Lot numbers can be found on the outside label of a product:
2,5-Dibromoterephthalaldehyde
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CAS No. 63525-48-4
- Cat. No. CS-0060285
- Purity≥96%
- MDL No.None
*For research and further manufacturing use only, not for direct human use.
Structure of 63525-48-4
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General Information
- CAS No. 63525-48-4
- Cat. No. CS-0060285
- Purity ≥96%
- MDL No. None
- Storage 4°C, stored under nitrogen
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₈H₄Br₂O₂
- Molecular Weight 291.92
- Synonym(s) 2,5-Dibromobenzene-1,4-dicarbaldehyde
- SMILES C1=C(C=O)C(=CC(=C1Br)C=O)Br
Description
2,5-Dibromoterephthalaldehyde features two bromine atoms positioned at the para and meta sites relative to the aldehyde groups, creating a highly functionalized aromatic scaffold. This electron-deficient core enables selective coupling reactions in synthetic organic chemistry, particularly in cross-coupling and cyclization processes. The molecule exhibits enhanced stability under standard bench conditions and integrates readily into complex molecular architectures requiring halogen-directed functionalization.
Application
2,5-Dibromoterephthalaldehyde serves as a versatile dihalogenated aromatic aldehyde building block for the synthesis of functionalized heterocycles and conjugated materials. Its orthogonal reactivity—enabling selective cross-coupling, nucleophilic addition, or oxidative transformations—makes it valuable in medicinal chemistry and materials science applications. Bench-stable and readily purified by recrystallization, it functions effectively in Pd-catalyzed coupling protocols and serves as a key intermediate in the construction of complex aromatic scaffolds.
Synthesis
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Route1
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In-stock
1074-24-4 - ~52%
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In-stock
63525-48-4
References
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You, Wei; Wang, Liming; Wang, Qing; Yu, Luping Macromolecules, 2002 , vol. 35, # 12 p. 4636 - 4645
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Route2
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106-42-3 - ~%
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In-stock
63525-48-4
References
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Organic Letters, , vol. 9, # 18 p. 3571 - 3573
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Route3
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105653-65-4
- ~4%
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In-stock
63525-48-4
References
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Xie, Zengqi; Yang, Bing; Liu, Linlin; Li, Mao; Lin, Dong; Ma, Yuguang; Cheng, Gang; Liu, Shiyong Journal of Physical Organic Chemistry, 2005 , vol. 18, # 9 p. 962 - 973
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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 34.14
- LogP 2.8366
- H_Acceptors 2
- H_Donors 0
- Rotatable_Bonds 2
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