4-CHLOROPHENOXYACETIC ACID

PRODUCT IDENTIFICATION
CAS NO. 122-88-3

4-CHLOROPHENOXYACETIC ACID

EINECS NO.204-581-3
FORMULA ClC6H4OCH2COOH
MOL WT. 186.59

H.S. CODE

 2918.99.4300

TOXICITY

 Oral rat LD50: 850 mg/kg
SYNONYMS (p-Chlorophenoxy)acetic acid; p-Chlorophenoxyacetic acid;
2-(4-Chloro-phenoxy)acetic acid; 4-CPA; Tomatotone; Kyselina 4-chlorfenoxyoctova; Parachlorophenoxyacetic acid; (4-Chlorophenoxy)acetic acid;
SMILES

c1(ccc(cc1)Cl)OCC(=O)O

CLASSIFICATION

 

EXTRA NOTES

 EPA Pesticide Chemical Code 019401

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to beige crystalline powder
MELTING POINT 156 - 159 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Slightly soluble

SOLVENT SOLUBILITY

soluble in most common organic solvents
pKa 3.58
VAPOR DENSITY

 

AUTOIGNITION

 

NFPA RATINGS

 Health: 1; Flammability: 0; Instability: 0

REFRACTIVE INDEX

 
FLASH POINT  
STABILITY

Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - 4-Chlorophenoxyacetic acid

Google Scholar Search - 4-Chlorophenoxyacetic acid

Drug Information Portal (U.S. National Library of Medicine) - 4-Chlorophenoxyacetic acid

PubChem Compound Summary - 4-Chlorophenoxyacetic acid

KEGG (Kyoto Encyclopedia of Genes and Genomes) - 4-Chlorophenoxyacetic acid

http://www.ebi.ac.uk/ - 4-Chlorophenoxyacetic acid

http://www.ncbi.nlm.nih.gov/ - 4-Chlorophenoxyacetic acid

Material Safety Data Sheet

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - 4-Chlorophenoxyacetic 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 with 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. Parent compounds of auxin action are;

  • Auxins
    • 4-Chlorophenoxyacetic acid (CAS RN: 122-88-3)
    • (2,4-Dichlorophenoxy)acetic acid (CAS RN: 94-75-7)
    • 4-(2,4-Dichlorophenoxy)butyric acid (CAS RN: 94-82-6)
    • Tris[2-(2,4-Dichlorophenoxy)ethyl] phosphite (CAS RN: 94-84-8)
    • 2-(2,4-Dichlorophenoxy)propanoic acid (CAS RN: 120-36-5)
    • 2-(2,4,5-trichlorophenoxy)propanoic acid (CAS RN: 93-72-1)
    • Indole-3-acetic acid (CAS RN: 87-51-4)
    • Indole-3-butyric acid (CAS RN: 133-32-4)
    • 1-Naphthaleneacetamide (CAS RN: 86-86-2)
    • 1-Naphthaleneacetic acid (CAS RN: 86-87-3)
    • 1-Naphthol (CAS RN: 90-15-3)
    • Naphthoxy acetic acid (CAS RN: 120-23-0)
    • Naphthenic acid, inorganic salts (potassium, sodium)
    • (2,4,5-Trichlorophenoxy) Acetic acid (CAS RN: 93-76-5)
  • Antiauxins
    • Clofibric acid (CAS RN: 882-09-7)
    • 2,3,5-Triiodobenzoic acid (CAS RN: 88-82-4)

Cytokinin is a N6-substituted adenines acting as phytohormones  such as kinetin, zeatin, 6-isopentenyladenine, benzyl adenine. The principal functions are stimulate cell division in concert with auxin (cytokinesis) and influence the pathway of tissue differentiation (organogenesis). 6-Benzylaminopurine is the first generation synthetic cytokinin which elicits plant growth and development responses setting blossoms and stimulating fruit richness by stimulating cell division. Active cytokinin ingredients include:

  • Adenine (CAS RN: 73-24-5)
  • Adenine Hemisulfate salt (CAS RN: 321-30-2)
  • 6-Benzylaminopurine (CAS RN: 1214-39-7(base), 162714-86-5(HCl)
  • N-Benzyl-9-(2-tetrahydropyranyl)adenine (CAS RN: 2312-73-4)
  • N-(2-Chloro-4-pyridyl)-N'-phenylurea (CAS RN: 68157-60-8)
  • 6-(gamma,gamma-Dimethylallylamino)purine (CAS RN: 2365-40-4)
  • 1,3-Diphenylurea (CAS RN: 102-07-8)
  • Kinetin (CAS RN: 525-79-1 (base), 177966-68-6 (HCl)
  • 1-Phenyl-3-(1,2,3-thiadiazol-5-yl) Urea (CAS RN: 51707-55-2)
  • Zeatin (CAS RN: 13114-27-7)
  • trans-Zeatin (CAS RN: 1637-39-4 (base), 6025-81-6 (HCl))
  • trans-Zeatin riboside (CAS RN: 6025-53-2)

Other Plant Growth Regulators include:

  • Abscisic acid (CAS RN: 21293-29-8)
  • Ancymidol (CAS RN: 12771-68-5)
  • Chlorocholine chloride (CAS RN: 999-81-5)
  • Daminozide (CAS RN: 1596-84-5)
  • 3,6-Dichloro-o-anisic acid (CAS RN: 1918-00-9)
  • Gibberellic acid (CAS RN: 77-06-5)
  • Gibberellic acid Potassium salt (CAS RN: 125-67-7)
  • Gibberellin A4 (CAS RN: 468-44-0  ) and other gibberellins (more than 110 gibberellins are known)
  • Glyphosate (CAS RN: 1071-83-6)
  • Jasmonic acid (CAS RN: 3572-66-5)
  • 1,3,5-Trihydroxybenzene (CAS RN: 108-73-6)

Phenoxy compounds and their alkali or amine salts or esters can be used as growth regulators by aqueous foliar sprays to reduce pre-harvest fruit drop, to increase the proportion of uniform sizes and to increase fruit storage term. Phenoxy compounds, however, may have poor selectivity, and are used as herbicides against broad-leaf weeds rather than growth regulators.

SALES SPECIFICATION

APPEARANCE

 white to beige crystalline powder

ASSAY

 99.0% min

LOSS ON DRYING

1.0% max
MELTING POINT 156 - 159 C
TRANSPORTATION
PACKING
 
HAZARD CLASS Not regulated
UN NO.  
SAFETY INFORMATION

HAZARD OVERVIEW

 

GHS

 
SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H302

P STATEMENTS

P280-P301 + P310

EC DIRECTIVES

 
HAZARD CODES

RISK PHRASES

22

SAFETY PHRASES

 

PRICE INFORMATION