2,5-Dimethylthiophene

Name: 2,5-Dimethylthiophene
Brand: ChemScene
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CAS No. 638-02-8
Cat. No. CS-0022382
Purity≥98%
MDL No.MFCD00005452

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 638-02-8

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Description

2,5-Dimethylthiophene is a bench-stable, electron-rich heterocycle featuring two methyl groups at the 2- and 5-positions of the thiophene ring. This substitution pattern enhances solubility and thermal stability while preserving the core reactivity of the thiophene scaffold. The compound serves as a valuable building block in the synthesis of conjugated polymers, functional small molecules, and advanced materials for organic electronics.

Application

2,5-Dimethylthiophene serves as a stable, bench-ready heterocyclic building block for the synthesis of functionalized thiophenes and biologically relevant scaffolds. Its methyl groups enhance solubility and stability while enabling selective functionalization at C3 and C4 positions via electrophilic substitution or transition-metal-catalyzed coupling. The compound functions effectively in cross-coupling reactions and is compatible with standard purification techniques, making it a practical choice for medicinal chemistry and materials science applications.

General Information

CAS No. 638-02-8
Cat. No. CS-0022382
Purity ≥98%
MDL No. MFCD00005452
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₈S
Molecular Weight 112.19
Synonym(s) 2,5-Dimethylthiophene; Thiophene, 2,5-dimethyl-
SMILES CC1=CC=C(C)S1

Computational Chemistry Data

TPSA 0
LogP 2.36494
H_Acceptors 1
H_Donors 0
Rotatable_Bonds 0

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS02
Signal Word : Warning	UN#: 1993
Class : 3	Packing Group : Ⅲ
Hazard Statements : H226
Precautionary Statements : P210-P233-P240-P241-P242-P243-P280-P370+P378-P501

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Other Classifications

Bioactive Molecules Natural Products

Building Blocks Skeleton Aromatic heterocycle compounds Thiophene compounds

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2,5-Dimethylthiophene

CAS No. 638-02-8

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