Thiophenes

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

1 – 15 of 263 results

5-Methylthiophene-2-carboxylic acid, 98+%, Thermo Scientific Chemicals

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

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Specifications

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

Benzo[b]thiophene-2-boronic acid, 97%, Thermo Scientific Chemicals

CAS: 98437-23-1 Molecular Formula: C8H7BO2S Molecular Weight (g/mol): 178.01 MDL Number: MFCD01075674 InChI Key: YNCYPMUJDDXIRH-UHFFFAOYSA-N Synonym: 2-benzothienylboronic acid,benzo b thiophen-2-ylboronic acid,benzo b thiophene-2-boronic acid,benzothiophene-2-boronic acid,1-benzothien-2-ylboronic acid,thianaphthene-2-boronic acid,benzo b thiophene-2-ylboronic acid,2-benzothiopheneboronic acid,benzothiophen-2-ylboronic acid PubChem CID: 2359 SMILES: OB(O)C1=CC2=CC=CC=C2S1

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Specifications

PubChem CID	2359
CAS	98437-23-1
Molecular Weight (g/mol)	178.01
MDL Number	MFCD01075674
SMILES	OB(O)C1=CC2=CC=CC=C2S1
Synonym	2-benzothienylboronic acid,benzo b thiophen-2-ylboronic acid,benzo b thiophene-2-boronic acid,benzothiophene-2-boronic acid,1-benzothien-2-ylboronic acid,thianaphthene-2-boronic acid,benzo b thiophene-2-ylboronic acid,2-benzothiopheneboronic acid,benzothiophen-2-ylboronic acid
InChI Key	YNCYPMUJDDXIRH-UHFFFAOYSA-N
Molecular Formula	C8H7BO2S

4,5-Dibromothiophene-2-sulfonyl chloride, 97%, Thermo Scientific Chemicals

CAS: 81606-31-7 Molecular Formula: C4HBr2ClO2S2 Molecular Weight (g/mol): 340.43 MDL Number: MFCD00041439 InChI Key: WJYGHWXWQSCONR-UHFFFAOYSA-N Synonym: 4,5-dibromothiophene-2-sulphonyl chloride,2,3-dibromothiophene-5-sulfonyl chloride,4,5-dibromo-2-thiophenesulfonyl chloride,2-thiophenesulfonyl chloride, 4,5-dibromo,4,5-dibromothiophene-2-sulfonic acid chloride,acmc-20ams9,buttpark 9350-57,4,5-dibromo 2-thienyl chlorosulfone,2,3-dibromothiophene-5-sulfonylchloride,4,5-dibromothiophene-2-sulfonylchloride PubChem CID: 522755 IUPAC Name: 4,5-dibromothiophene-2-sulfonyl chloride SMILES: ClS(=O)(=O)C1=CC(Br)=C(Br)S1

Pricing and Availability
Specifications

PubChem CID	522755
CAS	81606-31-7
Molecular Weight (g/mol)	340.43
MDL Number	MFCD00041439
SMILES	ClS(=O)(=O)C1=CC(Br)=C(Br)S1
Synonym	4,5-dibromothiophene-2-sulphonyl chloride,2,3-dibromothiophene-5-sulfonyl chloride,4,5-dibromo-2-thiophenesulfonyl chloride,2-thiophenesulfonyl chloride, 4,5-dibromo,4,5-dibromothiophene-2-sulfonic acid chloride,acmc-20ams9,buttpark 9350-57,4,5-dibromo 2-thienyl chlorosulfone,2,3-dibromothiophene-5-sulfonylchloride,4,5-dibromothiophene-2-sulfonylchloride
IUPAC Name	4,5-dibromothiophene-2-sulfonyl chloride
InChI Key	WJYGHWXWQSCONR-UHFFFAOYSA-N
Molecular Formula	C4HBr2ClO2S2

5-Pyridin-2-ylthiophene-2-carbaldehyde, Thermo Scientific™

CAS: 132706-12-8 Molecular Formula: C10H7NOS Molecular Weight (g/mol): 189.232 InChI Key: VAGVVFZWHTULBM-UHFFFAOYSA-N Synonym: 5-pyridin-2-yl thiophene-2-carbaldehyde,5-2-pyridyl thiophene-2-carbaldehyde,2-thiophenecarboxaldehyde,5-2-pyridinyl,5-pyridin-2-yl thiophene-2-carboxaldehyde,5-2-pyridinyl-2-thiophenecarboxaldehyde,pubchem16361,acmc-1c1gm,5-2-pyridinyl-2-thiophenecarbaldehyde,5-2-pyridinyl-2-thiophenecarbaldehyde #,thiophene-2-carboxaldehyde, 5-2-pyridyl PubChem CID: 605127 IUPAC Name: 5-pyridin-2-ylthiophene-2-carbaldehyde SMILES: C1=CC=NC(=C1)C2=CC=C(S2)C=O

Pricing and Availability
Specifications

PubChem CID	605127
CAS	132706-12-8
Molecular Weight (g/mol)	189.232
SMILES	C1=CC=NC(=C1)C2=CC=C(S2)C=O
Synonym	5-pyridin-2-yl thiophene-2-carbaldehyde,5-2-pyridyl thiophene-2-carbaldehyde,2-thiophenecarboxaldehyde,5-2-pyridinyl,5-pyridin-2-yl thiophene-2-carboxaldehyde,5-2-pyridinyl-2-thiophenecarboxaldehyde,pubchem16361,acmc-1c1gm,5-2-pyridinyl-2-thiophenecarbaldehyde,5-2-pyridinyl-2-thiophenecarbaldehyde #,thiophene-2-carboxaldehyde, 5-2-pyridyl
IUPAC Name	5-pyridin-2-ylthiophene-2-carbaldehyde
InChI Key	VAGVVFZWHTULBM-UHFFFAOYSA-N
Molecular Formula	C10H7NOS

5-Methylthiophene-2-carbonyl chloride, 97%, Thermo Scientific™

CAS: 31555-59-6 Molecular Formula: C6H5ClOS Molecular Weight (g/mol): 160.615 MDL Number: MFCD00130092 InChI Key: DJCGIWVUKCNCAT-UHFFFAOYSA-N Synonym: 5-methyl-thiophene-2-carbonyl chloride,5-methyl-2-thiophenecarbonyl chloride,2-thiophenecarbonyl chloride, 5-methyl,2-thiophenecarbonylchloride, 5-methyl,5-methyl-2-thenoyl chloride,2-chlorocarbonyl-5-methylthiophene,5-methyl-thiophene-carboxylicacid chloride,5-methylthiophene-2-carboxylic acid chloride,5-methyl-thiophene-2-carboxylic acid chloride PubChem CID: 2760083 IUPAC Name: 5-methylthiophene-2-carbonyl chloride SMILES: CC1=CC=C(S1)C(=O)Cl

Pricing and Availability
Specifications

PubChem CID	2760083
CAS	31555-59-6
Molecular Weight (g/mol)	160.615
MDL Number	MFCD00130092
SMILES	CC1=CC=C(S1)C(=O)Cl
Synonym	5-methyl-thiophene-2-carbonyl chloride,5-methyl-2-thiophenecarbonyl chloride,2-thiophenecarbonyl chloride, 5-methyl,2-thiophenecarbonylchloride, 5-methyl,5-methyl-2-thenoyl chloride,2-chlorocarbonyl-5-methylthiophene,5-methyl-thiophene-carboxylicacid chloride,5-methylthiophene-2-carboxylic acid chloride,5-methyl-thiophene-2-carboxylic acid chloride
IUPAC Name	5-methylthiophene-2-carbonyl chloride
InChI Key	DJCGIWVUKCNCAT-UHFFFAOYSA-N
Molecular Formula	C6H5ClOS

ethyle5-(5-bromo-2-thienyl)-3-isoxazolecarboxylate, 97%, Thermo Scientific™

CAS: 423768-50-7 Molecular Formula: C10H8BrNO3S Molecular Weight (g/mol): 302.142 MDL Number: MFCD03407336 InChI Key: OIZZMDOBYXRSNQ-UHFFFAOYSA-N Synonym: ethyl 5-5-bromo-2-thienyl-3-isoxazolecarboxylate,ethyl 5-5-bromothiophen-2-yl-1,2-oxazole-3-carboxylate,ethyl 5-5-bromothiophen-2-yl isoxazole-3-carboxylate PubChem CID: 2776548 IUPAC Name: ethyl 5-(5-bromothiophen-2-yl)-1,2-oxazole-3-carboxylate SMILES: CCOC(=O)C1=NOC(=C1)C2=CC=C(S2)Br

Pricing and Availability
Specifications

PubChem CID	2776548
CAS	423768-50-7
Molecular Weight (g/mol)	302.142
MDL Number	MFCD03407336
SMILES	CCOC(=O)C1=NOC(=C1)C2=CC=C(S2)Br
Synonym	ethyl 5-5-bromo-2-thienyl-3-isoxazolecarboxylate,ethyl 5-5-bromothiophen-2-yl-1,2-oxazole-3-carboxylate,ethyl 5-5-bromothiophen-2-yl isoxazole-3-carboxylate
IUPAC Name	ethyl 5-(5-bromothiophen-2-yl)-1,2-oxazole-3-carboxylate
InChI Key	OIZZMDOBYXRSNQ-UHFFFAOYSA-N
Molecular Formula	C10H8BrNO3S

2-Thiophenecarboxylic acid hydrazide, 97%, Thermo Scientific Chemicals

CAS: 2361-27-5 Molecular Formula: C₅H₆N₂OS Molecular Weight (g/mol): 142.18 MDL Number: MFCD00005435 InChI Key: SOGBOGBTIKMGFS-UHFFFAOYSA-N Synonym: 2-thiophenecarboxylic acid hydrazide,thiophene-2-carboxylic acid hydrazide,2-thenoylhydrazine,2-thiophenecarboxylic hydrazide,2-thiophenecarbohydrazide,thiophene-2-carboxylic hydrazide,2-thiophenecarboxylic acid, hydrazide,2-thiophenecarbohydrazonic acid,2-thienylcarboxylic acid hydrazide,2-thiophene carboxylic hydrazide PubChem CID: 73098 IUPAC Name: thiophene-2-carbohydrazide SMILES: C1=CSC(=C1)C(=O)NN

Pricing and Availability
Specifications

PubChem CID	73098
CAS	2361-27-5
Molecular Weight (g/mol)	142.18
MDL Number	MFCD00005435
SMILES	C1=CSC(=C1)C(=O)NN
Synonym	2-thiophenecarboxylic acid hydrazide,thiophene-2-carboxylic acid hydrazide,2-thenoylhydrazine,2-thiophenecarboxylic hydrazide,2-thiophenecarbohydrazide,thiophene-2-carboxylic hydrazide,2-thiophenecarboxylic acid, hydrazide,2-thiophenecarbohydrazonic acid,2-thienylcarboxylic acid hydrazide,2-thiophene carboxylic hydrazide
IUPAC Name	thiophene-2-carbohydrazide
InChI Key	SOGBOGBTIKMGFS-UHFFFAOYSA-N
Molecular Formula	C₅H₆N₂OS

5-Phenylthiophene-2-carboxylic acid, 95+%, Thermo Scientific™

CAS: 19163-24-7 Molecular Formula: C11H8O2S Molecular Weight (g/mol): 204.243 InChI Key: QGMFBCDNJUZQBZ-UHFFFAOYSA-N Synonym: 5-phenyl-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-phenyl,5-phenyl-2-thiophene carboxylic acid,pubchem19533,5-phenyl-2-thenoic acid,2-carboxy-5-phenylthiophene,5-phenyl 2-thiophenecarboxylic acid,5-phenyl-thiophene-2-carboxylic acid PubChem CID: 736494 IUPAC Name: 5-phenylthiophene-2-carboxylic acid SMILES: C1=CC=C(C=C1)C2=CC=C(S2)C(=O)O

Pricing and Availability
Specifications

PubChem CID	736494
CAS	19163-24-7
Molecular Weight (g/mol)	204.243
SMILES	C1=CC=C(C=C1)C2=CC=C(S2)C(=O)O
Synonym	5-phenyl-2-thiophenecarboxylic acid,2-thiophenecarboxylic acid, 5-phenyl,5-phenyl-2-thiophene carboxylic acid,pubchem19533,5-phenyl-2-thenoic acid,2-carboxy-5-phenylthiophene,5-phenyl 2-thiophenecarboxylic acid,5-phenyl-thiophene-2-carboxylic acid
IUPAC Name	5-phenylthiophene-2-carboxylic acid
InChI Key	QGMFBCDNJUZQBZ-UHFFFAOYSA-N
Molecular Formula	C11H8O2S

Thieno[2,3-b]pyrazin-7-amine, Thermo Scientific™™

Pricing and Availability

3-(5-Bromo-2-thienyl)-5-methyl-1,2,4-oxadiazole, 97%, Thermo Scientific™

Pricing and Availability

Methyle3-amino-5-(4-chlorophenyl)thiophene-2-carboxylate, 97%, Thermo Scientific™

CAS: 91076-93-6 Molecular Formula: C12H10ClNO2S Molecular Weight (g/mol): 267.727 MDL Number: MFCD00052591 InChI Key: MELGGDOYSMRBGA-UHFFFAOYSA-N PubChem CID: 2777492 IUPAC Name: methyl 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylate SMILES: COC(=O)C1=C(C=C(S1)C2=CC=C(C=C2)Cl)N

Pricing and Availability
Specifications

PubChem CID	2777492
CAS	91076-93-6
Molecular Weight (g/mol)	267.727
MDL Number	MFCD00052591
SMILES	COC(=O)C1=C(C=C(S1)C2=CC=C(C=C2)Cl)N
IUPAC Name	methyl 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylate
InChI Key	MELGGDOYSMRBGA-UHFFFAOYSA-N
Molecular Formula	C12H10ClNO2S

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

1-Benzothiophene-2-sulfonyl chloride, 97%, Thermo Scientific™

Pricing and Availability

5-Formylthiophene-2-boronic acid, 97%, Thermo Scientific Chemicals

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

Pricing and Availability
Specifications

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

5-Bromothiophene-2-carboxylic acid, 98%, Thermo Scientific Chemicals

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

Pricing and Availability
Specifications

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

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