Myclobutanil

  • alpha-Butyl-alpha-(4-Chlorophenyl)-1h-1,2,4-triazole-1-propanenitrile
  • 2-p-Chlorophenyl-2-(1H-1,2,4-triazol-1-ylmethyl)hexanenitrile
  • 2-(4-Chlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)hexanenitrile
Formula
C15H17ClN4
Structure
Description
Pale yellow solid.
Uses
Systemic fungicide used for the control of ascomycetes, fungi imperfecti, and basidiomycetes on a wide variety of crops.

Registry Numbers and Inventories.
CAS
88671-89-0
EC Index Number
613-134-00-5
RTECS
XZ5257000
RTECS class
Agricultural Chemical and Pesticide; Reproductive Effector
Merck
12,6402
Beilstein/Gmelin
NA
EPA OPP
128857
Swiss Giftliste 1
G-87743
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C15H17ClN4
Formula mass
288.78
Melting point, °C
63 - 68
Boiling point, °C
465
Vapor pressure, mmHg
1E-8 (25 C)
Solubility in water
142 mg/L (25 C)
pKa/pKb
9.88 (pKb)
Partition coefficient, pKow
2.94
Heat of vaporization
72.7 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
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.
Protection
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.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
Stable under normal storage conditions. Aqueous solutions decompose on exposure to light.
Incompatibilities
Strong oxidizing agents.

Fire.
Flash Point,°C
235
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Health.
Poison_Class
4
Exposure effects
The toxicological properties of this material have not been investigated.

First aid
 
   Ingestion
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.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.