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Isoxazoles

Aromatic organic heterocyclic compounds that consist of an azole with a nitrogen atom and an oxygen atom with the formula: C3H3NO.
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Molecular Weight (g/mol)

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1 – 15 of 41 results
1

5-Methyl-3-phenylisoxazole-4-carboxylic acid, 99%

CAS: 1136-45-4 Molecular Formula: C11H9NO3 Molecular Weight (g/mol): 203.197 MDL Number: MFCD00003153 InChI Key: PENHKTNQUJMHIR-UHFFFAOYSA-N Synonym: 5-methyl-3-phenylisoxazole-4-carboxylic acid,4-isoxazolecarboxylic acid, 5-methyl-3-phenyl,5-methyl-3-phenyl-4-isoxazolecarboxylic acid,3-phenyl-5-methylisoxazol-4-carbonsaeure,3-phenyl-5-methylisoxazole-4-carboxylic acid,isoxazole-4-carboxylic acid, 5-methyl-3-phenyl,5-methyl-3-phenyl-isoxazole-4-carboxylic acid,5-methyl-3-phenylisoxazole-4-carboxylicacid,3-phenyl-5-methylisoxazol-4-carbonsaeure german,5-methyl-3-phenyl-4-isooxazolic acid PubChem CID: 14343 IUPAC Name: 5-methyl-3-phenyl-1,2-oxazole-4-carboxylic acid SMILES: CC1=C(C(=NO1)C2=CC=CC=C2)C(=O)O

PubChem CID 14343
CAS 1136-45-4
Molecular Weight (g/mol) 203.197
MDL Number MFCD00003153
SMILES CC1=C(C(=NO1)C2=CC=CC=C2)C(=O)O
Synonym 5-methyl-3-phenylisoxazole-4-carboxylic acid,4-isoxazolecarboxylic acid, 5-methyl-3-phenyl,5-methyl-3-phenyl-4-isoxazolecarboxylic acid,3-phenyl-5-methylisoxazol-4-carbonsaeure,3-phenyl-5-methylisoxazole-4-carboxylic acid,isoxazole-4-carboxylic acid, 5-methyl-3-phenyl,5-methyl-3-phenyl-isoxazole-4-carboxylic acid,5-methyl-3-phenylisoxazole-4-carboxylicacid,3-phenyl-5-methylisoxazol-4-carbonsaeure german,5-methyl-3-phenyl-4-isooxazolic acid
IUPAC Name 5-methyl-3-phenyl-1,2-oxazole-4-carboxylic acid
InChI Key PENHKTNQUJMHIR-UHFFFAOYSA-N
Molecular Formula C11H9NO3
2

Isoxazole-5-carboxylic acid, 98%

CAS: 21169-71-1 Molecular Formula: C4H3NO3 Molecular Weight (g/mol): 113.072 MDL Number: MFCD00156151 InChI Key: MIIQJAUWHSUTIT-UHFFFAOYSA-N Synonym: isoxazole-5-carboxylic acid,5-isoxazolecarboxylic acid,isoxazole-5-carboxylicacid,5-carboxyisoxazole,pubchem8643,isoxazole-5-carboxylic,5-carboxy-1,2-oxazole,isoxazole 5-carboxylic acid,ksc207s2h PubChem CID: 2060599 IUPAC Name: 1,2-oxazole-5-carboxylic acid SMILES: C1=C(ON=C1)C(=O)O

PubChem CID 2060599
CAS 21169-71-1
Molecular Weight (g/mol) 113.072
MDL Number MFCD00156151
SMILES C1=C(ON=C1)C(=O)O
Synonym isoxazole-5-carboxylic acid,5-isoxazolecarboxylic acid,isoxazole-5-carboxylicacid,5-carboxyisoxazole,pubchem8643,isoxazole-5-carboxylic,5-carboxy-1,2-oxazole,isoxazole 5-carboxylic acid,ksc207s2h
IUPAC Name 1,2-oxazole-5-carboxylic acid
InChI Key MIIQJAUWHSUTIT-UHFFFAOYSA-N
Molecular Formula C4H3NO3
3

3,5-Dimethylisoxazole-4-boronic acid, 97%

CAS: 16114-47-9 Molecular Formula: C5H8BNO3 Molecular Weight (g/mol): 140.933 MDL Number: MFCD02677945 InChI Key: DIIFZCPZIRQDIJ-UHFFFAOYSA-N Synonym: 3,5-dimethylisoxazole-4-boronic acid,3,5-dimethylisoxazol-4-yl boronic acid,3,5-dimethyl-4-isoxazolylboronic acid,3,5-dimethylisoxazol-4-ylboronic acid,3,5-dimethyl-1,2-oxazol-4-yl boronic acid,3,5-dimethylisoxazole-4-boronicacid,3,5-dimethyl-4-isoxazoleboronic acid,3,5-dimethylisoxazol-4-yl-4-boronic acid,3,5-dimethyl-isoxazole-4-boronic acid,dimethyl-1,2-oxazol-4-yl boronic acid PubChem CID: 2734346 IUPAC Name: (3,5-dimethyl-1,2-oxazol-4-yl)boronic acid SMILES: B(C1=C(ON=C1C)C)(O)O

PubChem CID 2734346
CAS 16114-47-9
Molecular Weight (g/mol) 140.933
MDL Number MFCD02677945
SMILES B(C1=C(ON=C1C)C)(O)O
Synonym 3,5-dimethylisoxazole-4-boronic acid,3,5-dimethylisoxazol-4-yl boronic acid,3,5-dimethyl-4-isoxazolylboronic acid,3,5-dimethylisoxazol-4-ylboronic acid,3,5-dimethyl-1,2-oxazol-4-yl boronic acid,3,5-dimethylisoxazole-4-boronicacid,3,5-dimethyl-4-isoxazoleboronic acid,3,5-dimethylisoxazol-4-yl-4-boronic acid,3,5-dimethyl-isoxazole-4-boronic acid,dimethyl-1,2-oxazol-4-yl boronic acid
IUPAC Name (3,5-dimethyl-1,2-oxazol-4-yl)boronic acid
InChI Key DIIFZCPZIRQDIJ-UHFFFAOYSA-N
Molecular Formula C5H8BNO3
4

1,2-Benzisoxazol-3(2H)-one, 96%

CAS: 21725-69-9 Molecular Formula: C7H5NO2 Molecular Weight (g/mol): 135.122 MDL Number: MFCD00125030 InChI Key: QLDQYRDCPNBPII-UHFFFAOYSA-N Synonym: benzo d isoxazol-3-ol,1,2-benzisoxazol-3 2h-one,1,2-benzoxazol-3-ol,1,2-benzisoxazol-3-ol,3-hydroxybenzisoxazole,3-hydroxy-1,2-benzisoxazole,1,2-benzisoxazolin-3-one,1,2-benzisoxazol-3-ol 8ci,2h-1,2-benzoxazol-3-one,benzisoxazolone PubChem CID: 210830 IUPAC Name: 1,2-benzoxazol-3-one SMILES: C1=CC=C2C(=C1)C(=O)NO2

PubChem CID 210830
CAS 21725-69-9
Molecular Weight (g/mol) 135.122
MDL Number MFCD00125030
SMILES C1=CC=C2C(=C1)C(=O)NO2
Synonym benzo d isoxazol-3-ol,1,2-benzisoxazol-3 2h-one,1,2-benzoxazol-3-ol,1,2-benzisoxazol-3-ol,3-hydroxybenzisoxazole,3-hydroxy-1,2-benzisoxazole,1,2-benzisoxazolin-3-one,1,2-benzisoxazol-3-ol 8ci,2h-1,2-benzoxazol-3-one,benzisoxazolone
IUPAC Name 1,2-benzoxazol-3-one
InChI Key QLDQYRDCPNBPII-UHFFFAOYSA-N
Molecular Formula C7H5NO2
5

3,5-Dimethylisoxazole-4-carboxylic acid, 99%

CAS: 2510-36-3 Molecular Formula: C6H7NO3 Molecular Weight (g/mol): 141.126 MDL Number: MFCD00051657 InChI Key: IJEUISLJVBUNRE-UHFFFAOYSA-N Synonym: 3,5-dimethylisoxazole-4-carboxylic acid,3,5-dimethylisoxasole-4-carboxylic acid,4-isoxazolecarboxylic acid, 3,5-dimethyl,dimethyl-1,2-oxazole-4-carboxylic acid,3,5-dimethyl-4-isoxazolecarboxylic acid,3,5-dimethyl-isoxazole-4-carboxylic acid,3,5-dimethylisoxazole-4-carboxylicacid,pubchem8774,akos pao-1555 PubChem CID: 75636 IUPAC Name: 3,5-dimethyl-1,2-oxazole-4-carboxylic acid SMILES: CC1=C(C(=NO1)C)C(=O)O

PubChem CID 75636
CAS 2510-36-3
Molecular Weight (g/mol) 141.126
MDL Number MFCD00051657
SMILES CC1=C(C(=NO1)C)C(=O)O
Synonym 3,5-dimethylisoxazole-4-carboxylic acid,3,5-dimethylisoxasole-4-carboxylic acid,4-isoxazolecarboxylic acid, 3,5-dimethyl,dimethyl-1,2-oxazole-4-carboxylic acid,3,5-dimethyl-4-isoxazolecarboxylic acid,3,5-dimethyl-isoxazole-4-carboxylic acid,3,5-dimethylisoxazole-4-carboxylicacid,pubchem8774,akos pao-1555
IUPAC Name 3,5-dimethyl-1,2-oxazole-4-carboxylic acid
InChI Key IJEUISLJVBUNRE-UHFFFAOYSA-N
Molecular Formula C6H7NO3
6

3-Methylisoxazole-5-carboxylic acid, 97%

CAS: 4857-42-5 Molecular Formula: C5H5NO3 Molecular Weight (g/mol): 127.099 MDL Number: MFCD00464222 InChI Key: HXIYCKAAQPHZBM-UHFFFAOYSA-N Synonym: 3-methylisoxazole-5-carboxylic acid,3-methyl-5-isoxazolecarboxylic acid,5-isoxazolecarboxylic acid, 3-methyl,3-methyl-isoxazole-5-carboxylic acid,5-carboxy-3-methylisoxazole,5-isoxazolecarboxylicacid, 3-methyl,3-methylisoxazole-5-carboxylicacid,acmc-1aruu,3-methyl-5-carboxyisoxazole,aronis24519 PubChem CID: 853085 IUPAC Name: 3-methyl-1,2-oxazole-5-carboxylic acid SMILES: CC1=NOC(=C1)C(=O)O

PubChem CID 853085
CAS 4857-42-5
Molecular Weight (g/mol) 127.099
MDL Number MFCD00464222
SMILES CC1=NOC(=C1)C(=O)O
Synonym 3-methylisoxazole-5-carboxylic acid,3-methyl-5-isoxazolecarboxylic acid,5-isoxazolecarboxylic acid, 3-methyl,3-methyl-isoxazole-5-carboxylic acid,5-carboxy-3-methylisoxazole,5-isoxazolecarboxylicacid, 3-methyl,3-methylisoxazole-5-carboxylicacid,acmc-1aruu,3-methyl-5-carboxyisoxazole,aronis24519
IUPAC Name 3-methyl-1,2-oxazole-5-carboxylic acid
InChI Key HXIYCKAAQPHZBM-UHFFFAOYSA-N
Molecular Formula C5H5NO3
7

3-Methylisoxazole-4-carboxylic acid, 98+%, Thermo Scientific Chemicals

CAS: 17153-20-7 Molecular Formula: C5H5NO3 Molecular Weight (g/mol): 127.099 MDL Number: MFCD01318161 InChI Key: YBLSBWHFPXDRHC-UHFFFAOYSA-N Synonym: 3-methylisoxazole-4-carboxylic acid,3-methyl-4-isoxazolecarboxylic acid,3-methyl-4-isoxazolecarboxylicacid,3-methyl-isoxazole-4-carboxylic acid,4-isoxazolecarboxylic acid, 3-methyl,3-methylisoxazole-4-carboxylicacid,pubchem10465,acmc-1c78i,3-methylisoxazole-s-carboxylic acid,4-isoxazolecarboxylicacid,3-methyl PubChem CID: 4589692 IUPAC Name: 3-methyl-1,2-oxazole-4-carboxylic acid SMILES: CC1=NOC=C1C(=O)O

PubChem CID 4589692
CAS 17153-20-7
Molecular Weight (g/mol) 127.099
MDL Number MFCD01318161
SMILES CC1=NOC=C1C(=O)O
Synonym 3-methylisoxazole-4-carboxylic acid,3-methyl-4-isoxazolecarboxylic acid,3-methyl-4-isoxazolecarboxylicacid,3-methyl-isoxazole-4-carboxylic acid,4-isoxazolecarboxylic acid, 3-methyl,3-methylisoxazole-4-carboxylicacid,pubchem10465,acmc-1c78i,3-methylisoxazole-s-carboxylic acid,4-isoxazolecarboxylicacid,3-methyl
IUPAC Name 3-methyl-1,2-oxazole-4-carboxylic acid
InChI Key YBLSBWHFPXDRHC-UHFFFAOYSA-N
Molecular Formula C5H5NO3
8

Isoxazole-3-carboxylic acid, 97%

CAS: 3209-71-0 Molecular Formula: C4H3NO3 Molecular Weight (g/mol): 113.07 MDL Number: MFCD06738796 InChI Key: UXYRXGFUANQKTA-UHFFFAOYSA-N Synonym: 3-isoxazolecarboxylic acid,isoxazole-3-carboxylic acid,isoxazole-3-carboxylicacid,3-isoxazolecarboxylicacid,3-carboxyisoxazole,isoxazole-3-carboxylic,pubchem12341,acmc-209hqw,ksc222a3r,aronis24546 PubChem CID: 11286453 IUPAC Name: 1,2-oxazole-3-carboxylic acid SMILES: OC(=O)C1=NOC=C1

PubChem CID 11286453
CAS 3209-71-0
Molecular Weight (g/mol) 113.07
MDL Number MFCD06738796
SMILES OC(=O)C1=NOC=C1
Synonym 3-isoxazolecarboxylic acid,isoxazole-3-carboxylic acid,isoxazole-3-carboxylicacid,3-isoxazolecarboxylicacid,3-carboxyisoxazole,isoxazole-3-carboxylic,pubchem12341,acmc-209hqw,ksc222a3r,aronis24546
IUPAC Name 1,2-oxazole-3-carboxylic acid
InChI Key UXYRXGFUANQKTA-UHFFFAOYSA-N
Molecular Formula C4H3NO3
9

Methyl 5-methylisoxazole-3-carboxylate, 97%

CAS: 19788-35-3 Molecular Formula: C6H7NO3 Molecular Weight (g/mol): 141.13 MDL Number: MFCD00015895 InChI Key: MVHHQOCEOUNTID-UHFFFAOYSA-N Synonym: methyl 5-methylisoxazole-3-carboxylate,methyl 5-methyl-3-isoxazolecarboxylate,3-isoxazolecarboxylic acid, 5-methyl-, methyl ester,5-methyl-3-isoxazolecarboxylic acid methyl ester,methyl 5-methyl-3-isoxazole carboxylate,methyl-5-methyl-3-isoxazole carboxylate,5-methylisoxazole-3-carboxylic acid methyl ester,5-methyl-isoxazole-3-carboxylic acid methyl ester,acmc-209xf5,ksc489s1r PubChem CID: 88245 IUPAC Name: methyl 5-methyl-1,2-oxazole-3-carboxylate SMILES: COC(=O)C1=NOC(C)=C1

PubChem CID 88245
CAS 19788-35-3
Molecular Weight (g/mol) 141.13
MDL Number MFCD00015895
SMILES COC(=O)C1=NOC(C)=C1
Synonym methyl 5-methylisoxazole-3-carboxylate,methyl 5-methyl-3-isoxazolecarboxylate,3-isoxazolecarboxylic acid, 5-methyl-, methyl ester,5-methyl-3-isoxazolecarboxylic acid methyl ester,methyl 5-methyl-3-isoxazole carboxylate,methyl-5-methyl-3-isoxazole carboxylate,5-methylisoxazole-3-carboxylic acid methyl ester,5-methyl-isoxazole-3-carboxylic acid methyl ester,acmc-209xf5,ksc489s1r
IUPAC Name methyl 5-methyl-1,2-oxazole-3-carboxylate
InChI Key MVHHQOCEOUNTID-UHFFFAOYSA-N
Molecular Formula C6H7NO3
10

5-Methylisoxazole-3-carbonyl chloride, 98%, Thermo Scientific Chemicals

CAS: 39499-34-8 Molecular Formula: C5H4ClNO2 Molecular Weight (g/mol): 145.54 MDL Number: MFCD00085127 InChI Key: XMVNMWDLOGSUSM-UHFFFAOYSA-N Synonym: 5-methylisoxazole-3-carbonyl chloride,3-isoxazolecarbonyl chloride, 5-methyl,5-methyl-3-isoxazolecarbonyl chloride,5-methyl-isoxazole-3-carbonyl chloride,acmc-209j5v,5-methyl-3-isoxazoyl chloride,5-methylisoxazole carbonyl chloride,5-methylisoxazol-3-ylcarbonyl chloride,3-isoxazolecarbonylchloride, 5-methyl,5-methyl isoxazole-3-carbonyl chloride PubChem CID: 2736894 IUPAC Name: 5-methyl-1,2-oxazole-3-carbonyl chloride SMILES: CC1=CC(=NO1)C(Cl)=O

PubChem CID 2736894
CAS 39499-34-8
Molecular Weight (g/mol) 145.54
MDL Number MFCD00085127
SMILES CC1=CC(=NO1)C(Cl)=O
Synonym 5-methylisoxazole-3-carbonyl chloride,3-isoxazolecarbonyl chloride, 5-methyl,5-methyl-3-isoxazolecarbonyl chloride,5-methyl-isoxazole-3-carbonyl chloride,acmc-209j5v,5-methyl-3-isoxazoyl chloride,5-methylisoxazole carbonyl chloride,5-methylisoxazol-3-ylcarbonyl chloride,3-isoxazolecarbonylchloride, 5-methyl,5-methyl isoxazole-3-carbonyl chloride
IUPAC Name 5-methyl-1,2-oxazole-3-carbonyl chloride
InChI Key XMVNMWDLOGSUSM-UHFFFAOYSA-N
Molecular Formula C5H4ClNO2
12

3,5-Dimethylisoxazole, 99%

CAS: 300-87-8 Molecular Formula: C5H7NO Molecular Weight (g/mol): 97.117 MDL Number: MFCD00003156 InChI Key: FICAQKBMCKEFDI-UHFFFAOYSA-N Synonym: 3,5-dimethylisoxazole,isoxazole, 3,5-dimethyl,3,5-dimethylisooxazole,3,5-dwumetyloizoksazolu,3,5-dwumetyloizoksazolu polish,3,5-dimethylisoxazol,pubchem8641,isoxazole,5-dimethyl,3,5-dimethyl-isoxazole PubChem CID: 9312 IUPAC Name: 3,5-dimethyl-1,2-oxazole SMILES: CC1=CC(=NO1)C

PubChem CID 9312
CAS 300-87-8
Molecular Weight (g/mol) 97.117
MDL Number MFCD00003156
SMILES CC1=CC(=NO1)C
Synonym 3,5-dimethylisoxazole,isoxazole, 3,5-dimethyl,3,5-dimethylisooxazole,3,5-dwumetyloizoksazolu,3,5-dwumetyloizoksazolu polish,3,5-dimethylisoxazol,pubchem8641,isoxazole,5-dimethyl,3,5-dimethyl-isoxazole
IUPAC Name 3,5-dimethyl-1,2-oxazole
InChI Key FICAQKBMCKEFDI-UHFFFAOYSA-N
Molecular Formula C5H7NO
13

Methyl isoxazole-5-carboxylate, 97%

CAS: 15055-81-9 Molecular Formula: C5H5NO3 Molecular Weight (g/mol): 127.099 MDL Number: MFCD01570794 InChI Key: ILPCPKZAAQXHKL-UHFFFAOYSA-N Synonym: methyl isoxazole-5-carboxylate,5-isoxazolecarboxylic acid, methyl ester,isoxazole-5-carboxylic acid methyl ester,acmc-209wih,methyl 5-isoxazolcarboxylate,methyl 5-isoxazolcarboxylate;,methylisoxazole-5-carboxylate,5-methoxycarbonyl-1,2-oxazol,5-isoxazol-carbonsaeure-methylester;,isoxazol-5-carbonsaeure-methylester; PubChem CID: 2736892 IUPAC Name: methyl 1,2-oxazole-5-carboxylate SMILES: COC(=O)C1=CC=NO1

PubChem CID 2736892
CAS 15055-81-9
Molecular Weight (g/mol) 127.099
MDL Number MFCD01570794
SMILES COC(=O)C1=CC=NO1
Synonym methyl isoxazole-5-carboxylate,5-isoxazolecarboxylic acid, methyl ester,isoxazole-5-carboxylic acid methyl ester,acmc-209wih,methyl 5-isoxazolcarboxylate,methyl 5-isoxazolcarboxylate;,methylisoxazole-5-carboxylate,5-methoxycarbonyl-1,2-oxazol,5-isoxazol-carbonsaeure-methylester;,isoxazol-5-carbonsaeure-methylester;
IUPAC Name methyl 1,2-oxazole-5-carboxylate
InChI Key ILPCPKZAAQXHKL-UHFFFAOYSA-N
Molecular Formula C5H5NO3
14

5-Amino-3,4-dimethylisoxazole, 99%

CAS: 19947-75-2 Molecular Formula: C5H8N2O Molecular Weight (g/mol): 112.132 MDL Number: MFCD00046081 InChI Key: PYNDWPFZDQONDV-UHFFFAOYSA-N Synonym: 5-amino-3,4-dimethylisoxazole,3,4-dimethylisoxazol-5-amine,5-amino-3,4-dimethyl-isoxazole,5-isoxazolamine, 3,4-dimethyl,dimethyl-1,2-oxazol-5-amine,3,4-dimethyl-5-isoxazolamine,5-amino-3,4-dimethyl isoxazole,3,4-dimethylisoxazole-5-ylamine,3,4-dimethylisoxazol-5-ylamine,pubchem8660 PubChem CID: 88317 IUPAC Name: 3,4-dimethyl-1,2-oxazol-5-amine SMILES: CC1=C(ON=C1C)N

PubChem CID 88317
CAS 19947-75-2
Molecular Weight (g/mol) 112.132
MDL Number MFCD00046081
SMILES CC1=C(ON=C1C)N
Synonym 5-amino-3,4-dimethylisoxazole,3,4-dimethylisoxazol-5-amine,5-amino-3,4-dimethyl-isoxazole,5-isoxazolamine, 3,4-dimethyl,dimethyl-1,2-oxazol-5-amine,3,4-dimethyl-5-isoxazolamine,5-amino-3,4-dimethyl isoxazole,3,4-dimethylisoxazole-5-ylamine,3,4-dimethylisoxazol-5-ylamine,pubchem8660
IUPAC Name 3,4-dimethyl-1,2-oxazol-5-amine
InChI Key PYNDWPFZDQONDV-UHFFFAOYSA-N
Molecular Formula C5H8N2O
15

3-Hydroxy-5-methylisoxazole, 97%

CAS: 10004-44-1 Molecular Formula: C4H5NO2 Molecular Weight (g/mol): 99.089 MDL Number: MFCD00144468 InChI Key: KGVPNLBXJKTABS-UHFFFAOYSA-N Synonym: hymexazol,3-hydroxy-5-methylisoxazole,hymexazole,5-methylisoxazol-3-ol,5-methylisoxazol-3 2h-one,hydroxyisoxazole,tachigaren,itachigarden,5-methyl-3-hydroxyisoxazole,5-methyl-3 2h-isoxazolone PubChem CID: 24781 ChEBI: CHEBI:5827 IUPAC Name: 5-methyl-1,2-oxazol-3-one SMILES: CC1=CC(=O)NO1

PubChem CID 24781
CAS 10004-44-1
Molecular Weight (g/mol) 99.089
ChEBI CHEBI:5827
MDL Number MFCD00144468
SMILES CC1=CC(=O)NO1
Synonym hymexazol,3-hydroxy-5-methylisoxazole,hymexazole,5-methylisoxazol-3-ol,5-methylisoxazol-3 2h-one,hydroxyisoxazole,tachigaren,itachigarden,5-methyl-3-hydroxyisoxazole,5-methyl-3 2h-isoxazolone
IUPAC Name 5-methyl-1,2-oxazol-3-one
InChI Key KGVPNLBXJKTABS-UHFFFAOYSA-N
Molecular Formula C4H5NO2