Lot numbers can be found on the outside label of a product:
4-Methylthiophene-2-carboxylic acid
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CAS No. 14282-78-1
- Cat. No. CS-0036630
- Purity≥98%
- MDL No.None
*For research and further manufacturing use only, not for direct human use.
Structure of 14282-78-1
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General Information
- CAS No. 14282-78-1
- Cat. No. CS-0036630
- Purity ≥98%
- MDL No. None
- Storage 4°C
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₆H₆O₂S
- Molecular Weight 142.18
- Synonym(s) 4-methylthiophen-2-carboxlic acid
- SMILES CC1=CSC(=C1)C(=O)O
Description
4-Methylthiophene-2-carboxylic acid features a thiophene ring bearing a methylthio group at the 4-position and a carboxylic acid at the 2-position, offering a distinct combination of electron-rich heterocyclic character and polar functionality. This structure enables direct incorporation into bioactive scaffolds and conjugated materials, particularly where enhanced solubility and stability are required under standard bench conditions.
Application
4-Methylthiophene-2-carboxylic acid serves as a versatile building block for bioactive heterocycles and pharmaceutical intermediates. Its thiophene core provides enhanced metabolic stability and π-stacking capability, while the carboxylic acid functionality enables direct coupling reactions or derivatization via standard amide, ester, or acyl chloride transformations. The methyl group at the 4-position offers a handle for selective functionalization and contributes to favorable solubility and crystallinity during purification. This compound exhibits good bench stability and compatibility with common reaction conditions in medicinal chemistry workflows.
Synthesis
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Route1
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124-38-9 - ~84%
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In-stock
14282-78-1
References
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AGOURON PHARMACEUTICALS, INC. Patent: US2004/266796 A1, 2004 ; Location in patent: Page 12-13 ;
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Route2
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910322-09-7
- ~94%
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In-stock
14282-78-1
References
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VICURON PHARMACEUTICALS INC. Patent: US2006/211603 A1, 2006 ; Location in patent: Page/Page column 54 ;
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Route3
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616-44-4
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124-38-9
- ~77%
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In-stock
14282-78-1
References
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AGOURON PHARMACEUTICALS, MINC. Patent: US2005/85492 A1, 2005 ; Location in patent: Page/Page column 25 ;
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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 : H317-H319
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Precautionary Statements : P261-P264-P272-P280-P302+P352-P363-P501
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Quality Control
Computational Chemistry Data
- TPSA 37.3
- LogP 1.75472
- H_Acceptors 2
- H_Donors 1
- Rotatable_Bonds 1
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Key Words
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