Lot numbers can be found on the outside label of a product:
1,2-Diphenylpyrazolidine-3,5-dione
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CAS No. 2652-77-9
- Cat. No. CS-0156127
- Purity≥95%
- MDL No.MFCD00179924
*For research and further manufacturing use only, not for direct human use.
Structure of 2652-77-9
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General Information
- CAS No. 2652-77-9
- Cat. No. CS-0156127
- Purity ≥95%
- MDL No. MFCD00179924
- Storage Store at room temperature
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₁₅H₁₂N₂O₂
- Molecular Weight 252.27
- Synonym(s) difenildichetopirazolidina
- SMILES C1=CC=C(C=C1)N2C(=O)CC(=O)N2C3=CC=CC=C3
Description
1,2-Diphenylpyrazolidine-3,5-dione features a rigid, electron-deficient pyrazolidinedione core flanked by two aryl rings, enabling its role in cycloaddition reactions and as a building block for heterocyclic scaffolds. This bench-stable compound integrates readily into synthetic sequences requiring controlled reactivity and structural precision.
Application
1,2-Diphenylpyrazolidine-3,5-dione serves as a stable, bench-ready building block for heterocyclic synthesis, enabling efficient access to pyrazoline and pyrazole derivatives through cycloaddition and reduction reactions. Its dual aryl substitution enhances stability and facilitates purification, while its diketone functionality supports diverse functional group interconversions. Widely employed in medicinal chemistry scaffolds, it functions as a reliable precursor in the construction of bioactive molecules under standard laboratory conditions.
Synthesis
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Route1
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122-66-7 -
105-53-3
- ~77%
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In-stock
2652-77-9
References
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Fernandez, Israel; Dyker, C. Adam; DeHope, Alan; Donnadieu, Bruno; Frenking, Gernot; Bertrand, Guy Journal of the American Chemical Society, 2009 , vol. 131, # 33 p. 11875 - 11881
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Route2
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In-stock
7440-44-0 -
122-66-7
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105-53-3
- ~58%
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In-stock
2652-77-9
References
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Fuji Photo Film Co., Ltd. Patent: US6458474 B1, 2002 ;
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Route3
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122-66-7
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1663-67-8
- ~%
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In-stock
2652-77-9
References
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Tsumaki Bulletin of the Chemical Society of Japan, 1931 , vol. 6, p. 1,8
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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-P330-P362+P364-P405-P501
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Quality Control
Computational Chemistry Data
- TPSA 40.62
- LogP 2.3715
- H_Acceptors 2
- H_Donors 0
- Rotatable_Bonds 2
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Key Words
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