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Thiophenes

Organic heterocyclic compounds that consist of a five-membered ring with four carbon atoms, and one sulfur atom.
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Physical Form 
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Molecular Weight (g/mol)

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Keyword Search:
1 – 15 of 123 results
1

4-Chlorobenzo[b]thiophene-2-carboxylic acid, 97%

CAS: 23967-57-9 Molecular Formula: C9H5ClO2S Molecular Weight (g/mol): 212.647 MDL Number: MFCD06655155 InChI Key: IPAXPERGAMNMIJ-UHFFFAOYSA-N Synonym: 4-chlorobenzo b thiophene-2-carboxylic acid,4-chloro-benzo b thiophene-2-carboxylic acid,benzo b thiophene-2-carboxylic acid, 4-chloro,4-chloro benzo b thiophene-2-carboxylic acid,4-chlorobenzothiophene-2-carboxylate,4-chlorobenzothiophene-2-carboxylic acid,2-carboxy-4-chlorobenzo b thiophene,4-chloro-2-benzo b thiophenecarboxylic acid PubChem CID: 3854516 IUPAC Name: 4-chloro-1-benzothiophene-2-carboxylic acid SMILES: C1=CC2=C(C=C(S2)C(=O)O)C(=C1)Cl

PubChem CID 3854516
CAS 23967-57-9
Molecular Weight (g/mol) 212.647
MDL Number MFCD06655155
SMILES C1=CC2=C(C=C(S2)C(=O)O)C(=C1)Cl
Synonym 4-chlorobenzo b thiophene-2-carboxylic acid,4-chloro-benzo b thiophene-2-carboxylic acid,benzo b thiophene-2-carboxylic acid, 4-chloro,4-chloro benzo b thiophene-2-carboxylic acid,4-chlorobenzothiophene-2-carboxylate,4-chlorobenzothiophene-2-carboxylic acid,2-carboxy-4-chlorobenzo b thiophene,4-chloro-2-benzo b thiophenecarboxylic acid
IUPAC Name 4-chloro-1-benzothiophene-2-carboxylic acid
InChI Key IPAXPERGAMNMIJ-UHFFFAOYSA-N
Molecular Formula C9H5ClO2S
2

Benzo[b]thiophene-3-carboxylic acid, 96%

CAS: 5381-25-9 Molecular Formula: C9H6O2S Molecular Weight (g/mol): 178.205 MDL Number: MFCD01846406 InChI Key: DRBLTQNCQJXSNU-UHFFFAOYSA-N Synonym: benzo b thiophene-3-carboxylic acid,benzothiophene-3-carboxylic acid,benzothiophene-3-carboxylicacid,pubchem13463,acmc-20a10z,ksc178m8d,1-benzo b thiophene-3-carboxylic acid,#,thianaphthene-3-carboxylic acid PubChem CID: 601280 IUPAC Name: 1-benzothiophene-3-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=CS2)C(=O)O

PubChem CID 601280
CAS 5381-25-9
Molecular Weight (g/mol) 178.205
MDL Number MFCD01846406
SMILES C1=CC=C2C(=C1)C(=CS2)C(=O)O
Synonym benzo b thiophene-3-carboxylic acid,benzothiophene-3-carboxylic acid,benzothiophene-3-carboxylicacid,pubchem13463,acmc-20a10z,ksc178m8d,1-benzo b thiophene-3-carboxylic acid,#,thianaphthene-3-carboxylic acid
IUPAC Name 1-benzothiophene-3-carboxylic acid
InChI Key DRBLTQNCQJXSNU-UHFFFAOYSA-N
Molecular Formula C9H6O2S
3

2,5-Dibromo-3,4-dinitrothiophene, 95%

CAS: 52431-30-8 Molecular Formula: C4Br2N2O4S Molecular Weight (g/mol): 331.92 MDL Number: MFCD00015537 InChI Key: AHGHPBPARMANQD-UHFFFAOYSA-N Synonym: 2,5-dibromo-3,4-dinitro-thiophene,thiophene, 2,5-dibromo-3,4-dinitro,acmc-1apgk,ksc491i5j,2,5-dibromo-3,4-dinitrothiophene gc PubChem CID: 257024 IUPAC Name: 2,5-dibromo-3,4-dinitrothiophene SMILES: [O-][N+](=O)C1=C(Br)SC(Br)=C1[N+]([O-])=O

PubChem CID 257024
CAS 52431-30-8
Molecular Weight (g/mol) 331.92
MDL Number MFCD00015537
SMILES [O-][N+](=O)C1=C(Br)SC(Br)=C1[N+]([O-])=O
Synonym 2,5-dibromo-3,4-dinitro-thiophene,thiophene, 2,5-dibromo-3,4-dinitro,acmc-1apgk,ksc491i5j,2,5-dibromo-3,4-dinitrothiophene gc
IUPAC Name 2,5-dibromo-3,4-dinitrothiophene
InChI Key AHGHPBPARMANQD-UHFFFAOYSA-N
Molecular Formula C4Br2N2O4S
4

5-Chloro-4-nitrothiophene-2-sulfonyl chloride, 98%

CAS: 58457-24-2 Molecular Formula: C4HCl2NO4S2 Molecular Weight (g/mol): 262.075 MDL Number: MFCD00067978 InChI Key: SGHAHFHTASPNKN-UHFFFAOYSA-N Synonym: 2-chloro-3-nitrothiophene-5-sulphonyl chloride,2-chloro-3-nitrothiophene-5-sulfonyl chloride,5-chloro-4-nitro-thiophene-2-sulfonyl chloride,chloro 5-chloro-4-nitro 2-thienyl sulfone,pubchem5498,5-chloro-4-nitrothiophene-2-sulfonylchloride,acmc-20am48,2-chlorosulphonyl-4-nitro-5-chlorothiophene,5-chloro-4-nitro-2-thienylsulfonyl chloride PubChem CID: 2735783 IUPAC Name: 5-chloro-4-nitrothiophene-2-sulfonyl chloride SMILES: C1=C(SC(=C1[N+](=O)[O-])Cl)S(=O)(=O)Cl

PubChem CID 2735783
CAS 58457-24-2
Molecular Weight (g/mol) 262.075
MDL Number MFCD00067978
SMILES C1=C(SC(=C1[N+](=O)[O-])Cl)S(=O)(=O)Cl
Synonym 2-chloro-3-nitrothiophene-5-sulphonyl chloride,2-chloro-3-nitrothiophene-5-sulfonyl chloride,5-chloro-4-nitro-thiophene-2-sulfonyl chloride,chloro 5-chloro-4-nitro 2-thienyl sulfone,pubchem5498,5-chloro-4-nitrothiophene-2-sulfonylchloride,acmc-20am48,2-chlorosulphonyl-4-nitro-5-chlorothiophene,5-chloro-4-nitro-2-thienylsulfonyl chloride
IUPAC Name 5-chloro-4-nitrothiophene-2-sulfonyl chloride
InChI Key SGHAHFHTASPNKN-UHFFFAOYSA-N
Molecular Formula C4HCl2NO4S2
5

3-Chlorobenzo[b]thiophene-2-carboxylic acid, 97%

CAS: 21211-22-3 Molecular Formula: C9H5ClO2S Molecular Weight (g/mol): 212.647 MDL Number: MFCD00014579 InChI Key: HJTMIYKPPPYDRJ-UHFFFAOYSA-N Synonym: 3-chlorobenzo b thiophene-2-carboxylic acid,3-chloro-benzo b thiophene-2-carboxylic acid,3-chloro-benzo b thiophene-2-carboxylicacid,benzo b thiophene-2-carboxylic acid, 3-chloro,3-chlorobenzothiophene-2-carboxylic acid,pubchem18541,3-chloro-benzo b thiophene carboxylic acid,acmc-1coc0,cbmicro_009255 PubChem CID: 307964 IUPAC Name: 3-chloro-1-benzothiophene-2-carboxylic acid SMILES: C1=CC=C2C(=C1)C(=C(S2)C(=O)O)Cl

PubChem CID 307964
CAS 21211-22-3
Molecular Weight (g/mol) 212.647
MDL Number MFCD00014579
SMILES C1=CC=C2C(=C1)C(=C(S2)C(=O)O)Cl
Synonym 3-chlorobenzo b thiophene-2-carboxylic acid,3-chloro-benzo b thiophene-2-carboxylic acid,3-chloro-benzo b thiophene-2-carboxylicacid,benzo b thiophene-2-carboxylic acid, 3-chloro,3-chlorobenzothiophene-2-carboxylic acid,pubchem18541,3-chloro-benzo b thiophene carboxylic acid,acmc-1coc0,cbmicro_009255
IUPAC Name 3-chloro-1-benzothiophene-2-carboxylic acid
InChI Key HJTMIYKPPPYDRJ-UHFFFAOYSA-N
Molecular Formula C9H5ClO2S
6

5-Formylthiophene-2-boronic acid, 97%

CAS: 4347-33-5 Molecular Formula: C5H5BO3S Molecular Weight (g/mol): 155.96 MDL Number: MFCD02093666 InChI Key: DEQOVKFWRPOPQP-UHFFFAOYSA-N Synonym: 5-formyl-2-thiopheneboronic acid,5-formylthiophen-2-boronic acid,5-formylthiophen-2-yl boronic acid,5-formylthiophene-2-boronic acid,2-formylthiophene-5-boronic acid,5-formylthienyl-2-boronic acid,5-formyl-2-thienyl boronic acid,boronic acid, 5-formyl-2-thienyl,5-formyl-2-thiopheneboronicacid,pubchem1722 PubChem CID: 2773430 IUPAC Name: (5-formylthiophen-2-yl)boronic acid SMILES: OB(O)C1=CC=C(S1)C=O

PubChem CID 2773430
CAS 4347-33-5
Molecular Weight (g/mol) 155.96
MDL Number MFCD02093666
SMILES OB(O)C1=CC=C(S1)C=O
Synonym 5-formyl-2-thiopheneboronic acid,5-formylthiophen-2-boronic acid,5-formylthiophen-2-yl boronic acid,5-formylthiophene-2-boronic acid,2-formylthiophene-5-boronic acid,5-formylthienyl-2-boronic acid,5-formyl-2-thienyl boronic acid,boronic acid, 5-formyl-2-thienyl,5-formyl-2-thiopheneboronicacid,pubchem1722
IUPAC Name (5-formylthiophen-2-yl)boronic acid
InChI Key DEQOVKFWRPOPQP-UHFFFAOYSA-N
Molecular Formula C5H5BO3S
7

Methyl 4,5-dibromothiophene-2-carboxylate, 97%

CAS: 62224-24-2 Molecular Formula: C6H4Br2O2S Molecular Weight (g/mol): 299.964 MDL Number: MFCD00831688 InChI Key: URPMSPAEAVFKCO-UHFFFAOYSA-N Synonym: methyl 4,5-dibromo-2-thiophenecarboxylate,4,5-dibromothiophene-2-carboxylic acid methyl ester,maybridge3_005092,methyldibromothiophenecarboxylate,methyl 4,5-dibromo-2-thiophencarboxylate,methyl 4, 5-dibromothiophene-2-carboxylate,4,5-dibromo-thiophene-2-carboxylic acid methyl ester PubChem CID: 2727707 IUPAC Name: methyl 4,5-dibromothiophene-2-carboxylate SMILES: COC(=O)C1=CC(=C(S1)Br)Br

PubChem CID 2727707
CAS 62224-24-2
Molecular Weight (g/mol) 299.964
MDL Number MFCD00831688
SMILES COC(=O)C1=CC(=C(S1)Br)Br
Synonym methyl 4,5-dibromo-2-thiophenecarboxylate,4,5-dibromothiophene-2-carboxylic acid methyl ester,maybridge3_005092,methyldibromothiophenecarboxylate,methyl 4,5-dibromo-2-thiophencarboxylate,methyl 4, 5-dibromothiophene-2-carboxylate,4,5-dibromo-thiophene-2-carboxylic acid methyl ester
IUPAC Name methyl 4,5-dibromothiophene-2-carboxylate
InChI Key URPMSPAEAVFKCO-UHFFFAOYSA-N
Molecular Formula C6H4Br2O2S
8

2,5-Dibromo-3-methylthiophene, 98%

CAS: 13191-36-1 Molecular Formula: C5H4Br2S Molecular Weight (g/mol): 255.955 MDL Number: MFCD00015470 InChI Key: IHFXZROPBCBLLG-UHFFFAOYSA-N Synonym: thiophene, 2,5-dibromo-3-methyl,2,5-dibromo-3-methyl-thiophene,acmc-1bt3y,2-p-nitrophenylthio ethanol,2,5-dibrom-3-methylthiophen,3-methyl-2,5-dibromothiophene,2,5-dibromo-3-methylthiophene PubChem CID: 83219 IUPAC Name: 2,5-dibromo-3-methylthiophene SMILES: CC1=C(SC(=C1)Br)Br

PubChem CID 83219
CAS 13191-36-1
Molecular Weight (g/mol) 255.955
MDL Number MFCD00015470
SMILES CC1=C(SC(=C1)Br)Br
Synonym thiophene, 2,5-dibromo-3-methyl,2,5-dibromo-3-methyl-thiophene,acmc-1bt3y,2-p-nitrophenylthio ethanol,2,5-dibrom-3-methylthiophen,3-methyl-2,5-dibromothiophene,2,5-dibromo-3-methylthiophene
IUPAC Name 2,5-dibromo-3-methylthiophene
InChI Key IHFXZROPBCBLLG-UHFFFAOYSA-N
Molecular Formula C5H4Br2S
9

5-(4-Methoxyphenyl)thiophene-2-carboxaldehyde, 99%

CAS: 38401-67-1 Molecular Formula: C12H10O2S Molecular Weight (g/mol): 218.27 MDL Number: MFCD00663639 InChI Key: ODLOZSNXTQAWGQ-UHFFFAOYSA-N Synonym: 5-4-methoxyphenyl thiophene-2-carbaldehyde,5-4-methoxyphenyl thiophene-2-carboxaldehyde,5-4-methoxyphenyl-2-thiophenecarbaldehyde,acmc-1ahp9,rarechem ak ma k025,methoxyphenylthiophenecarbaldehyde,2-formyl-5-4-methoxyphenyl thiophene,5-4-methoxylphenyl thiophene-2-carbaldehyde,5-4-methoxyphenyl-2-thiophenecarboxaldehyde,5-4-methoxy-phenyl-thiophene-2-carbaldehyde PubChem CID: 2797800 IUPAC Name: 5-(4-methoxyphenyl)thiophene-2-carbaldehyde SMILES: COC1=CC=C(C=C1)C1=CC=C(S1)C=O

PubChem CID 2797800
CAS 38401-67-1
Molecular Weight (g/mol) 218.27
MDL Number MFCD00663639
SMILES COC1=CC=C(C=C1)C1=CC=C(S1)C=O
Synonym 5-4-methoxyphenyl thiophene-2-carbaldehyde,5-4-methoxyphenyl thiophene-2-carboxaldehyde,5-4-methoxyphenyl-2-thiophenecarbaldehyde,acmc-1ahp9,rarechem ak ma k025,methoxyphenylthiophenecarbaldehyde,2-formyl-5-4-methoxyphenyl thiophene,5-4-methoxylphenyl thiophene-2-carbaldehyde,5-4-methoxyphenyl-2-thiophenecarboxaldehyde,5-4-methoxy-phenyl-thiophene-2-carbaldehyde
IUPAC Name 5-(4-methoxyphenyl)thiophene-2-carbaldehyde
InChI Key ODLOZSNXTQAWGQ-UHFFFAOYSA-N
Molecular Formula C12H10O2S
10

Benzo[b]thiophene-2-carboxylic acid, 98%

CAS: 6314-28-9 Molecular Formula: C9H6O2S Molecular Weight (g/mol): 178.21 MDL Number: MFCD00051636 InChI Key: DYSJMQABFPKAQM-UHFFFAOYSA-N Synonym: benzo b thiophene-2-carboxylic acid,thianaphthene-2-carboxylic acid,thionaphthene-2-carboxylic acid,tnca,benzothiophene-2-carboxylic acid,2-benzo b thiophenecarboxylic acid,unii-hlr49221fq,thionapthene-2-carboxylic acid,thianaphthene-2-carboxylicacid PubChem CID: 95864 IUPAC Name: 1-benzothiophene-2-carboxylic acid SMILES: OC(=O)C1=CC2=CC=CC=C2S1

PubChem CID 95864
CAS 6314-28-9
Molecular Weight (g/mol) 178.21
MDL Number MFCD00051636
SMILES OC(=O)C1=CC2=CC=CC=C2S1
Synonym benzo b thiophene-2-carboxylic acid,thianaphthene-2-carboxylic acid,thionaphthene-2-carboxylic acid,tnca,benzothiophene-2-carboxylic acid,2-benzo b thiophenecarboxylic acid,unii-hlr49221fq,thionapthene-2-carboxylic acid,thianaphthene-2-carboxylicacid
IUPAC Name 1-benzothiophene-2-carboxylic acid
InChI Key DYSJMQABFPKAQM-UHFFFAOYSA-N
Molecular Formula C9H6O2S
11

5-Nitrothiophene-2-carboxylic acid, 98%

CAS: 6317-37-9 Molecular Formula: C5H3NO4S Molecular Weight (g/mol): 173.142 MDL Number: MFCD00159552 InChI Key: UNEPVPOHGXLUIR-UHFFFAOYSA-N Synonym: 5-nitrothiophene-2-carboxylic acid,5-nitro-2-thiophenecarboxylic acid,5-nitro-2-thenoic acid,5-nitrothiophene-2-carboxylicacid,5-nitro-thiophene-2-carboxylic acid,2-thiophenecarboxylic acid, 5-nitro,2-carboxy-5-nitrothiophene,pubchem5568,acmc-1b47f,5-nitrothiophene-2-carboxylic PubChem CID: 80591 SMILES: C1=C(SC(=C1)[N+](=O)[O-])C(=O)O

PubChem CID 80591
CAS 6317-37-9
Molecular Weight (g/mol) 173.142
MDL Number MFCD00159552
SMILES C1=C(SC(=C1)[N+](=O)[O-])C(=O)O
Synonym 5-nitrothiophene-2-carboxylic acid,5-nitro-2-thiophenecarboxylic acid,5-nitro-2-thenoic acid,5-nitrothiophene-2-carboxylicacid,5-nitro-thiophene-2-carboxylic acid,2-thiophenecarboxylic acid, 5-nitro,2-carboxy-5-nitrothiophene,pubchem5568,acmc-1b47f,5-nitrothiophene-2-carboxylic
InChI Key UNEPVPOHGXLUIR-UHFFFAOYSA-N
Molecular Formula C5H3NO4S
12

3-Bromo-2,5-dichlorothiophene, 97%

CAS: 60404-18-4 Molecular Formula: C4HBrCl2S Molecular Weight (g/mol): 231.92 MDL Number: MFCD00041440 InChI Key: PBUHOXBSIQJRNO-UHFFFAOYSA-N PubChem CID: 521925 IUPAC Name: 3-bromo-2,5-dichlorothiophene SMILES: ClC1=CC(Br)=C(Cl)S1

PubChem CID 521925
CAS 60404-18-4
Molecular Weight (g/mol) 231.92
MDL Number MFCD00041440
SMILES ClC1=CC(Br)=C(Cl)S1
IUPAC Name 3-bromo-2,5-dichlorothiophene
InChI Key PBUHOXBSIQJRNO-UHFFFAOYSA-N
Molecular Formula C4HBrCl2S
13

5-Bromothiophene-2-carboxylic acid, 98%

CAS: 7311-63-9 Molecular Formula: C5H2BrO2S Molecular Weight (g/mol): 206.03 MDL Number: MFCD00079725 InChI Key: COWZPSUDTMGBAT-UHFFFAOYSA-M Synonym: 5-bromo-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-bromo,2-bromo-5-carboxythiophene,2-bromothiophene-5-carboxylic acid,5-bromo-thiophene-2-carboxylic acid,5-bromothiophene-2-carboxylicacid,zlchem 973,pubchem7368,acmc-209opm,maybridge1_002056 PubChem CID: 349115 IUPAC Name: 5-bromothiophene-2-carboxylic acid SMILES: [O-]C(=O)C1=CC=C(Br)S1

PubChem CID 349115
CAS 7311-63-9
Molecular Weight (g/mol) 206.03
MDL Number MFCD00079725
SMILES [O-]C(=O)C1=CC=C(Br)S1
Synonym 5-bromo-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-bromo,2-bromo-5-carboxythiophene,2-bromothiophene-5-carboxylic acid,5-bromo-thiophene-2-carboxylic acid,5-bromothiophene-2-carboxylicacid,zlchem 973,pubchem7368,acmc-209opm,maybridge1_002056
IUPAC Name 5-bromothiophene-2-carboxylic acid
InChI Key COWZPSUDTMGBAT-UHFFFAOYSA-M
Molecular Formula C5H2BrO2S
14

5-Bromothiophene-2-carboxylic acid hydrazide, 97%

CAS: 98027-27-1 Molecular Formula: C5H5BrN2OS Molecular Weight (g/mol): 221.07 MDL Number: MFCD01310798 InChI Key: OFXZACLPQYOIAV-UHFFFAOYSA-N Synonym: 5-bromo-2-thiophenecarboxylic acid hydrazide,5-bromo-thiophene-2-carboxylic acid hydrazide,5-bromo-thiophene-2-carboxylic acidhydrazide,5-bromothiophene-2-carboxylic acid hydrazide,2-thiophenecarboxylic acid, 5-bromo-, hydrazide,pubchem16117,ksc488m6p,5-bromo-2-thiophenecarboxylic hydrazide,2-bromothiophene-5-carbohydrazide,2-thiophenecarboxylicacid, 5-bromo-, hydrazide PubChem CID: 2063863 IUPAC Name: 5-bromothiophene-2-carbohydrazide SMILES: NNC(=O)C1=CC=C(Br)S1

PubChem CID 2063863
CAS 98027-27-1
Molecular Weight (g/mol) 221.07
MDL Number MFCD01310798
SMILES NNC(=O)C1=CC=C(Br)S1
Synonym 5-bromo-2-thiophenecarboxylic acid hydrazide,5-bromo-thiophene-2-carboxylic acid hydrazide,5-bromo-thiophene-2-carboxylic acidhydrazide,5-bromothiophene-2-carboxylic acid hydrazide,2-thiophenecarboxylic acid, 5-bromo-, hydrazide,pubchem16117,ksc488m6p,5-bromo-2-thiophenecarboxylic hydrazide,2-bromothiophene-5-carbohydrazide,2-thiophenecarboxylicacid, 5-bromo-, hydrazide
IUPAC Name 5-bromothiophene-2-carbohydrazide
InChI Key OFXZACLPQYOIAV-UHFFFAOYSA-N
Molecular Formula C5H5BrN2OS
15

5-Methylthiophene-2-carboxylic acid, 98+%

CAS: 1918-79-2 Molecular Formula: C6H6O2S Molecular Weight (g/mol): 142.172 MDL Number: MFCD00005439 InChI Key: VCNGNQLPFHVODE-UHFFFAOYSA-N Synonym: 5-methyl-2-thiophenecarboxylic acid,5-methyl-2-thenoic acid,2-thiophenecarboxylic acid, 5-methyl,2-carboxy-5-methylthiophene,5-methly-2-thiophenecarboxylic acid,5-methyl-thiophene-2-carboxylic acid,5-methyl-2-thiophene carboxylic acid,5-methylthiophen-2-carboxylic acid,2-methyl-5-thiophenecarboxylic acid,pubchem5206 PubChem CID: 74713 IUPAC Name: 5-methylthiophene-2-carboxylic acid SMILES: CC1=CC=C(S1)C(=O)O

PubChem CID 74713
CAS 1918-79-2
Molecular Weight (g/mol) 142.172
MDL Number MFCD00005439
SMILES CC1=CC=C(S1)C(=O)O
Synonym 5-methyl-2-thiophenecarboxylic acid,5-methyl-2-thenoic acid,2-thiophenecarboxylic acid, 5-methyl,2-carboxy-5-methylthiophene,5-methly-2-thiophenecarboxylic acid,5-methyl-thiophene-2-carboxylic acid,5-methyl-2-thiophene carboxylic acid,5-methylthiophen-2-carboxylic acid,2-methyl-5-thiophenecarboxylic acid,pubchem5206
IUPAC Name 5-methylthiophene-2-carboxylic acid
InChI Key VCNGNQLPFHVODE-UHFFFAOYSA-N
Molecular Formula C6H6O2S