Select Option
Home
A to Z
Search
Terms & Conditions
Support Information
Purchasing & Other Services
Video User Guides
GET ADDITIONAL DATA HERE!

propanil (Ref: FW 734)
** DCPA ** 3,4-DCPA ** propanamide ** Translations

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

SUMMARY

Propanil is a post-emergence herbicide currently being assessed for safety and efficiacy by the EU. It is moderately soluble in water and has a low volatility. It is not expected to leach to groundwater and is not usually persistent in soil or water systems. It is moderately toxic to mammals and no evidence of serious human health impact have been identified. It is, however, moderately toxic to most fauna and flora.

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

Description: A post-emergence herbicide used for broad-leaved and annual grass weed control in rice and other crops

Example pests controlled: Barnyard grass; Morning glory; Crabgrass; Annual sedges; Late watergrass; Junglerice; Prickly grass

Example applications: Rice; Potatoes; Wheat

Efficacy & activity: Has been used extensively in agriculture for many years. Efficiacy tested via field trials.

Availability status: Current

Introduction & key dates: 1960, first reported

EC Regulation 1107/2009 (repealing 91/414):
Status Pending
Dossier rapporteur/co-rapporteur Italy
Date inclusion expires Expired - re-review
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, USA

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism -
Chemical formula C9H9Cl2NO
Canonical SMILES CCC(=O)NC1=CC(=C(C=C1)Cl)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) LFULEKSKNZEWOE-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C9H9Cl2NO/c1-2-9(13)12-6-3-4-7(10)8(11)5-6/h3-5H,2H2,1H3,(H,12,13)
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 Anilide
Minimum active substance purity >984 g/Kg
Known relevant impurities EU dossier: 2,3-DCA <0.5g/kg; 3,4-DCA <2.7g/kg; TCBA <2mg/kg; TCAOB <0.9 mg/kg
Substance origin Synthetic
Mode of action Selective with contact action, inhibition of photosynthesis
CAS RN 709-98-8
EC number 211-914-6
CIPAC number 205
US EPA chemical code 028201
PubChem CID 4933
Molecular mass (g mol-1) 218.08
PIN (Preferred Identification Name) -
IUPAC name 3',4'-dichloropropionanilide
CAS name N-(3,4-dichlorophenyl)propanamide
Other status information Chemical subject to PIC regulations
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) C2
Herbicide Resistance Classification (WSSA) 7
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance Echinochloa colona
Physical state Brown crystalline 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
  • Rohm & Haas
  • Monsanto
  • Bayer
  • Vertac
Example products using this active
  • Arrosol
  • Stampede
  • Strel
  • Propanilo
  • Surcopur
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Often supplied as emulsifiable concentrates or ULV.


ENVIRONMENTAL FATE

for propanil

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) 95.0 A5 Moderate
Solubility - In organic solvents at 20oC (mg l-1) 664000 A5 - Acetone -
650000 A5 - Methanol -
34510 A5 - Xylene -
598000 A5 - Ethyl acetate -
Melting point (oC) 91 A5 -
Boiling point (oC) 351 A5 -
Degradation point (oC) Higher than boiling point A5 -
Flashpoint (oC) Not expected to self ignite; Not highly flammable A5 -
Octanol-water partition coefficient at pH 7, 20oC P 1.95 X 1002 Calculated -
Log P 2.29 A5 Low
Bulk density (g ml-1)/Specific gravity 1.412 A5 -
Dissociation constant (pKa) at 25oC 19.1 A5 -
Note: Does not dissociate
Vapour pressure at 20oC (mPa) 0.0193 A5 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 4.4 X 10-04 A5 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index -0.51 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 5.61 X 10-05 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 Acid: 251nm=18471, 290nm=910; [Neutral: 251nm=20037, 290nm=1374; [Basic: 251nm=18659, 290nm=1033 A5 -
Surface tension (mN m-1) 70.4 A5 -

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) 0.4 Click here to see a warning relating to modelling and this active substance A5 Non-persistent
DT50 (lab at 20oC) 0.4 A5 Non-persistent
DT50 (field) - - -
DT90 (lab at 20oC) 1.44 A5 -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note EU 2017 Dossier Lab studies with flooded soil (dark paddy conditions) DT50 range 0.25-1.76 days; EU 2011 dossier DT50 lab studies range 0.2-0.8 days; DT90 range 0.6-2.8 days
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value 37.8 R3 -
Note Kentucky bluegrass thatch, n=1
Aqueous photolysis DT50 (days) at pH 7 Value 23,6 A5 Stable
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable A5 -
Note Stable at pH 4, 7 & 9
Water-sediment DT50 (days) 1.25 A5 Fast
Water phase only DT50 (days) 1.2 A5 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 - A5 Moderately mobile
Koc 149
Notes and range DW3
Freundlich Kf 6.95 A5 Slightly mobile
Kfoc 535
1/n 0.92
Notes and range EU 2017 dossier Kf range 2.32-11.7 mL/g, Kfoc range 239-800 mL/g, 1/n range 0.82-1.18, Soils=4;
pH sensitivity None

Key metabolites:
Metabolite Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
3,4-dichloroaniline This metabolite may cause environmental pollution, click here for further information Soil   0.833   Major fraction, Relevant

Other known metabolites:
Metabolite name and reference Aliases Formation medium / Rate Estimated maximum occurrence fraction Metabolising enzymes
3,4-dichloronitrobenzene DCNB Soil (Aerobic); Water - -
(Z)-1-(3,4-dichlorophenyl)-2-hydroxydiazene DCAB; N-hydroxy-3,4-Dichloroazobenzene Soil (Aerobic) - -
3,3,4,4-tetrachloroazobenzene TCAB Soil (Aerobic) - -
3,3,4,4-tetrachloroazoxybenzene TCAOB Impurity - -
n-hydroxy-3,4-dichloroaniline - Animal - -
3,4-dichloroacetanilide - Plant - -
3,4-dichloroglucosylamine N-3,4-dichlorophenyl-glucosylamine; N-(3,4-dichlorophenyl)--D-glucopyranosylamine Plant - -


ECOTOXICOLOGY

for propanil

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) 111 J4 Pimephales promelas Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 960 A5 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) - L2 Rat, 2 year -
(ppm diet) 400 -
Birds - Acute LD50 (mg kg-1) 196 A5 Colinus virginianus Moderate
Birds - Short term dietary (LC50/LD50) 2792 mg kg feed-1 A5 Colinus virginianus -
Fish - Acute 96 hour LC50 (mg l-1) 5.4 A5 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 2.39 A5 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) 0.086 A5 Daphnia magna Moderate
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) 0.35 F3 Americamysis bahia Moderate
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) 1.9 A5 Chironomus riparius Moderate
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) 16.0 A5 Chironomus riparius Moderate
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 5.8 A5 Lemna gibba Moderate
Non-target plants 294.2 A5 Brassica oleracea
Vegetative vigour, ER50
as g/ha
-
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.11 A5 Selenastrum capricornutum Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) > 100 A5 Low
Oral acute 48 hour LD50 (μg bee-1) > 94.3 A5 Moderate
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) 734 A5 Eisenia foetida 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 87.0 A5 Typhlodromus pyri -
% Effect - - -
Other arthropod (2) LR50 g ha-1 13700 >
A5 Aphidius rhopalosiphi
-
% Effect - - -
Soil micro-organisms Nitrogen mineralisation: No significant adverse effect
Carbon mineralisation: No significant adverse effect
A5
Dose: 91.2 mg kg-1 soil
-
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for propanil

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) 960 A5 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 A5 Rat -
Mammals - Inhalation LC50 (mg l-1) 1.25 L3 Rat, 4 hr -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.02 A5 Dog, SF=300 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) 0.07 A5 Dog, SF=100 -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) 0.02 A5 Dog, SF=300 -
Dermal penetration studies (%) 2-12.4 A5 concentration dependent -
Dangerous Substances Directive 76/464 List II - -
Exposure Limits - - -
Exposure Routes Public Risk to bystanders are minimal when used as proposed
Occupational Potential risks - PPE/PPC required
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 Possible liver, kidney, spleen and testes toxicant
USEPA - some evidence to suggest possible human carcinogen
Endocrine issues - Increase of cellular response to estrogen

: 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 Not explosive or oxidising
CLP classification 2013 Health: H302
Environment: H400
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R22
N - Dangerous for the environment: R50
EC Safety Classification Click here to view information omn the EU safety phrases S2, S22, S61
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) III - Caution - Slightly toxic
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for propanil

Language Name
English propanil
French propanil
German Propanil
Danish propanil
Italian propanil
Spanish propanil
Greek propanil
Slovenian propanil
Polish propanil
Swedish -
Hungarian -
Dutch propanil

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