Chlorpyrifos

Common name: Chlorpyrifos

CAS No.:  2921–88–2

Chemical name: O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate

Molecular Formula:    C₉H₁₁Cl₃NO₃PS

Chemical structure:

Mode of action: Non-systemic insecticide with contact, stomach, and respiratory action.

Specification for Chlorpyrifos Tech:

Technical specifications	Tolerance
Appearance	White to off-white powder
Active Ingredient Content, %	98 min
Acidity	0.1% max calculated as H2SO4
Sulfotep, %	0.3 max
Acetone insolubles	Retained on a 45 µm test sieve 0.5%max
Water, %	0.2 max

Specification for Chlorpyrifos EC:

Technical specifications	Tolerance
	40%	45%
Active Ingredient Content, %	40 ± 2.0	40 ± 2.2
Water, %	0.8
Sulfotep, %	0.2
pH	4.5-6.5
Storage stability	Qualified