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    (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid, CAS 203866-20-0, is in stock from AChemBlock as a research-use heterocyclic building block.
    Chemical structure of (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid , CAS 203866-20-0, AChemBlock S77347

    (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid

    Catalog ID: S77347

    Product Name: (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid
    CAS: 203866-20-0
    MDL: MFCD03424224
    Purity: 97%
    Appearance: White to Off-White Powder
    FW: 355.37
    Formula: C₂₀H₁₈FNO₄
    Smiles: O=C(O)[C@@H]1C[C@@H](F)CN1C(=O)OCC1C2=C(C=CC=C2)C2=C1C=CC=C2
    (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid 97%, CAS#: 203866-20-0, Cat ID: S77347, BUILDING BLOCKS, AChemBlock
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    For research use only. We do not sell to patients
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    Packaging:1G List Price: $55 Quantity:
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    Aug 03,2026

    Packaging:5G List Price: $155 Quantity:
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    Packaging:25G List Price: $520 Quantity:
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    Aug 03,2026

    update on 07-31-2026

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    Safety Information
    Safety Information
    Pictograms GHS07
    Signal Word Warning
    Hazard Statements Causes skin irritation
    May cause an allergic skin reaction
    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 97%
    Appearances White to Off-White Powder
    Storage Store at 0-8 °C
    Shipping Room Temp.
    MSDS Download MSDS
    IUPAC Name (2s,4r)-1-(((9h-fluoren-9-yl)methoxy)carbonyl)-4-fluoropyrrolidine-2-carboxylic acid
    HTS Code 29339982
    Smiles O=C(O)[C@@H]1C[C@@H](F)CN1C(=O)OCC1C2=C(C=CC=C2)C2=C1C=CC=C2
    InChiKey CJEQUGHYFSTTQT-XIKOKIGWSA-N
    Product Description (2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-fluoropyrrolidine-2-carboxylic acid (CAS 203866-20-0, Catalog ID S77347) 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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