ETHEPHON

PRODUCT IDENTIFICATION
CAS NO 16672-87-0

ETHEPHON

EINECS NO. 240-718-3
FORMULA ClC2H4P(=O)(OH)2
MOL WT. 144.49

H.S. CODE

 2931.90.9041

TOXICITY

  
SYNONYMS 2-Chloroethanephosphonic acid; Chlorethephon; Ethephon;
(Chloroethyl)phosphonate; ácido 2-cloroetilfosfónico; Acide 2-chloroéthylphosphonique; (2-Chloroethyl)phosphonic acid; 2-Cepa; 2-Chloraethyl-phosphonsaeure; Other RN: 55600-37-8, 73020-07-2, 82375-49-3
SMILES

C(P(=O)(O)O)CCl

CLASSIFICATION

Plant Growth Regulator

EXTRA NOTES

 EPA Pesticide Chemical Code 099801

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to yellow crystals
MELTING POINT 72 - 76 C
BOILING POINT

 

SPECIFIC GRAVITY

1.58

SOLUBILITY IN WATER Soluble

SOLVENT SOLUBILITY

 slightly soluble in benzene, toluene
pKa 2.5
VAPOR DENSITY

 

REFRACTIVE INDEX

 

AUTOIGNITION

 

NFPA RATINGS Health hazard: 4, Fire: 0, Reactivity Hazard: 0
FLASH POINT

 

STABILITY

Stable under ordinary conditions.

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Ethephon

Google Scholar Search - Ethephon

Drug Information Portal (U.S. National Library of Medicine) - Ethephon

PubChem Compound Summary - Ethephon

IPCS INCHEM -  Ethephon

KEGG (Kyoto Encyclopedia of Genes and Genomes) - Ethephon

http://www.ebi.ac.uk/ - Ethephon

http://www.ncbi.nlm.nih.gov/ - Ethephon

Material Safety Data Sheet

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - Ethephon

http://www.pesticideinfo.org/ - Ethephon

Local:
Auxin is one of five (or more) major plant hormones (Auxins, 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)

Ethephon is an ethylene releasers belong to plant hormone. Ehtylene promotes fruit ripenings, flower blooming and leaf cutting. Ethylene releasers are;

  • ACC [1-aminocyclopropanecarboxylic acid, CAS #::22059-21-8]
  • Etacelasil [6-(2-chloroethyl)-6-(2-methoxyethoxy)-2,5,7,10-tetraoxa-6-silaundecane,  CAS #: 37894-46-5]
  • Eethephon [(2-chloroethyl)phosphonic acid,  CAS #: 16672-87-0]
  • Glyoxime [ethanedial dioxime,  CAS #: 557-30-2]
SALES SPECIFICATION

APPEARANCE

 white to yellow crystals

PURITY

80.0% min
MELTING POINT 72 - 74 C
TRANSPORTATION
PACKING

 

HAZARD CLASS 6.1 (Packing Group: II)
UN NO. 2928
SAFETY INFORMATION

HAZARD OVERVIEW

Target Organ Effect, Highly toxic by inhalation, Corrosive. Hygroscopic. Causes eye and skin burns. May cause severe respiratory tract irritation with possible burns. May cause severe digestive tract irritation with possible burns. Harmful if absorbed through skin or if inhaled.. Target Organs:Central nervous system, Heart, Blood, Eyes 

GHS

 
SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H312-H314-H332-H412

P STATEMENTS

P273-P280-P305 + P351 + P338-P310

EC DIRECTIVES

 
HAZARD CODES

RISK PHRASES

20/21-34-52/53

SAFETY PHRASES

26-28-36/37/39-45-61

PRICE INFORMATION