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Name S,S,S-Tributyl trithiophosphite
EINECS205-761-4
CAS No. 150-50-5
Densityg/cm³
PSA89.49000
LogP6.81320
SolubilityN/A
Melting Point100°C
FormulaC12H27 P S3
Boiling Point380.3 ºC at 760 mmHg
Molecular Weight298.518
Flash Point183.8 ºC
Transport InformationN/A
AppearanceN/A
SafetyPoison 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 PO_x and SO_x. Used as a defoliant. See also PARATHION.
Risk CodesN/A
Molecular Structure
Hazard SymbolsCholinesterase inhibitor.
SynonymsCholinesterase inhibitor.
Article Data21

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)	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 PO_x and SO_x.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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Product Name

S,S,S-Tributyl trithiophosphite

S,S,S-Tributyl trithiophosphite Chemical Properties

S,S,S-Tributyl trithiophosphite Uses

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

S,S,S-Tributyl trithiophosphite Safety Profile

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