• 5-Amino-3-phenyl-1-bis (dimethyl-amino)-phosphoryle-1,2,4-triazole
  • p-(5-Amino-3-phenyl-1H-1,2,4-triazol-1-yl)-N,N,n',n'-tetramethyl-phosphonic diamine
  • bis(Dimethylamino)-3-amino-5-phenyltriazolyl phosphine oxide
White crystals.
A fungicide for the control of powdery mildews.

Registry Numbers and Inventories.
EC Index Number
RTECS class
Agricultural Chemical and Pesticide; Reproductive Effector
Beilstein Reference
Swiss Giftliste 1

Formula mass
Melting point, °C
167.5 - 168
Solubility in water
250 mg/L@ 20 C

Hazards and Protection.
Pesticides of any degree of toxicity should be transported in containers which are clearly labelled, leak-proof and not easily damaged. They should never be transported beside or above any type of food, and all spillages should be immediately reported. Rooms used for storage only should be soundly constructed and fitted with secure locks. Floors should be kept clear and the pesticides clearly identified if repacking is carried out in storage rooms, adequate light should be available; floors should be impervious and sound; washing facilities should be available.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Triamiphos is an organophosphorus pesticide. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Do not touch spilled material; stop leak if you can do so without risk. Use water spray to reduce vapors. Small spills: absorb with sand or other non-combustible absorbent material and place into containers for later disposal. Small dry spills: with clean shovel place material into clean dry containers and cover; move containers from spill area. Large spills: dike far ahead of spill for later disposal.
Stable in neutral solutions and in neutral aqueous dispersions. Hydrolyzes readily in the presence of strong mineral acids; rather stable to alkali.

Fire fighting
Triamiphos is listed as an organophosphorus pesticide. As for other organophosphorus pesticides, stay upwind; keep out of low areas. Move containers from fire area if you can do it without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.This material may burn, but does not ignite readily. Extinguish with dry chemical, carbon dioxide, water spray, fog, or foam.
As for other organophosphorus pesticides, containers may explode in heat of fire. Heat may cause decomposition and evolution of highly toxic fumes of nitrogen oxides and phosphorus oxides.
Combustion products
When heated to decompostion it emits very toxic fumes of pox and nox.

Exposure effects
Fever, low heart rate and abnormally low blood pressure, or rapid heart rate and elevated blood pressure may occur. Headache, dizziness, muscle spasms and profound weakness are common. Alterations of level of consciousness, anxiety, paralysis, seizures and coma may occur. Seizures may be more common in children.
Vomiting, hypersalivation, diarrhea, fecal incontinence and abdominal pain may occur.
Dyspnea, rales, bronchorrhea, bronchospasm, or tachypnea may be noted. Noncardiogenic pulmonary edema may occur in severe cases. Chemical pneumonitis may be seen.
Sweating is a consistent but not universal sign.
Constriction of the pupil, tearing, and blurred vision are common. Prolonged dialation of the pupils may occur in severe poisonings. Opsoclonus has been reported in one case. Salivation commonly occurs.

First aid
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Systemic effects can occur from dermal exposure to organophosphates. Remove contaminated clothing, wash skin, hair and nails vigorously with repeated soap washings. Leather absorbs pesticides; all contaminated leather should be discarded. Rescue personnel and bystanders should avoid direct contact with contaminated skin, clothing, or other objects.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. Patients symptomatic following exposure should be observed in a controlled setting until all signs and symptoms have fully resolved. Suction oral secretions until atropinization. Treatment should include recommendations listed in the oral exposure section when appropriate. Contraindications - succinylcholine and other cholinergic agents are contraindicated. Note: see treatment of eye exposure in the main body of this document for complete information.