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2-Naphthoxyacetic acid

2-Naphthoxyacetic acid (CAS 120-23-0) is a strategically functionalized naphthalene derivative engineered for plant growth regulationagrochemical development, and organic synthesis applications. This molecule integrates a 2-naphthol core—a fused bicyclic aromatic system with extended π-conjugation—with an oxyacetic acid side chain at the C2 position, creating an auxin-like pharmacophore that mimics natural indole-3-acetic acid (IAA). The ether linkage between the naphthalene ring and acetic acid moiety provides enhanced metabolic stability compared to direct aryl-acetic acid analogs, while the carboxylic acid terminus enables salt formation, esterification, or amide coupling for formulation optimization. This intermediate is particularly valuable for constructing rooting promotersfruit-setting agents, and parthenocarpy inducers in agricultural biotechnology, as well as serving as a versatile building block for pharmaceutical scaffold synthesis and fluorescent probe development. Manufactured with purity ≥98% under controlled conditions, it supports agrochemical research programs requiring reliable auxin-mimetic compounds with tunable lipophilicity and environmental persistence.

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Product Name
2-Naphthoxyacetic acid
CAS Number
120-23-0
Chinese Name
2-萘氧基乙酸
Synonyms
β-Naphthoxyacetic acid; 2-(2-Naphthyloxy)acetic acid; Naphthalen-2-yloxyacetic acid; C₁₂H₁₀O₃ aromatic acid
Chinese Synonyms
β-萘氧基乙酸; 2-(2-萘基氧基) 乙酸; 萘 -2-基氧基乙酸; 萘氧乙酸
Molecular Formula
C₁₂H₁₀O₃
Molecular Weight
202.21 g/mol
Purity
≥ 98% (HPLC area normalization)
Product Category
Agrochemical Intermediates / Plant Growth Regulators / Naphthalene Derivatives
Appearance
White to Off-white Crystalline Powder
Melting Point
154-157°C (literature)
pKa
~3.5-4.0 (carboxylic acid, estimated)
Storage Conditions
Store in a cool, dry, well-ventilated area away from light and moisture. Keep container tightly closed. Protect from strong oxidizing agents and bases to avoid decarboxylation or ether cleavage.
Shelf Life
24 months under recommended storage conditions
Packaging
100g/bottle, 500g/bottle, 1kg/bottle, 5kg/drum, or customized according to customer requirements
Applications
Plant rooting promoter, fruit-setting agent, parthenocarpy inducer, agrochemical formulation development, auxin receptor research, pharmaceutical scaffold synthesis, fluorescent probe precursor
Reactivity
Suitable for esterification, amide coupling, salt formation with organic/inorganic bases, electrophilic aromatic substitution on naphthalene ring, and ether linkage stability studies
Special Note
Auxin-Mimetic Scaffold—naphthalene core provides enhanced lipophilicity vs. indole analogs. Ether linkage offers metabolic stability. Part of our plant growth regulator series.