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Substance Name: Ethephon [ANSI]
RN: 16672-87-0
UNII: XU5R5VQ87S
InChIKey: UDPGUMQDCGORJQ-UHFFFAOYSA-N

Classification Codes

  • Agricultural Chemical
  • Growth Regulator / Fertilizer
  • Growth Substances
  • Plant Growth Regulators

Molecular Formula

  • C2-H6-Cl-O3-P

Molecular Weight

  • 144.4934
 
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Names and Synonyms

Results Name

  • Ethephon [ANSI]

Name of Substance

  • Ethephon

Synonyms

  • (2-Chloroethyl)phosphonic acid
  • 2-Cepa
  • 2-Chloraethyl-phosphonsaeure
  • 2-Chloraethyl-phosphonsaeure [German]
  • 2-Chloroethanephosphonic acid
  • 2-Chloroethylphosphonic acid
  • 3-04-00-01780 (Beilstein Handbook Reference)
  • Acide chloro-2-ethyl-phosphonique
  • Acide chloro-2-ethyl-phosphonique [French]
  • Amchem 68-250
  • BRN 1751208
  • Bromeflor
  • Bromoflor
  • Camposan
  • Caswell No. 426A
  • CEP
  • CEPA
  • Cepha
  • Cepha 10LS
  • Cerone
  • Chipco Florel PRO
  • Chlorethephon
  • Chloroethylphosphonic acid
  • EINECS 240-718-3
  • EPA Pesticide Chemical Code 099801
  • Ethefon
  • Ethel
  • Ethephon
  • Ethephon [ANSI]
  • Ethepon
  • Etheverse
  • Ethrel
  • Ethrel C
  • Flordimex
  • Florel
  • Florel Plant Growth
  • Floridex
  • G 996
  • Gagro
  • HSDB 2618
  • Kamposan
  • Prep
  • Roll-Fruct
  • Terpal
  • Tomathrel
  • UNII-XU5R5VQ87S

Systematic Names

  • 2-Chloroethylphosphonic acid
  • Phosphonic acid, (2-chloroethyl)-

Superlist Name

  • Ethephon

Registry Numbers

CAS Registry Number

  • 16672-87-0

FDA UNII

  • XU5R5VQ87S

Other Registry Numbers

  • 55600-37-8
  • 73020-07-2
  • 82375-49-3

System Generated Number

  • 0016672870

Structure Descriptors

InChI

1S/C2H6ClO3P/c3-1-2-7(4,5)6/h1-2H2,(H2,4,5,6)

InChIKey

UDPGUMQDCGORJQ-UHFFFAOYSA-N

Smiles

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

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 4200mg/kg (4200mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(8), Pg. 79, 1983.
mammal (species unspecified) LD50 unreported 4200mg/kg (4200mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 384, 1971.
mouse LD50 intraperitoneal > 1500mg/kg (1500mg/kg)   Journal of Agricultural and Food Chemistry. Vol. 39, Pg. 380, 1991.
mouse LD50 oral 2850mg/kg (2850mg/kg)   Pharmazie. Vol. 32, Pg. 181, 1977.
quail LD50 oral 1072mg/kg (1072mg/kg)   Pesticide Manual. Vol. 9, Pg. 341, 1991.
rabbit LD50 oral 5gm/kg (5000mg/kg) BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(8), Pg. 79, 1983.
rabbit LD50 skin 5730mg/kg (5730mg/kg)   "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976Vol. -, Pg. -, 1971/1976.
rat LC50 inhalation 90mg/m3/4H (90mg/m3)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1120, 1986.
rat LD50 oral 3400mg/kg (3400mg/kg)   Zhurnal Eksperimental'noi i Klinicheskoi Meditsiny. Journal of Experimental and Clinical Medicine. Vol. 20, Pg. 274, 1980.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 74 deg C   EXP
Boiling Point 265 dec deg C   EXP
pKa Dissociation Constant 2.5 (none)   EXP
log P (octanol-water) -0.22 (none)   EXP
Water Solubility 1.00E+06 mg/L 23 EXP
Vapor Pressure 9.80E-08 mm Hg 25 EXP
Henry's Law Constant 5.70E-12 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 1.05E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.