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1-Naphthalene acetic acid

Basic information Description References Safety Related Supplier
1-Naphthalene acetic acid Basic information
1-Naphthalene acetic acid Chemical Properties
  • Melting point:141-143 °C(lit.)
  • Boiling point:280.69°C (rough estimate)
  • Density 1.1032 (rough estimate)
  • refractive index 1.6010 (estimate)
  • Flash point:>100°C
  • storage temp. 2-8°C
  • solubility acetone: 50 mg/mL, clear
  • form crystalline
  • color light yellow
  • PH3.0 (0.6g/l, H2O, 25℃)
  • Water Solubility Slightly soluble in water, ethanol, acetone, chloroform and ether.
  • Merck 14,6371
  • BRN 1308415
  • InChIKeyPRPINYUDVPFIRX-UHFFFAOYSA-N
  • CAS DataBase Reference86-87-3(CAS DataBase Reference)
  • NIST Chemistry Reference1-Naphthaleneacetic acid(86-87-3)
  • EPA Substance Registry System1-Naphthaleneacetic acid(86-87-3)
Safety Information
MSDS
1-Naphthalene acetic acid Usage And Synthesis
  • Description1-naphthaleneacetic acid (NAA, also named as α-naphthaleneacetic acid) belongs to a class of organic compounds of naphthalenes, which contain a naphthalene moiety of two fused benzene rings. NAA is a synthetic auxin plant hormone. It is used as a plant growth regulator to control preharvest fruit drop, flower induction and fruit thinning in various crops such as apples, potatoes, olives, and citrus fruits. It is used as a rooting agent and used for the vegetative propagation of plants from stem and leaf cutting. It is also used for plant tissue culture and as herbicide. Applied as a dust or spray it delays dissolution of the abscission layer, retarding the fruit drop. The effect of NAA on plant growth is greatly dependent on the time of admission and concentration. When used after four weeks, NAA stimulates shoot growth, while full-time use limits growth. When used in a 4-week pulse, adventitious root growth is greatly increased.
  • References[1] https://en.wikipedia.org/wiki/1-Naphthaleneacetic_acid
    [2] http://pmep.cce.cornell.edu/profiles/herb-growthreg/naa-rimsulfuron/naa/herb-prof-naa.html
  • Chemical Properties1-Naphthalene acetic acid is Light yellow crystals
  • Chemical Properties1-Naphthalene acetic acid  is a white crystalline solid, needles, powder, or colorless liquid. Odorless.
  • UsesInducing rooting of plant cuttings, spraying apple trees to prevent early drop, fruit thinner.
  • Definition1-Naphthalene acetic acid is a naphthylacetic acid substituted by a carboxymethyl group at position 1.
  • HazardSkin irritant.
  • Agricultural UsesPlant growth regulator: An agent for thinning fruit sets in apples, pears, olives and some citrus. Induces root formation on cuttings and transplants. Inhibits fruit drops. Not currently registered in EU countries (pending). Registered for use in the U.S. and Canada.
  • Trade nameAGRONAA®; ALCO® NAA; ALPHASPRA ®; AMCOTONE® APPL-SET®; CELMONE®; DESTRUXOL®; DIP’N GROW®; FRUITONE®; GOLDENGRO®; HORMEX®; KLINGTITE®; LIQUISTIK ®; NAA 800®; NAFUSAKU®; NIAGARASTIK ®; NU-TONE®; PARMONE®; PHYMONE®; PIMACOL-SOL®; PLANOFIX®; PLUCKER®; PRIMACOL®; RHIZOPON B ROOTING POWDER; ROOTONE® (component, with Indole-3-butyric acid and 1-Naphthaleneacetamide); STAFAST®; STIK®; STOPDROP ®; TEKKAM®; TIPOFF®; TRANSPLANTONE® (component, with 1-Naphthaleneacetamide); TREHOLD ®; VARDHAK®
  • Safety ProfilePoison by intraperitoneal route. Moderately toxic by ingestion. Mutation data reported. A skin, mucous membrane, and severe eye irritant. Can cause depression. A pesticide, When heated to decomposition it emits acrid smoke and irritating fumes.
  • Potential Exposure1-Naphthalene acetic acid is a carboxylic acid plant growth regulator used for thinning fruit sets in apples, pears, olives, and some citrus. Induces root formation on cuttings and transplants. Inhibits fruit drops. Not currently registered in EU countries (may be pending).
  • ShippingUN1759 Corrosive solids, n.o.s., Hazard Class: 8; Labels: 8-Corrosive material, Technical Name Required.
  • Purification MethodsCrystallise the acid from EtOH or water. [Beilstein 9 H 666, 9 IV 2424.]
  • IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, chlorates nitrates, ammonia, aliphatic amines, alkanolamines, isocyanates, alkylene oxides, epichlorohydrin. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides (releasing heat, toxic, and possibly flammable gases), thiosulfates and dithionites (releasing hydrogen sulfate and oxides of sulfur).
  • Waste DisposalIncineration. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers.
1-Naphthalene acetic acid Preparation Products And Raw materials
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