Lot numbers can be found on the outside label of a product:
3-Amino-5-(4-methoxyphenyl)pyrazole
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CAS No. 19541-95-8
- Cat. No. CS-0204600
- Purity≥98%
- MDL No.MFCD00462192
*For research and further manufacturing use only, not for direct human use.
Structure of 19541-95-8
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General Information
- CAS No. 19541-95-8
- Cat. No. CS-0204600
- Purity ≥98%
- MDL No. MFCD00462192
- Storage 4°C, protect from light
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₁₀H₁₁N₃O
- Molecular Weight 189.21
- Synonym(s) 3-(4-methoxyphenyl)-1H-pyrazol-5-amine
- SMILES N=1NC(=CC1N)C=2C=CC(OC)=CC2
Description
3-Amino-5-(4-methoxyphenyl)pyrazole is a heterocyclic scaffold featuring an electron-rich pyrazole core conjugated with a para-methoxyphenyl group. This configuration imparts enhanced solubility and stability under standard bench conditions, enabling straightforward incorporation into medicinal chemistry campaigns. The amino functionality facilitates direct derivatization for probe development or macrocycle assembly.
Application
3-Amino-5-(4-methoxyphenyl)pyrazole serves as a versatile building block for heterocyclic synthesis, enabling efficient access to pyrazole-based scaffolds through standard coupling and functionalization protocols. The amino group facilitates derivatization via acylation, alkylation, or transition-metal-catalyzed cross-coupling, while the 4-methoxyphenyl substituent enhances solubility and provides a handle for further modification. Bench-stable and readily purified by recrystallization, it functions effectively in medicinal chemistry campaigns targeting kinase inhibitors and other bioactive molecules.
Synthesis
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Route1
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In-stock
3672-47-7 - ~97%
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In-stock
19541-95-8
References
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STRUCTURAL GENOMIX, INC. Patent: WO2005/68473 A1, 2005 ; Location in patent: Page/Page column 49-50 ; WO 2005/068473 A1
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Route2
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35070-82-7 - ~%
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In-stock
19541-95-8
References
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WO2007/17678 A1, ; Page/Page column 34; 37-38 ;
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Route3
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57466-68-9 - ~74%
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In-stock
19541-95-8
References
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Hartmann, Horst; Liebscher, Juergen Synthesis, 1984 , # 3 p. 276 - 277
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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 : H315-H319-H335
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Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P405-P501
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Quality Control
Computational Chemistry Data
- TPSA 63.93
- LogP 1.6675
- H_Acceptors 3
- H_Donors 2
- Rotatable_Bonds 2
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Key Words
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