Lot numbers can be found on the outside label of a product:
6-Bromo-4-chlorothieno[2,3-d]pyrimidine
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CAS No. 56844-12-3
- Cat. No. CS-W003611
- Purity≥98%
- MDL No.MFCD09264088
*For research and further manufacturing use only, not for direct human use.
![6-Bromo-4-chlorothieno[2,3-d]pyrimidine|CS-W003611](https://file.chemscene.com/productPIC/CS-W003611.gif)
Structure of 56844-12-3
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General Information
- CAS No. 56844-12-3
- Cat. No. CS-W003611
- Purity ≥98%
- MDL No. MFCD09264088
- Storage -20°C, sealed storage, away from moisture
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₆H₂BrClN₂S
- Molecular Weight 249.52
- Synonym(s) 6-broMo-4-chlorothieno[2
- SMILES Brc1sc2c(c1)c(Cl)ncn2
Description
6-Bromo-4-chlorothieno[2,3-d]pyrimidine features a fused thienopyrimidine core with complementary halogen substituents enabling selective cross-coupling. This electron-deficient heterocycle integrates readily into advanced pharmaceutical scaffolds, offering high functional group tolerance and stability under standard reaction conditions.
Application
6-Bromo-4-chlorothieno[2,3-d]pyrimidine serves as a versatile building block in heterocyclic synthesis, enabling palladium-catalyzed cross-coupling reactions due to its orthogonal halogen reactivity. The bromo and chloro substituents allow sequential functionalization, facilitating the construction of complex thienopyrimidine scaffolds relevant to medicinal chemistry. Its bench-stable crystalline form supports straightforward handling and purification, making it well-suited for iterative synthetic campaigns in API development.
Synthesis
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Route1
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In-stock
![6-Bromothieno[2,3-d]pyrimidin-4(1H)-one|CS-0119928](https://file.chemscene.com/productPIC/CS-0119928.gif)
56844-40-7 - ~87%
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In-stock
56844-12-3
References
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Bugge, Steffen; Kaspersen, Svein Jacob; Sundby, Eirik; Hoff, Bard Helge Tetrahedron, 2012 , vol. 68, # 45 p. 9226 - 9233
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Route2
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In-stock
![Thieno[2,3-d]pyrimidin-4(3H)-one|CS-W008324](https://file.chemscene.com/productPIC/CS-W008324.gif)
14080-50-3 - ~%
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In-stock
56844-12-3
References
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Comptes Rendus des Seances de l'Academie des Sciences, Serie C: Sciences Chimiques, , vol. 267, p. 697 - 700
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Route3
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In-stock
![4-Chlorothieno[2,3-d]pyrimidine|CS-W005019](https://file.chemscene.com/productPIC/CS-W005019.gif)
14080-59-2 - ~25%
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1217309-72-2 -
In-stock
56844-12-3
References
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US2013/190297 A1, ; Paragraph 1216; 1217; 1218 ;
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Safety Information
Download SDS|
GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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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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Quality Control
Computational Chemistry Data
- TPSA 25.78
- LogP 3.1072
- H_Acceptors 3
- H_Donors 0
- Rotatable_Bonds 0
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Key Words
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