1-NAPHTHALENEACETIC ACID

PRODUCT IDENTIFICATION
CAS NO. 86-87-3

1-NAPHTHALENEACETIC ACID

EINECS NO. 201-705-8
FORMULA C10H7CH2COOH
MOL WT. 186.21

H.S. CODE

2916.39.7900

TOXICITY

 Oral rat LD50: 1000 mg/kg
SYNONYMS alpha-Naphthaleneacetic acid; Acide 1-naphtylacétique;
Naphthylacetic acid; 1-Naphthylacetic acid; Planofix; alpha-Naphthylacetic Acid; Naphthaleneacetic acid; Naphthalene-1-acetic acid; Naphthylessigsaeure; 1-Naphthylessigsäure; ácido 1-naftilacético; Fruitone; NAA;

SMILES

c12c(cccc1CC(O)=O)cccc2

CLASSIFICATION

Auxin, Plant Growth regulator, Fertilizer. Herbicide

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white to off white crystals
MELTING POINT 129 - 132 C
BOILING POINT

 

SPECIFIC GRAVITY

 

SOLUBILITY IN WATER 0.38 g/l
VAPOR DENSITY

 

REFRACTIVE INDEX

 

AUTOIGNITION

 

pKa 4.23 (Dissociation Constant at 20 C)
log Pow 2.24 (Octanol-water)
VAPOR PRESSURE 1.59E-05 (mmHg at 25 C)
HENRY'S LAW 1.17E-09 (atm-m3/mole at 25 C)
OH RATE 3.70E-11 (cm3/molecule-sec at 25 C Atmospheric)
NFPA RATINGS Health hazard: 2, Fire: 0, Reactivity Hazard: 0
FLASH POINT

 

STABILITY

Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Google Scholar Search - 1-Naphthaleneacetic acid

Drug Information Portal (U.S. National Library of Medicine) - alpha-Naphthylacetic acid

PubChem Compound Summary - 1-Naphthaleneacetic acid

KEGG (Kyoto Encyclopedia of Genes and Genomes) - 1-Naphthaleneacetic acid

http://www.ebi.ac.uk/ - 1-Naphthaleneacetic acid

http://www.ncbi.nlm.nih.gov/ - 1-Naphthaleneacetic acid

Material Safety Data Sheet

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - 1-Naphthaleneacetic acid

Local:
Auxin is one of five (or more) major plant hormones (Auxin, Cytokinins, Gibberellins, Ethylene and Abscisic acid) which affect numerous plant growth processes functions including cell division and elongation, autumnal loss of leaves, and the formation of buds, roots, flowers, and fruit. Auxin action is inhibited by light which is an important role of the growth of stems toward light (phototropism), against the force of gravity (geotropism) and positively hydrotropic (moisture-seeking). The cells exposed to light don't grow as quickly as those on the shaded side, and thus the plant grows toward the light source. Auxins usually have a ring system having at least one double bond and attached by a side-chain that terminates in a carboxyl group. Indole acetic acid is the exact structure of Auxin activity. Other parent compounds of auxin action are Indole-3-butyric acid, Indole-3-propionic acid, alpha-Naphthalene acetic acid, 2,4-Dichlorophenoxy acetic acid and benzoic acid. 1-Napthalene Acetic acid and its sodium and potassium salts is used as a plant growth regulator for root cuttings and for fruit thinning agent (inducing abscission of flower buds).

FRUIT THINNING AGENTS:

  • 2-Chloroethyl phoshonic acid (Ethephon, Rhone-Poulenc)
  • 1-Napthalene Acetic acid and its sodium and potassium salts (Fruitone N, AMVAC)
  • Isopropyl Ester of 2,4-Dichlorophenoxyacetic Acid (Citrus Fix, ALCO)
  • N-(Phenyl)-1H-purine 6-amine (Accel, Abbott)
  • 1-Napthyl (N-) methylcarbamate (Carbaryl, Rhone-Poulenc)
  • 2-(Dimethylamino)-N-[[(methylamino)carbonyl]oxy]-2-oxoethanoimido- thioic acid methyl ester (Oxamyl, DuPont) 
SALES SPECIFICATION

APPEARANCE

 white to off white crystals

ACTIVE CONTENT

98.0% min
MELTING POINT 129 - 132 C
TRANSPORTATION
PACKING

 

HAZARD CLASS  
UN NO. Not dangerous goods
SAFETY INFORMATION

HAZARD OVERVIEW

Target Organ Effect, May be harmful if swallowed. May cause skin and respiratory tract irritation. Target Organs: Central nervous system.  

GHS

 
SIGNAL WORD Danger

PICTOGRAMS

HAZARD STATEMENTS

H302-H315-H318-H335

P STATEMENTS

P261-P280-P305 + P351 + P338

EC DIRECTIVES

 
HAZARD CODES

RISK PHRASES

22-37/38-41

SAFETY PHRASES

22-26-36

PRICE INFORMATION