CAS No.3383-96-8,Temephos Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	3383-96-8
Name:	Temephos
Article Data:	5

Formula:	C₁₆H₂₀O₆P₂S₃
Molecular Weight:	466.477
Synonyms:	Nephis 1G;O,O,O',O'-Tetramethyl O,O'-thiodi-p-phenylene phosphorothioate;Temefos;Phosphorothioic acid,Op,Op'-(thiodi-4,1-phenylene) Op,Op,Op',Op'-tetramethyl ester;Phosphorothioicacid, O,O-dimethyl ester, O,O-diester with 4,4'-thiodiphenol (7CI);Phosphorothioic acid, O,O'-(thiodi-4,1-phenylene) O,O,O',O'-tetramethyl ester(9CI);Phosphorothioic acid, O,O'-(thiodi-p-phenylene) O,O,O',O'-tetramethylester (8CI);AC 52160;Abate;Abathion;Azai-SS;Biothion;Biothon;Difenphos;Difos;Diphos;
EINECS:	222-191-1
Density:	1.4 g/cm³
Melting Point:	30-31 °C
Boiling Point:	518.5 °C at 760 mmHg
Flash Point:	267.4 °C
Solubility:	0.003 g/100 mL in water
Appearance:	White crystalline solid or liquid.
Hazard Symbols:	Xn, N
Risk Codes:	21/22-51/53
Safety:	22-37-61-60
Transport Information:	UN 3077
PSA:	164.48000
LogP:	6.93120

Synthetic route

: 2664-63-3
4,4'-Thiodiphenol

: 2524-03-0
dimethyl chlorothiophosphate

: 3383-96-8
temephos

Conditions

Conditions	Yield
With sodium methylate In chloroform; butanone

Raw Materials

2664-63-3

2524-03-0

Total:98 Page 1 of 3 1 2 3 Next>>

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Consensus Reports

Reported in EPA TSCA Inventory.

Standards and Recommendations

OSHA PEL: TWA Total Dust: 10 mg/m³; Respirable Fraction: 5 mg/m³
ACGIH TLV: TWA 10 mg/m³

Specification

Temephos, its cas register number is 3383-96-8. It also can be called Biothion; Bis-p-(O,O-dimethyl O-phenylphosphorothioate)sulfide; Bithion; Difenphos; Difos; Diphos; Diphos (pesticide); EPA Pesticide Chemical Code 059001; Etidronsaeure; Lypor; Nephis; Nimitex; O,O'-(Thiodi-4,1-phenylene) O,O,O',O'-tetramethyl di(phosphorothioate); Phenol, 4,4'-thiodi-, O,O-diester with O,O-dimethyl phosphorothioate; Procida; Swebat; Temefosum; Tetramethyl O,O'-thiodi-p-phenylene phosphorothioate. Temephos is a White crystalline solid or liquid. Temefos or Temephos(CAS NO.3383-96-8) (trade name Abate) is an organophosphate larvicide used to treat water infested with disease-carrying fleas. It is also used to control mosquito, midge, and black fly larvae. Temephos is also used in the Guinea Worm Eradication program to kill water fleas that carry guinea worm larvae.

Physical properties about Temephos are: (1)ACD/LogP: 5.96; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.96; (4)ACD/LogD (pH 7.4): 5.96; (5)ACD/BCF (pH 5.5): 19934.28; (6)ACD/BCF (pH 7.4): 19934.28; (7)ACD/KOC (pH 5.5): 41614.13; (8)ACD/KOC (pH 7.4): 41614.13; (9)#H bond acceptors: 6; (10)#Freely Rotating Bonds: 10; (11)Index of Refraction: 1.613; (12)Molar Refractivity: 115.908 cm³; (13)Molar Volume: 333.17 cm³; (14)Polarizability: 45.95 10-24cm³; (15)Surface Tension: 61.8219985961914 dyne/cm; (16)Density: 1.4 g/cm³; (17)Flash Point: 267.385 °C; (18)Enthalpy of Vaporization: 76.123 kJ/mol; (19)Boiling Point: 518.508 °C at 760 mmHg

When you are using this chemical, please be cautious about it as the following:
1. Do not breathe dust;
2. Wear suitable gloves;
3. Avoid release to the environment. Refer to special instructions safety data sheet;
4. This material and/or its container must be disposed of as hazardous waste;

You can still convert the following datas into molecular structure:
(1)InChI=1S/C16H20O6P2S3/c1-17-23(25,18-2)21-13-5-9-15(10-6-13)27-16-11-7-14(8-12-16)22-24(26,19-3)20-4/h5-12H,1-4H3;
(2)InChIKey=WWJZWCUNLNYYAU-UHFFFAOYSA-N;
(3)SmilesP(Oc1ccc(Sc2ccc(OP(OC)(OC)=S)cc2)cc1)(OC)(OC)=S;

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
bird - wild	LD50	oral	32mg/kg (32mg/kg)		Toxicology and Applied Pharmacology. Vol. 20, Pg. 57, 1971.
chicken	LD	subcutaneous	> 1gm/kg (1000mg/kg)	BEHAVIORAL: MUSCLE WEAKNESS	Archives of Environmental Health. Vol. 14, Pg. 283, 1967.
duck	LD50	oral	79mg/kg (79mg/kg)		Toxicology and Applied Pharmacology. Vol. 20, Pg. 57, 1971.
mammal (species unspecified)	LD50	oral	4700mg/kg (4700mg/kg)		Journal of the American Veterinary Medical Association. Vol. 152, Pg. 282, 1968.
mammal (species unspecified)	LD50	unreported	4gm/kg (4000mg/kg)		"Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 338, 1971.
mouse	LD50	intraperitoneal	683mg/kg (683mg/kg)	BEHAVIORAL: TREMOR BEHAVIORAL: ATAXIA BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)	Toho Igakkai Zasshi. Journal of Medical Society of Toho University. Vol. 16, Pg. 297, 1969.
mouse	LD50	oral	223mg/kg (223mg/kg)		Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 1, 1966.
pigeon	LD50	oral	50mg/kg (50mg/kg)		Toxicology and Applied Pharmacology. Vol. 20, Pg. 57, 1971.
quail	LD50	oral	75mg/kg (75mg/kg)		Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983.
rabbit	LD50	oral	313mg/kg (313mg/kg)		Veterinariya. Veterinary Science. Vol. 60(11), Pg. 63, 1984.
rabbit	LD50	skin	970mg/kg (970mg/kg)		Toxicological Information on Cyanamid Insecticides. Vol. 8/1966,
rat	LD50	intraperitoneal	912mg/kg (912mg/kg)	BEHAVIORAL: TREMOR BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS	Toho Igakkai Zasshi. Journal of Medical Society of Toho University. Vol. 16, Pg. 297, 1969.
rat	LD50	oral	1gm/kg (1000mg/kg)		Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 493, 1973.
rat	LD50	skin	1370mg/kg (1370mg/kg)		World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat	LD50	subcutaneous	2302mg/kg (2302mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)	Toho Igakkai Zasshi. Journal of Medical Society of Toho University. Vol. 16, Pg. 297, 1969.
rat	LD50	unreported	8600mg/kg (8600mg/kg)		Travaux de la Societe de Pharmacie de Montpellier. Vol. 37(1), Pg. 45, 1977.