Endrin Type: O
CAS No. 72208  
Physical Properties Value Reference
Molecular Weight (g/mol) 380.91292 TR
Solubility @ 20-25 degC (mg/L) 0.25 TR
Vapor pressure @ 20-25 degC (mmHG) 5.84e-007 TR
Henry's Law constant @ 20 degC 4.94683e-005 TR
Sorption coefficient (log L/kg) Koc 3.97 TR
Octanol-water partition coefficient (log L/kg) 5.4478 TR
Diffusion coefficient in air (cm^2/s) 0.0125 TR
Diffusion coefficient in water (cm^2/s) 4.74e-006 TR
     
Miscellaneous Parameters Value Reference
Relative bioavailability factor (-) 1 T
Analytical Detection Limits:
Water (mg/L) - -
Soil (mg/kg) - -
First-order decay half lives (days):
Saturated zone -  
Unsaturated zone - -
Soil-to-plant biotransfer factor (0):
Above ground veg. -  
Below ground veg. - -
     
Toxicity Data Value Reference
EPA weight of evidence D  
Carcinogen FALSE  
Oral slope factor (1/[mg/kg/day]) - -
Inhalation unit risk factor (1/[ug/m^3]) - -
Oral reference dose (mg/kg/day) 0.0003 TR
Inhalation reference conc. (mg/m^3) 0.0001 TR
     
Dermal Exposure Value Reference
Dermal adsorption fraction (-) 0.1 TR
Gastrointestinal adsorption fraction (-) 0.5 TR
Dermal permeability coefficient (cm/hr) - -
Lag time for dermal exposure (hr) - -
Critical dermal exposure time (hr) -  
Relative contribution of perm. coeff. (-) -  
     
Regulatory Standards Value Reference
Primary MCL 0.002 MC
Secondary MCL - -
Drinking Water MCLs (mg/L):
Occupational Air PEL/TWA (mg/m^3) 0.1 OS
Surface water quality criteria (mg/L)
Aquatic life protection: Fresh water biota 2.3e-006 T1
Aquatic life protection: Marine biota 2.3e-006 T1
Human health: Drinking / freshwater fish 0.00127 T3
Human health: Fresh water fishing only 0.00134 T3
Human health: Salt water fishing only 0.000893 T3
     
LAST UPDATE: Sunday, 29 November -0001