Product Name

  • Name

    ISAZOPHOS

  • EINECS 255-863-8
  • CAS No. 42509-80-8
  • Article Data1
  • CAS DataBase
  • Density 1.22 g/cm3 (20℃)
  • Solubility 168 mg l-1 (20 °C)
  • Melting Point <25℃
  • Formula C9H17ClN3O3PS
  • Boiling Point 387.4°C at 760 mmHg
  • Molecular Weight 313.745
  • Flash Point 188.1°C
  • Transport Information
  • Appearance
  • Safety Poison by ingestion, inhalation, and skin contact. Used as a pesticide against pathogenic root nematodes on bananas, citrus, and various annual crops. When heated to decomposition it emits very toxic fumes of Cl−, NOx, POx, and SOx. See also ESTERS.
  • Risk Codes 24/25-26-43-48/20-50/53
  • Molecular Structure Molecular Structure of 42509-80-8 (ISAZOPHOS)
  • Hazard Symbols T+,N
  • Synonyms Brace;Miral;Triumph (pesticide);Phosphorothioic acid,esters,O-[5-chloro-1-(1- methylethyl)-1H-1,2,4-triazol-3-yl] O,O-diethyl ester;CGA 12223;Isazophos;Isazofos;CGA-12223;O-(5-CHLORO-1-(1-METHYLETHYL)-1H-1,2,4-TRIAZOL-3-YL) O,O-DIETHYL PHOSPHOROTHIOATE;AI3-29128;TRIUMPH;CIBA 12223;MIRAL 10 G;A-12223;
  • PSA 100.30000
  • LogP 3.83930

Isazofos Chemical Properties

Product Name: Isazofos (CAS NO.42509-80-8)


Molecular Formula: C9H17ClN3O3PS
Molecular Weight: 313.74g/mol
Mol File: 42509-80-8.mol
Einecs: 255-863-8
Appearance: Yellow liquid
Boiling point: 387.4 °C at 760 mmHg
Storage Temperature: 0-6°C
Flash Point: 188.1 °C
Density: 1.4 g/cm3
Surface Tension: 44.5 dyne/cm
Enthalpy of Vaporization: 63.65 kJ/mol
Vapour Pressure: 3.3E-06 mmHg at 25°C
XLogP3-AA: 3.9
H-Bond Donor: 0
H-Bond Acceptor: 5
Structure Descriptors of Isazofos (CAS NO.42509-80-8):
  IUPAC Name: (5-chloro-1-propan-2-yl-1,2,4-triazol-3-yl)oxy-diethoxy-sulfanylidene-λ5-phosphane
  Canonical SMILES: CCOP(=S)(OCC)OC1=NN(C(=N1)Cl)C(C)C
  InChI: InChI=1S/C9H17ClN3O3PS/c1-5-14-17(18,15-6-2)16-9-11-8(10)13(12-9)7(3)4/h7H,5-6H2,1-4H3 
  InChIKey: XRHGWAGWAHHFLF-UHFFFAOYSA-N
Product Categories: H-MAnalytical Standards; IPesticides&Metabolites; Alpha sort; Alphabetic; Nematicides; Pesticides; Pesticides&Metabolites; Analytical Standards

Isazofos Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
hamster LD50 oral 66mg/kg (66mg/kg)   Ciba-Geigy Toxicology Data/Indexes.
mouse LD50 oral 34mg/kg (34mg/kg)   Ciba-Geigy Toxicology Data/Indexes.
rabbit LD50 oral 175mg/kg (175mg/kg) BEHAVIORAL: ATAXIA

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS		 National Technical Information Service. Vol. OTS0535376,
rabbit LD50 skin 755mg/kg (755mg/kg)   Ciba-Geigy Toxicology Data/Indexes.
rat LC50 inhalation 103mg/m3/4H (103mg/m3)   National Technical Information Service. Vol. OTS0535364,
rat LD50 intraperitoneal 36mg/kg (36mg/kg) SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)		 National Technical Information Service. Vol. OTS0538007,
rat LD50 oral 27mg/kg (27mg/kg) SENSE ORGANS AND SPECIAL SENSES: CHROMODACYRORREA: EYE

SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 National Technical Information Service. Vol. OTS0535938,
rat LD50 skin 118mg/kg (118mg/kg)   Pesticide Manual. Vol. 9, Pg. 502, 1991.

Isazofos Safety Profile

Poison by ingestion, inhalation, and skin contact. Used as a pesticide against pathogenic root nematodes on bananas, citrus, and various annual crops. When heated to decomposition it emits very toxic fumes of Cl−, NOx, POx, and SOx. See also ESTERS.
Safety Information of Isazofos (CAS NO.42509-80-8):
Hazard Codes: T+,N
Risk Statements: 24/25-26-43-48/20-50/53 
20:  Harmful by inhalation 
24:  Toxic in contact with skin 
25:  Toxic if swallowed 
26:  Very Toxic by inhalation 
43:  May cause sensitization by skin contact 
48:  Danger of serious damage to health by prolonged exposure 
50:  Very Toxic to aquatic organisms 
53:  May cause long-term adverse effects in the aquatic environment 
Safety Statements: 28-36/37-38-45-59-61
28:  After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) 
36:  Wear suitable protective clothing  
37:  Wear suitable gloves 
38:  In case of insufficient ventilation, wear suitable respiratory equipment 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) 
59:  Refer to manufacturer/supplier for information on recovery/recycling 
61:  Avoid release to the environment. Refer to special instructions safety data sheet 

Isazofos Specification

 Isazofos ,its CAS NO. is 42509-80-8,the synonyms is O-(5-Chloro-1-isopropyl-1,2,4-triazol-3-yl) O,O-diethyl phosphorothioate ; Phosphorothioic acid, O-(5-chloro-1-(1-methylethyl)-1H-1,2,4-triazol-3-yl) O,O-diethyl ester ; Isazophos ; Miral ;  Ciba 12223 ; EINECS 255-863-8 ;  Brace .

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