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    1-tert-Butyl-1H-pyrazole-4-carboxylic acid, CAS 950858-65-8, is in stock from AChemBlock as a research-use heterocyclic building block.
    Chemical structure of 1-tert-Butyl-1H-pyrazole-4-carboxylic acid , CAS 950858-65-8, AChemBlock A-657

    1-tert-Butyl-1H-pyrazole-4-carboxylic acid

    Catalog ID: A-657

    Product Name: 1-tert-Butyl-1H-pyrazole-4-carboxylic acid
    CAS: 950858-65-8
    MDL: MFCD09934934
    Purity: 95%
    Appearance: off-white solid
    FW: 168.2
    Formula: C₈H₁₂N₂O₂
    Smiles: CC(C)(C)N1C=C(C(=O)O)C=N1
    1-tert-Butyl-1H-pyrazole-4-carboxylic acid 95%, CAS#: 950858-65-8, Cat ID: A-657, BUILDING BLOCKS, AChemBlock
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    For research use only. We do not sell to patients
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    Packaging List / Sale Price Qty Total Total_Price($) Availability Estimated Ship Time
    Packaging:1G List Price: $48 / $42 Quantity:
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    Jul 31,2026

    Packaging:5G List Price: $143 / $129 Quantity:
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    Jul 31,2026

    Packaging:25G List Price: $491 / $441 Quantity:
    		Total:-- Total_Price($):-- Availability: In Stock San Francisco Estimated Ship Time:

    Jul 31,2026

    update on 07-30-2026

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    Safety Information
    Safety Information
    Pictograms GHS07
    Signal Word warning
    Hazard Statements Harmful if swallowed
    Causes skin irritation
    Causes serious eye irritation
    May cause respiratory irritation
    Precautionary Statements Avoid breathing dust/fume/gas/mist/vapours/spray.
    Wear protective gloves/protective clothing/eye protection/face protection.
    Product Information
    Product Information
    Product Information
    Purity 95%
    Appearances off-white solid
    Storage Store at Room Tem.
    Shipping Room Temp
    MSDS Download MSDS
    IUPAC Name 1-(tert-butyl)-1h-pyrazole-4-carboxylic acid
    HTS Code 2933199000
    Smiles CC(C)(C)N1C=C(C(=O)O)C=N1
    InChiKey UQRFFZHSJYVBMX-UHFFFAOYSA-N
    Product Description 1-tert-Butyl-1H-pyrazole-4-carboxylic acid (CAS 950858-65-8, Catalog ID A-657) is in stock from AChemBlock. This product is listed for research use and can support medicinal chemistry, organic synthesis, and laboratory research applications. Please contact AChemBlock for quotation, pack size, purity, COA, SDS, and lead-time information.
    Product Application Used as a research-use heterocyclic building block for medicinal chemistry, organic synthesis, and drug discovery research.
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