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propachlor (Ref: CP 31393)
** propachlore ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for propachlor

Description: A pre-emergence herbicide for control of annual grasses and some broad-leaved weeds

Example pests controlled: Annual ryegrass; Barnyard grass; Pimpernel; Chickweed; Deadnettle; Fleabane; Shepherd's purse; Fathen

Example applications: Soybeans; Grain sorghum; Corn; Peas; Pumkins; Cotton; Flax

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1964

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Netherlands
Date inclusion expires Expired
EU Candidate for substitution (CfS) -
Listed in EU database Yes

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Also used in: Australia

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism -
Chemical formula C11H14ClNO
Canonical SMILES CC(C)N(C1=CC=CC=C1)C(=O)CCl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) MFOUDYKPLGXPGO-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C11H14ClNO/c1-9(2)13(11(14)8-12)10-6-4-3-5-7-10/h3-7,9H,8H2,1-2H3
Structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Herbicide
Substance group Chloroacetamide
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Selective, systemic, effects cell formation and protein synthesis. Inhibition of VLCFA (inhibition of cell division).
CAS RN 1918-16-7
EC number 217-638-2
CIPAC number 176
US EPA chemical code 019101
PubChem CID 4931
Molecular mass (g mol-1) 211.69
PIN (Preferred Identification Name) -
IUPAC name 2-chloro-N-isopropylacetanilide
CAS name 2-chloro-N-(1-methylethyl)-N-phenylacetamide
Other status information Marine Pollutant; Chemical subject to PIC regulations
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) K3
Herbicide Resistance Classification (WSSA) 15
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Light tan solid
Related substances & organisms

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically
  • AgriGuard
  • Certis
  • Greencrop
  • Makhteshim-Agan
  • Nufarm
Example products using this active
  • Alpha Propachlor 50SC
  • Ashlade CP
  • Titan 480
  • Ramrod
UK LERAP status None
Formulation and application details Often supplied as emulsifiable concentrates, granules or suspension concentrate.


ENVIRONMENTAL FATE

for propachlor

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 580 H4 High
Solubility - In organic solvents at 20oC (mg l-1) 353900 C4 - Acetone -
205500 C4 - Xylene -
296100 C4 - Toluene -
655900 C4 - Benzene -
Melting point (oC) 77 A5 -
Boiling point (oC) - - -
Degradation point (oC) 170 F4 -
Flashpoint (oC) 174 L3 - (open cup) -
Octanol-water partition coefficient at pH 7, 20oC P 3.98 X 1001 Calculated -
Log P 1.6 H4 Low
Bulk density (g ml-1)/Specific gravity 1.13 L3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 30.6 H4 Highly volatile
Henry's law constant at 25oC (Pa m3 mol-1) 3.65 X 10-03 L3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 1.47 Calculated Low leachability
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Value 4.13 X 10-03 Calculated -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated Low
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
General biodegradability -
Soil degradation (days) (aerobic) DT50 (typical) 5 K4 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Best available data; Other sources: DT50 6 days (DW4)
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value - - -
Note -
Aqueous photolysis DT50 (days) at pH 7 Value 18 K4 Slow
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 28 K4 Non-persistent
Note -
Water-sediment DT50 (days) 84 K4 Moderately fast
Water phase only DT50 (days) 4.5 K4 Moderately fast

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - H3 Moderately mobile
Koc 80
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -

Other known metabolites:
Metabolite name and reference Aliases Formation medium / Rate Estimated maximum occurrence fraction Metabolising enzymes
propachlor methyl sulfoxide - Soil (Aerobic); Water (Anaerobic) - -
2-hydroxy-N-(1-methylethyl)-N-phenyl acetamide propachlor alcohol Soil (Aerobic); Water (Anaerobic) - -
N-(1-methylethyl)-N-phenylacetamide norchloropropachlor Soil (Aerobic); Water (Anaerobic) - -
propachlor disulfide - Soil (Aerobic); Water (Anaerobic) - -
propachlor thiol - Soil (Aerobic) - -
[(1-methylethyl)phenylamino] oxacetic acid propachlor oxanilic acid Soil (Aerobic) - -
2[(1-methylethyl)phenylamino]-2-oxo-ethane sylfonic acid propachlor sulfonic acid Soil (Aerobic); Water (Anaerobic) - -
propachlor sulfonic acid - Soil - -
(([1-methylethyl)phenylamino] acetyl) sulfinyl) acetic acid propachlor sulfinylacetic acid Soil (Aerobic) - -
N-(1-methylethyl)-2-(methylsulfonyl)-N-phenyl acetamide propachlor methyl sulfone Soil (Aerobic) - -


ECOTOXICOLOGY

for propachlor

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) 37 F4 Whole fish Low potential
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 550 L3 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) 5.4 L2 Rat, 2 year High
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 91 K4 Colinus virginianus High
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.17 L3 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 7.8 L3 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 0.005 F4 Lemna gibba High
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.015 L3 Raphidocelis subcapitata Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) 0.01 Q2 Unknown species Moderate
Honeybees Contact acute 48 hour LD50 (μg bee-1) - - -
Oral acute 48 hour LD50 (μg bee-1) 197 L3 Low
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) 218 L3 Moderate
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect Moderately harmful AA2 Chrysoperla carnea -
Other arthropod (2) LR50 g ha-1 - - -
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for propachlor

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mammals - Acute oral LD50 (mg kg-1) 550 L3 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) > 200000 L3 Rabbit -
Mammals - Inhalation LC50 (mg l-1) 1.2 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) - - -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Limits - - -
Exposure Routes Public -
Occupational -
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

General human health issues USEPA - probable human carcinogen

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes IMDG Transport Code is usually 9
CLP classification 2013 Health: H302, H317, H319
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R22, R43
Xi - Irritant: R36
N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S2, S22, S36, S46, S60
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) III - Caution - Slightly toxic
UN Number Usually 3082
Waste disposal & packaging Click here for a description of UN packaging marks Packaging Group III (minor danger)


TRANSLATIONS

for propachlor

Language Name
English propachlor
French propachlore
German Propachlor
Danish propachlor
Italian propaclor
Spanish propacloro
Greek propachlor
Slovenian propaklor
Polish propachlor
Swedish -
Hungarian propaklor
Dutch propachloor

Record last updated: Wednesday 31 October 2018
Contact: aeru@herts.ac.uk