2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine

Name: 2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 56844-38-3
Cat. No. CS-0052162
Purity≥97%
MDL No.MFCD09965519

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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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2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine|CS-0052162

Structure of 56844-38-3

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Description

2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine features a fused thienopyrimidine core with strategically positioned chloro and methyl substituents, delivering enhanced reactivity in cross-coupling transformations. This electron-deficient scaffold integrates readily into advanced heterocyclic architectures, enabling efficient access to functionalized pyrimidine derivatives under standard conditions.

Application

2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine serves as a versatile building block in medicinal chemistry, enabling efficient construction of purine and pyrimidine-based heterocycles. Its dichloro substitution pattern facilitates nucleophilic displacement reactions, while the methylthienopyrimidine core provides structural rigidity and favorable electronic properties. The compound exhibits excellent bench stability and compatibility with standard coupling protocols, supporting scalable synthesis of kinase inhibitors and other bioactive scaffolds.

General Information

CAS No. 56844-38-3
Cat. No. CS-0052162
Purity ≥97%
MDL No. MFCD09965519
Storage -20°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₄Cl₂N₂S
Molecular Weight 219.10
Synonym(s) 2,4-DICHLORO-5-METHYL-THIENO[2,3-D]PYRIMIDINE
SMILES CC1=CSC2=NC(Cl)=NC(Cl)=C12

Computational Chemistry Data

TPSA 25.78
LogP 3.30652
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 0

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrimidine compounds

Building Blocks Skeleton Aromatic heterocycle compounds Thiophene compounds

Key Words

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2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine

CAS No. 56844-38-3

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