Thiophenes

Organic heterocyclic compounds that consist of a five-membered ring with four carbon atoms, and one sulfur atom.

1 – 15 of 265 results

2-Bromo-5-chlorothiophene, 97%

CAS: 2873-18-9 Molecular Formula: C4H2BrClS Molecular Weight (g/mol): 197.47 MDL Number: MFCD00014523 InChI Key: ZFAJPWYXLYGUJU-UHFFFAOYSA-N Synonym: 2-chloro-5-bromothiophene,5-bromo-2-chlorothiophene,2-chloro-5-bromo thiophene,thiophene, 2-bromo-5-chloro,2-brom-5-chlorthiophen,pubchem5279,acmc-1cs3j,2-bromo-5-chloro-thiophene,5-bromo-2-chloro-thiophene,ksc207m3t PubChem CID: 76133 IUPAC Name: 2-bromo-5-chlorothiophene SMILES: ClC1=CC=C(Br)S1

Pricing and Availability
Specifications

PubChem CID	76133
CAS	2873-18-9
Molecular Weight (g/mol)	197.47
MDL Number	MFCD00014523
SMILES	ClC1=CC=C(Br)S1
Synonym	2-chloro-5-bromothiophene,5-bromo-2-chlorothiophene,2-chloro-5-bromo thiophene,thiophene, 2-bromo-5-chloro,2-brom-5-chlorthiophen,pubchem5279,acmc-1cs3j,2-bromo-5-chloro-thiophene,5-bromo-2-chloro-thiophene,ksc207m3t
IUPAC Name	2-bromo-5-chlorothiophene
InChI Key	ZFAJPWYXLYGUJU-UHFFFAOYSA-N
Molecular Formula	C4H2BrClS

Thiophene-2-carboxylic acid, 99%

CAS: 527-72-0 Molecular Formula: C5H4O2S Molecular Weight (g/mol): 128.15 MDL Number: MFCD00005437 InChI Key: QERYCTSHXKAMIS-UHFFFAOYSA-N Synonym: 2-thiophenecarboxylic acid,2-thenoic acid,2-carboxythiophene,2-thiophenic acid,2-thienylcarboxylic acid,alpha-thiophenecarboxylic acid,2-tca,thiophene-2-carboxylate,tenoic acid,.alpha.-thiophenecarboxylic acid PubChem CID: 10700 ChEBI: CHEBI:71241 IUPAC Name: thiophene-2-carboxylic acid SMILES: OC(=O)C1=CC=CS1

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Specifications

PubChem CID	10700
CAS	527-72-0
Molecular Weight (g/mol)	128.15
ChEBI	CHEBI:71241
MDL Number	MFCD00005437
SMILES	OC(=O)C1=CC=CS1
Synonym	2-thiophenecarboxylic acid,2-thenoic acid,2-carboxythiophene,2-thiophenic acid,2-thienylcarboxylic acid,alpha-thiophenecarboxylic acid,2-tca,thiophene-2-carboxylate,tenoic acid,.alpha.-thiophenecarboxylic acid
IUPAC Name	thiophene-2-carboxylic acid
InChI Key	QERYCTSHXKAMIS-UHFFFAOYSA-N
Molecular Formula	C5H4O2S

2-Bromo-5-nitrothiophene, 97%

CAS: 13195-50-1 Molecular Formula: C₄H₂BrNO₂S Molecular Weight (g/mol): 208.03 InChI Key: ZPNFMDYBAQDFDY-UHFFFAOYSA-N PubChem CID: 83222 IUPAC Name: 2-bromo-5-nitrothiophene SMILES: C1=C(SC(=C1)Br)[N+](=O)[O-]

Pricing and Availability
Specifications

PubChem CID	83222
CAS	13195-50-1
Molecular Weight (g/mol)	208.03
SMILES	C1=C(SC(=C1)Br)[N+](=O)[O-]
IUPAC Name	2-bromo-5-nitrothiophene
InChI Key	ZPNFMDYBAQDFDY-UHFFFAOYSA-N
Molecular Formula	C₄H₂BrNO₂S

2,5-Dibromo-3,4-dinitrothiophene, Thermo Scientific Chemicals

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

Pricing and Availability
Specifications

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

3-Thiophenecarboxylic acid, 99%

CAS: 88-13-1 Molecular Formula: C₅H₄O₂S Molecular Weight (g/mol): 128.15 MDL Number: MFCD00005467 InChI Key: YNVOMSDITJMNET-UHFFFAOYSA-N Synonym: 3-thiophenecarboxylic acid,3-thenoic acid,3-thiophenezoic acid,beta-thiophenic acid,3-thienylcarboxylic acid,3-thiophene carboxylic acid,3-carboxythiophene,beta-thiophenecarboxylic acid,3-thiophenoic acid,unii-6v3012q6be PubChem CID: 6918 IUPAC Name: thiophene-3-carboxylic acid SMILES: C1=CSC=C1C(=O)O

Pricing and Availability
Specifications

PubChem CID	6918
CAS	88-13-1
Molecular Weight (g/mol)	128.15
MDL Number	MFCD00005467
SMILES	C1=CSC=C1C(=O)O
Synonym	3-thiophenecarboxylic acid,3-thenoic acid,3-thiophenezoic acid,beta-thiophenic acid,3-thienylcarboxylic acid,3-thiophene carboxylic acid,3-carboxythiophene,beta-thiophenecarboxylic acid,3-thiophenoic acid,unii-6v3012q6be
IUPAC Name	thiophene-3-carboxylic acid
InChI Key	YNVOMSDITJMNET-UHFFFAOYSA-N
Molecular Formula	C₅H₄O₂S

2-Amino-4-methylthiophene-3-carboxamide, 98%

CAS: 4651-97-2 Molecular Formula: C6H8N2OS Molecular Weight (g/mol): 156.203 MDL Number: MFCD00052594 InChI Key: AXLIJQRGPVJGSO-UHFFFAOYSA-N Synonym: 2-amino-4-methyl-3-thiophenecarboxamide,3-thiophenecarboxamide, 2-amino-4-methyl,acmc-20a2ps,maybridge1_003931,2-amino-4-methyl-thiophen-3-carboxamid,2-amino-4-methyl-3-thiophene carboxamide,2-azanyl-4-methyl-thiophene-3-carboxamide,2-amino-4-methyl-thiophene-3-carboxylic acid amide PubChem CID: 293810 IUPAC Name: 2-amino-4-methylthiophene-3-carboxamide SMILES: CC1=CSC(=C1C(=O)N)N

Pricing and Availability
Specifications

PubChem CID	293810
CAS	4651-97-2
Molecular Weight (g/mol)	156.203
MDL Number	MFCD00052594
SMILES	CC1=CSC(=C1C(=O)N)N
Synonym	2-amino-4-methyl-3-thiophenecarboxamide,3-thiophenecarboxamide, 2-amino-4-methyl,acmc-20a2ps,maybridge1_003931,2-amino-4-methyl-thiophen-3-carboxamid,2-amino-4-methyl-3-thiophene carboxamide,2-azanyl-4-methyl-thiophene-3-carboxamide,2-amino-4-methyl-thiophene-3-carboxylic acid amide
IUPAC Name	2-amino-4-methylthiophene-3-carboxamide
InChI Key	AXLIJQRGPVJGSO-UHFFFAOYSA-N
Molecular Formula	C6H8N2OS

3-(5-bromo-2-thienyl)pyridine, 97%, Thermo Scientific™

CAS: 169050-05-9 Molecular Formula: C9H6BrNS Molecular Weight (g/mol): 240.12 MDL Number: MFCD04971290 InChI Key: GJBHIXTYLYHAQD-UHFFFAOYSA-N Synonym: 3-5-bromothiophen-2-yl pyridine,3-5-bromo-2-thienyl pyridine,3-5-bromothien-2-yl pyridine,2-bromo-5-pyridin-3-ylthiophene,5-bromo-2-3-pyridyl thiophene,2-bromo-5-pyridin-3-yl thiophene PubChem CID: 818817 IUPAC Name: 3-(5-bromothiophen-2-yl)pyridine SMILES: BrC1=CC=C(S1)C1=CN=CC=C1

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Specifications

PubChem CID	818817
CAS	169050-05-9
Molecular Weight (g/mol)	240.12
MDL Number	MFCD04971290
SMILES	BrC1=CC=C(S1)C1=CN=CC=C1
Synonym	3-5-bromothiophen-2-yl pyridine,3-5-bromo-2-thienyl pyridine,3-5-bromothien-2-yl pyridine,2-bromo-5-pyridin-3-ylthiophene,5-bromo-2-3-pyridyl thiophene,2-bromo-5-pyridin-3-yl thiophene
IUPAC Name	3-(5-bromothiophen-2-yl)pyridine
InChI Key	GJBHIXTYLYHAQD-UHFFFAOYSA-N
Molecular Formula	C9H6BrNS

3-Methylthiophene-2-carboxylic acid, 98%

CAS: 23806-24-8 Molecular Formula: C6H5O2S Molecular Weight (g/mol): 141.16 MDL Number: MFCD00005438 InChI Key: IFLKEBSJTZGCJG-UHFFFAOYSA-M Synonym: 3-methyl-2-thiophenecarboxylic acid,3-methyl-2-thenoic acid,2-thiophenecarboxylic acid, 3-methyl,2-carboxy-3-methylthiophene,3-methyl-2-thiophene carboxylic acid,3-methyl-2-thiophenecarboxylic,3-methyl-thiophene-2-carboxylic acid,3-methyl-2-thiophenecarboxylicacid,pubchem5182,acmc-1cinc PubChem CID: 90269 IUPAC Name: 3-methylthiophene-2-carboxylic acid SMILES: CC1=C(SC=C1)C([O-])=O

Pricing and Availability
Specifications

PubChem CID	90269
CAS	23806-24-8
Molecular Weight (g/mol)	141.16
MDL Number	MFCD00005438
SMILES	CC1=C(SC=C1)C([O-])=O
Synonym	3-methyl-2-thiophenecarboxylic acid,3-methyl-2-thenoic acid,2-thiophenecarboxylic acid, 3-methyl,2-carboxy-3-methylthiophene,3-methyl-2-thiophene carboxylic acid,3-methyl-2-thiophenecarboxylic,3-methyl-thiophene-2-carboxylic acid,3-methyl-2-thiophenecarboxylicacid,pubchem5182,acmc-1cinc
IUPAC Name	3-methylthiophene-2-carboxylic acid
InChI Key	IFLKEBSJTZGCJG-UHFFFAOYSA-M
Molecular Formula	C6H5O2S

Thieno[2,3-b]pyrazine-6-carboxylic acid, 90%, Thermo Scientific™

CAS: 59944-79-5 Molecular Formula: C7H4N2O2S Molecular Weight (g/mol): 180.181 InChI Key: MEHCDDSVVYRWJT-UHFFFAOYSA-N Synonym: thieno 2,3-b pyrazine-6-carboxylic acid,pubchem9882,thieno 2,3-b pyrazine-6-carboxylicacid,6-thieno 2,3-b pyrazinecarboxylic acid,thieno 3,2-b pyrazine-6-carboxylic acid,thiopheno 2,3-b pyrazine-6-carboxylic acid PubChem CID: 7164578 IUPAC Name: thieno[2,3-b]pyrazine-6-carboxylic acid SMILES: C1=CN=C2C(=N1)C=C(S2)C(=O)O

Pricing and Availability
Specifications

PubChem CID	7164578
CAS	59944-79-5
Molecular Weight (g/mol)	180.181
SMILES	C1=CN=C2C(=N1)C=C(S2)C(=O)O
Synonym	thieno 2,3-b pyrazine-6-carboxylic acid,pubchem9882,thieno 2,3-b pyrazine-6-carboxylicacid,6-thieno 2,3-b pyrazinecarboxylic acid,thieno 3,2-b pyrazine-6-carboxylic acid,thiopheno 2,3-b pyrazine-6-carboxylic acid
IUPAC Name	thieno[2,3-b]pyrazine-6-carboxylic acid
InChI Key	MEHCDDSVVYRWJT-UHFFFAOYSA-N
Molecular Formula	C7H4N2O2S

5-Methyl-1-benzothiophen-2-ylboronic acid, 97%, Thermo Scientific™

CAS: 136099-65-5 Molecular Formula: C9H9BO2S Molecular Weight (g/mol): 192.04 MDL Number: MFCD06200866 InChI Key: DHNHZPQPQAINDI-UHFFFAOYSA-N Synonym: 5-methylbenzo b thiophene-2-boronic acid,5-methylbenzothiphene-2-boronic acid,5-methylbenzo b thiophen-2-ylboronic acid,5-methyl-1-benzothiophen-2-yl boronic acid,5-methylbenzothiophene-2-boronic acid,2-borono-5-methylbenzo b thiophene,5-methyl-benzo b thiophen-2-ylboronic acid,5-methylbenzothiophen-2-yl boronic acid,d00wzi,5-methylbenzo b thiophen-2-yl boronic acid PubChem CID: 2794641 IUPAC Name: (5-methyl-1-benzothiophen-2-yl)boronic acid SMILES: CC1=CC=C2SC(=CC2=C1)B(O)O

Pricing and Availability
Specifications

PubChem CID	2794641
CAS	136099-65-5
Molecular Weight (g/mol)	192.04
MDL Number	MFCD06200866
SMILES	CC1=CC=C2SC(=CC2=C1)B(O)O
Synonym	5-methylbenzo b thiophene-2-boronic acid,5-methylbenzothiphene-2-boronic acid,5-methylbenzo b thiophen-2-ylboronic acid,5-methyl-1-benzothiophen-2-yl boronic acid,5-methylbenzothiophene-2-boronic acid,2-borono-5-methylbenzo b thiophene,5-methyl-benzo b thiophen-2-ylboronic acid,5-methylbenzothiophen-2-yl boronic acid,d00wzi,5-methylbenzo b thiophen-2-yl boronic acid
IUPAC Name	(5-methyl-1-benzothiophen-2-yl)boronic acid
InChI Key	DHNHZPQPQAINDI-UHFFFAOYSA-N
Molecular Formula	C9H9BO2S

2-Bromobenzo[b]thiophene, ≥97%, Thermo Scientific™

CAS: 5394-13-8 Molecular Formula: C8H5BrS Molecular Weight (g/mol): 213.092 MDL Number: MFCD08435846 InChI Key: WIFMYMXKTAVDSQ-UHFFFAOYSA-N Synonym: 2-bromobenzo b thiophene,benzo b thiophene, 2-bromo,2-bromobenzothiophene,bromobenzothiophene,2-bromobenzthiophene,bromobenzo b thiophene,2-bromo-benzo b thiophene,2-bromobenzo b-thiophene PubChem CID: 94786 IUPAC Name: 2-bromo-1-benzothiophene SMILES: C1=CC=C2C(=C1)C=C(S2)Br

Pricing and Availability
Specifications

PubChem CID	94786
CAS	5394-13-8
Molecular Weight (g/mol)	213.092
MDL Number	MFCD08435846
SMILES	C1=CC=C2C(=C1)C=C(S2)Br
Synonym	2-bromobenzo b thiophene,benzo b thiophene, 2-bromo,2-bromobenzothiophene,bromobenzothiophene,2-bromobenzthiophene,bromobenzo b thiophene,2-bromo-benzo b thiophene,2-bromobenzo b-thiophene
IUPAC Name	2-bromo-1-benzothiophene
InChI Key	WIFMYMXKTAVDSQ-UHFFFAOYSA-N
Molecular Formula	C8H5BrS

5-(2-Phenyleth-1-ynyl)thiophene-2-carbaldehyde, 90%, Thermo Scientific™

CAS: 17257-10-2 Molecular Formula: C13H8OS Molecular Weight (g/mol): 212.266 MDL Number: MFCD00126374 InChI Key: YFMUACLZRVJOBK-UHFFFAOYSA-N Synonym: 5-2-phenyleth-1-ynyl thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carbaldehyde,5-2-phenylethynyl thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carboxaldehyde,2-thiophenecarboxaldehyde,5-2-phenylethynyl,5-phenylethynyl-thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carboxylate PubChem CID: 2737140 IUPAC Name: 5-(2-phenylethynyl)thiophene-2-carbaldehyde SMILES: C1=CC=C(C=C1)C#CC2=CC=C(S2)C=O

Pricing and Availability
Specifications

PubChem CID	2737140
CAS	17257-10-2
Molecular Weight (g/mol)	212.266
MDL Number	MFCD00126374
SMILES	C1=CC=C(C=C1)C#CC2=CC=C(S2)C=O
Synonym	5-2-phenyleth-1-ynyl thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carbaldehyde,5-2-phenylethynyl thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carboxaldehyde,2-thiophenecarboxaldehyde,5-2-phenylethynyl,5-phenylethynyl-thiophene-2-carbaldehyde,5-phenylethynyl thiophene-2-carboxylate
IUPAC Name	5-(2-phenylethynyl)thiophene-2-carbaldehyde
InChI Key	YFMUACLZRVJOBK-UHFFFAOYSA-N
Molecular Formula	C13H8OS

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

CAS: 3133-78-6 Molecular Formula: C10H8O2S Molecular Weight (g/mol): 192.232 MDL Number: MFCD01830305 InChI Key: YVKLUKXESFJRCE-UHFFFAOYSA-N Synonym: 3-methylbenzo b thiophene-2-carboxylic acid,3-methylbenzothiophene-2-carboxylic acid,acmc-20a6oy,methylbenzothiophene-carboxylic,3-methylthianaphthene-2-carboxylic acid,3-methyl 2-benzo b thiophenecarboxylic acid,benzo b thiophene-2-carboxylicacid, 3-methyl PubChem CID: 821868 IUPAC Name: 3-methyl-1-benzothiophene-2-carboxylic acid SMILES: CC1=C(SC2=CC=CC=C12)C(=O)O

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Specifications

PubChem CID	821868
CAS	3133-78-6
Molecular Weight (g/mol)	192.232
MDL Number	MFCD01830305
SMILES	CC1=C(SC2=CC=CC=C12)C(=O)O
Synonym	3-methylbenzo b thiophene-2-carboxylic acid,3-methylbenzothiophene-2-carboxylic acid,acmc-20a6oy,methylbenzothiophene-carboxylic,3-methylthianaphthene-2-carboxylic acid,3-methyl 2-benzo b thiophenecarboxylic acid,benzo b thiophene-2-carboxylicacid, 3-methyl
IUPAC Name	3-methyl-1-benzothiophene-2-carboxylic acid
InChI Key	YVKLUKXESFJRCE-UHFFFAOYSA-N
Molecular Formula	C10H8O2S

2-chloro-3-nitrothiophene, 97%, Thermo Scientific™

CAS: 5330-98-3 Molecular Formula: C4H2ClNO2S Molecular Weight (g/mol): 163.58 MDL Number: MFCD00052159 InChI Key: OFPRGOSJWUNETN-UHFFFAOYSA-N Synonym: thiophene,2-chloro-3-nitro,thiophene, 2-chloro-3-nitro,2-chloro-3-nitro-thiophene,pubchem5466 PubChem CID: 220186 IUPAC Name: 2-chloro-3-nitrothiophene SMILES: [O-][N+](=O)C1=C(Cl)SC=C1

Pricing and Availability
Specifications

PubChem CID	220186
CAS	5330-98-3
Molecular Weight (g/mol)	163.58
MDL Number	MFCD00052159
SMILES	[O-][N+](=O)C1=C(Cl)SC=C1
Synonym	thiophene,2-chloro-3-nitro,thiophene, 2-chloro-3-nitro,2-chloro-3-nitro-thiophene,pubchem5466
IUPAC Name	2-chloro-3-nitrothiophene
InChI Key	OFPRGOSJWUNETN-UHFFFAOYSA-N
Molecular Formula	C4H2ClNO2S

Methyl 3-amino-4-cyano-5-(methylthio)thiophene-2-carboxylate, 97%, Thermo Scientific Chemicals

CAS: 129332-45-2 Molecular Formula: C8H8N2O2S2 Molecular Weight (g/mol): 228.284 MDL Number: MFCD00052752 InChI Key: VBXBCNWDAJLZOC-UHFFFAOYSA-N Synonym: methyl 3-amino-4-cyano-5-methylthio thiophene-2-carboxylate,methyl 3-amino-4-cyano-5-methylsulfanyl thiophene-2-carboxylate,methyl3-amino-4-cyano-5-methylthio thiophene-2-carboxylate,2-thiophenecarboxylicacid, 3-amino-4-cyano-5-methylthio-, methyl ester,3-amino-4-cyano-5-methylsulfanylthiophene-2-carboxylic acid methyl ester,methyl 3-azanyl-4-cyano-5-methylsulfanyl-thiophene-2-carboxylate,3-amino-4-cyano-5-methylthio-2-thiophenecarboxylic acid methyl ester,maybridge1_009000,acmc-1c12n,methyl 3-amino-4-cyano-5-methylthiothiophene-2-carboxylate PubChem CID: 2778604 IUPAC Name: methyl 3-amino-4-cyano-5-methylsulfanylthiophene-2-carboxylate SMILES: COC(=O)C1=C(C(=C(S1)SC)C#N)N

Pricing and Availability
Specifications

PubChem CID	2778604
CAS	129332-45-2
Molecular Weight (g/mol)	228.284
MDL Number	MFCD00052752
SMILES	COC(=O)C1=C(C(=C(S1)SC)C#N)N
Synonym	methyl 3-amino-4-cyano-5-methylthio thiophene-2-carboxylate,methyl 3-amino-4-cyano-5-methylsulfanyl thiophene-2-carboxylate,methyl3-amino-4-cyano-5-methylthio thiophene-2-carboxylate,2-thiophenecarboxylicacid, 3-amino-4-cyano-5-methylthio-, methyl ester,3-amino-4-cyano-5-methylsulfanylthiophene-2-carboxylic acid methyl ester,methyl 3-azanyl-4-cyano-5-methylsulfanyl-thiophene-2-carboxylate,3-amino-4-cyano-5-methylthio-2-thiophenecarboxylic acid methyl ester,maybridge1_009000,acmc-1c12n,methyl 3-amino-4-cyano-5-methylthiothiophene-2-carboxylate
IUPAC Name	methyl 3-amino-4-cyano-5-methylsulfanylthiophene-2-carboxylate
InChI Key	VBXBCNWDAJLZOC-UHFFFAOYSA-N
Molecular Formula	C8H8N2O2S2

Thiophenes

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