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Products >> Plant Growth Regulator >> 2-naphthyloxyacetic acid

2-naphthyloxyacetic acid

2-naphthyloxyacetic acid NOMENCLATURE
Common name (2-naphthyloxy)acetic acid (BSI, E-ISO, accepted in lieu of a common name); acide naphtyloxyacétique (F-ISO)
IUPAC name 2-naphthyloxyacetic acid 
Chemical Abstracts name (2-naphthalenyloxy)acetic acid 
Other names BNOA  CAS RN [120-23-0] 

2-naphthyloxyacetic acid PHYSICAL CHEMISTRY
Mol. wt. 202.2  M.f. C12H10O3  Form Colourless crystals; (tech., green crystals).  M.p. 156 ºC  Solubility Sparingly soluble in water. Soluble in ethanol, acetic acid, and diethyl ether. Forms water-soluble alkali-metal and amine salts. 

2-naphthyloxyacetic acid COMMERCIALISATION
History Effect of increasing fruit set reported by S. C. Bausor (Am. J. Bot., 1939, 26, 415). Introduced by Synchemicals Ltd.  Manufacturers Cyclo; Hockley; Sharda

2-naphthyloxyacetic acid APPLICATIONS
Mode of action Plant growth regulator, absorbed by the leaves and roots.  Uses Used as a fruit setting spray on tomatoes, strawberries, blackberries, capsicums, aubergines, grapes, and pineapples. Formulation types EC; SL.  Selected products: 'Betapal' (Unicrop, Vitax); 'ViTNQ' (Vipesco); mixtures: 'Vikipi' (+ copper sulfate+ 1-naphthylacetic acid) (Vipesco)

OTHER PRODUCTS
Mixtures: 'Vimix' (+ validamycin+ 1-naphthylacetic acid) (Vipesco); 'Vipac 88' (+ copper sulfate+ 1-naphthylacetic acid) (Vipesco); 'Viprom' (+ copper sulfate+ 1-naphthylacetic acid) (Vipesco) Discontinued products: 'Tomatosa' * (Productos OSA); 'Ujotin' * (Bitterfeld)

2-naphthyloxyacetic acid ANALYSIS
Residues determined by hplc (T. E. Archer & J. D. Stokes, J. Agric. Food Chem., 1978, 26,452). 

MAMMALIAN TOXICOLOGY
Oral Acute oral LD50 for rats 1000 mg/kg.  Toxicity class WHO (a.i.) III 

ECOTOXICOLOGY
Bees Not toxic to bees. 

ENVIRONMENTAL FATE
Plants In plants, undergoes degradation to 2-naphthol, followed by ring hydroxylation and ring opening. 

 

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