIN-PHZDYDNGSA-N |
| Molecular Formula | C29H48O |
1,2-Diaminopropane-N,N,N',N'-tetraacetic Acid 98.0+%, TCI America™
CAS: 4408-81-5 Molecular Formula: C11H18N2O8 Molecular Weight (g/mol): 306.271 MDL Number: MFCD00004286 InChI Key: XNCSCQSQSGDGES-UHFFFAOYSA-N Synonym: pdta,1,2-diaminopropane-n,n,n',n'-tetraacetic acid,medta,1,2-diaminopropanetetraacetic acid,propylenediamine tetra-acetic acid,propanoldiaminetetracetic acid,acetic acid, propylenedinitrilo tetra,ccris 1250,1,2-propylenediamine tetraacetic acid,propane-1,2-dinitrilotetraacetic acid PubChem CID: 20442 IUPAC Name: 2-[2-[bis(carboxymethyl)amino]propyl-(carboxymethyl)amino]acetic acid SMILES: CC(CN(CC(=O)O)CC(=O)O)N(CC(=O)O)CC(=O)O
| PubChem CID | 20442 |
|---|---|
| CAS | 4408-81-5 |
| Molecular Weight (g/mol) | 306.271 |
| MDL Number | MFCD00004286 |
| SMILES | CC(CN(CC(=O)O)CC(=O)O)N(CC(=O)O)CC(=O)O |
| Synonym | pdta,1,2-diaminopropane-n,n,n',n'-tetraacetic acid,medta,1,2-diaminopropanetetraacetic acid,propylenediamine tetra-acetic acid,propanoldiaminetetracetic acid,acetic acid, propylenedinitrilo tetra,ccris 1250,1,2-propylenediamine tetraacetic acid,propane-1,2-dinitrilotetraacetic acid |
| IUPAC Name | 2-[2-[bis(carboxymethyl)amino]propyl-(carboxymethyl)amino]acetic acid |
| InChI Key | XNCSCQSQSGDGES-UHFFFAOYSA-N |
| Molecular Formula | C11H18N2O8 |
Ethyl 2-Amino-4-methylthiophene-3-carboxylate 98.0+%, TCI America™
CAS: 43088-42-2 Molecular Formula: C8H11NO2S Molecular Weight (g/mol): 185.241 MDL Number: MFCD00051669 InChI Key: ILYCZKOBLRJJSW-UHFFFAOYSA-N Synonym: 2-amino-4-methylthiophene-3-carboxylic acid ethyl ester,2-amino-4-methyl-thiophene-3-carboxylic acid ethyl ester,3-thiophenecarboxylic acid, 2-amino-4-methyl-, ethyl ester,ethyl2-amino-4-methylthiophene-3-carboxylate,ethyl 2-amino-4-methyl-3-thiophenecarboxylate,acmc-20a9ux,maybridge1_003755,2-amino-4-methyl-3-ethoxycarbonyl-thiophene,ethyl 2-amino4-methylthiophene-3-carboxylate,2-amino-3-ethoxycarbonyl-4-methylthiophene PubChem CID: 521132 IUPAC Name: ethyl 2-amino-4-methylthiophene-3-carboxylate SMILES: CCOC(=O)C1=C(SC=C1C)N
| PubChem CID | 521132 |
|---|---|
| CAS | 43088-42-2 |
| Molecular Weight (g/mol) | 185.241 |
| MDL Number | MFCD00051669 |
| SMILES | CCOC(=O)C1=C(SC=C1C)N |
| Synonym | 2-amino-4-methylthiophene-3-carboxylic acid ethyl ester,2-amino-4-methyl-thiophene-3-carboxylic acid ethyl ester,3-thiophenecarboxylic acid, 2-amino-4-methyl-, ethyl ester,ethyl2-amino-4-methylthiophene-3-carboxylate,ethyl 2-amino-4-methyl-3-thiophenecarboxylate,acmc-20a9ux,maybridge1_003755,2-amino-4-methyl-3-ethoxycarbonyl-thiophene,ethyl 2-amino4-methylthiophene-3-carboxylate,2-amino-3-ethoxycarbonyl-4-methylthiophene |
| IUPAC Name | ethyl 2-amino-4-methylthiophene-3-carboxylate |
| InChI Key | ILYCZKOBLRJJSW-UHFFFAOYSA-N |
| Molecular Formula | C8H11NO2S |
1-Methyl-5-(trifluoromethyl)pyrazole-4-carboxylic Acid 98.0+%, TCI America™
CAS: 119083-00-0 Molecular Formula: C6H5F3N2O2 Molecular Weight (g/mol): 194.113 MDL Number: MFCD04110182 InChI Key: VAKOSNKAXYJZRG-UHFFFAOYSA-N PubChem CID: 2807771 IUPAC Name: 1-methyl-5-(trifluoromethyl)pyrazole-4-carboxylic acid SMILES: CN1C(=C(C=N1)C(=O)O)C(F)(F)F
| PubChem CID | 2807771 |
|---|---|
| CAS | 119083-00-0 |
| Molecular Weight (g/mol) | 194.113 |
| MDL Number | MFCD04110182 |
| SMILES | CN1C(=C(C=N1)C(=O)O)C(F)(F)F |
| IUPAC Name | 1-methyl-5-(trifluoromethyl)pyrazole-4-carboxylic acid |
| InChI Key | VAKOSNKAXYJZRG-UHFFFAOYSA-N |
| Molecular Formula | C6H5F3N2O2 |
Ethyl 2-(Ethoxymethylene)-2-cyanoacetate 98.0+%, TCI America™
CAS: 94-05-3 Molecular Formula: C8H11NO3 Molecular Weight (g/mol): 169.18 MDL Number: MFCD00009136 InChI Key: KTMGNAIGXYODKQ-SREVYHEPSA-N Synonym: ethyl ethoxymethylene cyanoacetate,e-ethyl 2-cyano-3-ethoxyacrylate,ethyl 2-cyano-3-ethoxyacrylate,ethyl 3-ethoxy-2-cyanoacrylate,ethyl 2e-2-cyano-3-ethoxyprop-2-enoate,ethyl cyano ethoxymethylene acetate,2-propenoic acid, 2-cyano-3-ethoxy-, ethyl ester,2-cyano-3-ethoxy-2-propenoic acid ethyl ester,2-cyano-3-ethoxyacrylic acid ethyl ester,ethyl 2e-2-cyano-3-ethoxy-2-propenoate PubChem CID: 1715183 IUPAC Name: ethyl (2Z)-2-cyano-3-ethoxyprop-2-enoate SMILES: CCO\C=C(\C#N)C(=O)OCC
| PubChem CID | 1715183 |
|---|---|
| CAS | 94-05-3 |
| Molecular Weight (g/mol) | 169.18 |
| MDL Number | MFCD00009136 |
| SMILES | CCO\C=C(\C#N)C(=O)OCC |
| Synonym | ethyl ethoxymethylene cyanoacetate,e-ethyl 2-cyano-3-ethoxyacrylate,ethyl 2-cyano-3-ethoxyacrylate,ethyl 3-ethoxy-2-cyanoacrylate,ethyl 2e-2-cyano-3-ethoxyprop-2-enoate,ethyl cyano ethoxymethylene acetate,2-propenoic acid, 2-cyano-3-ethoxy-, ethyl ester,2-cyano-3-ethoxy-2-propenoic acid ethyl ester,2-cyano-3-ethoxyacrylic acid ethyl ester,ethyl 2e-2-cyano-3-ethoxy-2-propenoate |
| IUPAC Name | ethyl (2Z)-2-cyano-3-ethoxyprop-2-enoate |
| InChI Key | KTMGNAIGXYODKQ-SREVYHEPSA-N |
| Molecular Formula | C8H11NO3 |
4-Bromoantipyrine 98.0+%, TCI America™
CAS: 5426-65-3 Molecular Formula: C11H11BrN2O Molecular Weight (g/mol): 267.126 MDL Number: MFCD00020779 InChI Key: QYWWSDVPNCBSIA-UHFFFAOYSA-N PubChem CID: 95032 IUPAC Name: 4-bromo-1,5-dimethyl-2-phenylpyrazol-3-one SMILES: CC1=C(C(=O)N(N1C)C2=CC=CC=C2)Br
| PubChem CID | 95032 |
|---|---|
| CAS | 5426-65-3 |
| Molecular Weight (g/mol) | 267.126 |
| MDL Number | MFCD00020779 |
| SMILES | CC1=C(C(=O)N(N1C)C2=CC=CC=C2)Br |
| IUPAC Name | 4-bromo-1,5-dimethyl-2-phenylpyrazol-3-one |
| InChI Key | QYWWSDVPNCBSIA-UHFFFAOYSA-N |
| Molecular Formula | C11H11BrN2O |
7-Fluoro-4-hydroxyquinazoline 98.0+%, TCI America™
CAS: 16499-57-3 Molecular Formula: C8H5FN2O Molecular Weight (g/mol): 164.139 MDL Number: MFCD05664874 InChI Key: KCORZHJVTZIZFD-UHFFFAOYSA-N Synonym: 7-Fluoro-4-quinazolinone, 7-Fluoro-4-quinazolinol PubChem CID: 7018323 IUPAC Name: 7-fluoro-1H-quinazolin-4-one SMILES: C1=CC2=C(C=C1F)NC=NC2=O
| PubChem CID | 7018323 |
|---|---|
| CAS | 16499-57-3 |
| Molecular Weight (g/mol) | 164.139 |
| MDL Number | MFCD05664874 |
| SMILES | C1=CC2=C(C=C1F)NC=NC2=O |
| Synonym | 7-Fluoro-4-quinazolinone, 7-Fluoro-4-quinazolinol |
| IUPAC Name | 7-fluoro-1H-quinazolin-4-one |
| InChI Key | KCORZHJVTZIZFD-UHFFFAOYSA-N |
| Molecular Formula | C8H5FN2O |