Product Name

  • Name

    MERPHOS

  • EINECS 205-761-4
  • CAS No. 150-50-5
  • Article Data21
  • CAS DataBase
  • Density g/cm3
  • Solubility
  • Melting Point 100°C
  • Formula C12H27 P S3
  • Boiling Point 380.3 ºC at 760 mmHg
  • Molecular Weight 298.518
  • Flash Point 183.8 ºC
  • Transport Information
  • Appearance
  • Safety Poison by intraperitoneal route. Moderately toxic by ingestion and skin contact. A cholinesterase inhibitor. Combustible when exposed to heat or flame. Can react vigorously with oxidizing materials. When heated to decomposition it emits highly toxic fumes of POx and SOx. Used as a defoliant. See also PARATHION.
  • Risk Codes
  • Molecular Structure Molecular Structure of 150-50-5 (MERPHOS)
  • Hazard Symbols Cholinesterase inhibitor.
  • Synonyms Butylphosphorotrithioite (6CI); Butyl phosphorotrithioite ((BuS)3P); Folex; Merphos;NSC 27720; Tributyl phosphorotrithioite; Tributyl trithiophosphite;Tris(butylthio)phosphine
  • PSA 89.49000
  • LogP 6.81320

S,S,S-Tributyl trithiophosphite Chemical Properties

IUPAC Name: Tris(butylsulfanyl)phosphane
The MF of S,S,S-Tributyl trithiophosphite (CAS NO.150-50-5) is C12H27PS3.

                                
The MW of S,S,S-Tributyl trithiophosphite (CAS NO.150-50-5) is 298.51.
Synonyms of S,S,S-Tributyl trithiophosphite (CAS NO.150-50-5): Chemagro B 1776 ; merphos ; Phosphorotrithious acid, tributyl ester ; Trithiophosphite de tributyle
Apperance: Emulsifiable oil
Flash Point: 183.8 °C
Boiling Point: 380.3 °C

S,S,S-Tributyl trithiophosphite Uses

 S,S,S-Tributyl trithiophosphite (CAS NO.150-50-5) is used as cotton defoliants.

S,S,S-Tributyl trithiophosphite Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 850mg/kg (850mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 27(8), Pg. 97, 1962.
mouse LD50 intraperitoneal 1400mg/kg (1400mg/kg)   Biochemical Pharmacology. Vol. 12, Pg. 73, 1963.
mouse LD50 oral 635mg/kg (635mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 27(8), Pg. 97, 1962.
rabbit LD50 oral 170mg/kg (170mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 27(8), Pg. 97, 1962.
rabbit LD50 skin > 4600mg/kg (4600mg/kg)   Pesticide Manual. Vol. 8, Pg. 819, 1987.
rat LD50 intraperitoneal 70mg/kg (70mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1117, 1986.
rat LD50 oral 910mg/kg (910mg/kg)   Toxicology and Applied Pharmacology. Vol. 14, Pg. 515, 1969.
rat LD50 skin 615mg/kg (615mg/kg)   World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat LD50 unreported 350mg/kg (350mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 308, 1971.

S,S,S-Tributyl trithiophosphite Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion and skin contact. A cholinesterase inhibitor. Combustible when exposed to heat or flame. Can react vigorously with oxidizing materials. When heated to decomposition it emits highly toxic fumes of POx and SOx.Safety information of S,S,S-Tributyl trithiophosphite (CAS NO.150-50-5):
RIDADR  3278
HazardClass  6.1(b)
PackingGroup  III

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