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    Related: Plant Growth Regulator Gibberellic Acid NAA
    • 2-Naphthoxyacetic Acid CAS 120-23-0

    2-Naphthoxyacetic Acid CAS 120-23-0

    2-Naphthoxyacetic Acid (BNOA, 2-NOA), CAS 120-23-0, is a synthetic auxin-type plant growth regulator supplied as a 98% technical active for agrochemical formulations. Confirm the required specification, then request a quotation with COA/TDS/SDS for bulk supply.

    • CAS: 120-23-0
    • Synonyms: BNOA, (2-naphthalenyloxy)acetic acid, beta-naphthoxyacetic acid, O-2-naphthylglycolic acid, 2-naphthalen-2-yloxyacetic acid
    • Einecs: 204-380-0
    • Molecular Formula: C₁₂H₁₀O₃
    • Package: 25 kg fiber drum or 1 kg aluminum foil bag, inner PE liner; other packing on request
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    Product Description

    2-Naphthoxyacetic Acid, CAS 120-23-0, also known as BNOA or 2-NOA, is a synthetic auxin-type plant growth regulator; the EC/EINECS number is 204-380-0.

    Synonyms: BNOA; (2-naphthalenyloxy)acetic acid; beta-naphthoxyacetic acid; O-2-naphthylglycolic acid; 2-naphthalen-2-yloxyacetic acid.

    CAS: 120-23-0.

    Molecular formula: C₁₂H₁₀O₃.

    Molecular weight: 202.21.

    EC number: 204-380-0.

    It is supplied as a 98% technical (TC) active ingredient, a gray to off-white crystalline powder with a melting point of about 151–157 °C and an assay typically ≥98.0% by HPLC/GC.

    It is slightly soluble in water and soluble in alcohols, ether, acetic acid and DMSO; the log P (octanol/water) is about 2.5 and the pKa is about 3.2–3.6.

    The density is about 1.19 g/cm³ and the vapor pressure is about 2.9 × 10⁻³ mPa (very low volatility); store below 30 °C in a cool, dry place.

    It is used as an auxin-type plant growth regulator on tomato, grape, pepper and eggplant to improve fruit set and reduce flower and young-fruit drop.

    It is used on apple, pear and other fruit trees to enhance fruit-setting rate and improve fruit size and color uniformity.

    It is used on strawberry, blackberry and pineapple to support fruit enlargement and commercial appearance; it is intended for agrochemical formulation or R&D use.

    Confirm assay, appearance, melting range, water, residue on ignition, related impurities and residual solvents; verify the assay and physical form match the intended agrochemical formulation.

    Store below 30 °C in tightly closed containers in a cool, dry, well-ventilated area, away from strong oxidizers; use powder-handling controls and suitable PPE.

    Confirm the current product-specific specification.

    Confirm packaging with the requested quantity and destination requirements.

    Document requirements should be confirmed from the current specification, SDS, COA or other product-specific files.

    The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

    For an RFQ, state the intended use, required specification, quantity, packaging, destination and document needs.

    FAQ - Technical & Supply Chain

    • Q:

      What is 2-Naphthoxyacetic Acid CAS 120-23-0?

      A: 2-Naphthoxyacetic Acid is a synthetic auxin-type plant growth regulator. It is supplied as a technical-grade active ingredient for agrochemical formulations and has the molecular formula C₁₂H₁₀O₃.
    • Q:

      Are BNOA and 2-NOA the same product?

      A: Yes. BNOA, beta-naphthoxyacetic acid, and 2-NOA all refer to 2-Naphthoxyacetic Acid CAS 120-23-0. They should not be confused with 1-naphthoxyacetic acid or other naphthaleneacetic acid derivatives.
    • Q:

      What crops and effects is 2-Naphthoxyacetic Acid used for?

      A: It is used in plant growth regulator products for crops such as tomato, grape, strawberry, blackberry, and pineapple. Typical agronomic targets include improving fruit set, reducing premature fruit drop, and supporting fruit size and color development.
    • Q:

      What specifications should be checked before ordering?

      A: Confirm assay, appearance, melting range, water, residue on ignition, related impurities, and residual solvents. For this technical-grade material, also verify that the assay and physical form match the intended agrochemical formulation.
    • Q:

      How should 2-Naphthoxyacetic Acid be stored and handled?

      A: Store below 30 °C in tightly closed containers in a cool, dry, well-ventilated area, away from strong oxidizers and incompatible materials. Use appropriate powder-handling controls to limit dust and direct skin or eye contact.

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