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naled (Ref: OMS 75)
** bromchlophos ** BRP ** dibrom ** hibrom ** bromex ** Translations

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

SUMMARY

Naled is mainly used for non-food applications. As an organophosphorus there are toxicity concerns and may cause cholinesterase inhibition in humans. Naled is practically nonpersistent in the environment with very rapid soil degradation rates. It is also not mobile and so should not be a risk to groundwater. It is toxic to birds and aquatic organisms and may pose a risk to honeybees.

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

Description: An insecticide used to control aphids, mites, mosquitoes, flies and many other pests

Example pests controlled: Aphids; Mites; Mosquitoes; Flies

Example applications: Fruit; Vegetables; Nuts; Poultry houses; Mushroom houses; Kennels

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1956

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur France
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, USA

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism A molecule with one chiral feature.
Chemical formula C4H7Br2Cl2O4P
Canonical SMILES COP(=O)(OC)OC(C(Cl)(Cl)Br)Br
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) BUYMVQAILCEWRR-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C4H7Br2Cl2O4P/c1-10-13(9,11-2)12-3(5)4(6,7)8/H3h,1-2H3
2D structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Insecticide, Acaricide
Substance group Organophosphate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Non-systemic with rapid contact and stomach action. Cholinesterase inhibitor.
CAS RN 300-76-5
EC number 206-098-3
CIPAC number 195
US EPA chemical code 034401
PubChem CID 4420
Molecular mass (g mol-1) 380.79
PIN (Preferred Identification Name) -
IUPAC name (RS)-1,2-dibromo-2,2-dichloroethyl dimethyl phosphate
CAS name 1,2-dibromo-2,2-dichloroethyl dimethyl phosphate
Other status information Marine Pollutant; Chemical subject to PIC regulations; PAN listed Highly Hazardous Chemical
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) 1B
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance Aedes nigromaculis
Boophilus microplus
Delia antiqua
Musca domestica
Myzus persicae
Rhizoglyphus robini
plus others
Physical state Colourless to yellow liquid
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
  • Amvac
  • Tekchem
  • Ningbo Yihwei Chemicals Co. Ltd.
Example products using this active
  • Bansect
  • Clean Crop
  • Dibrom
  • Hopkins
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Available in a variety of formulations including emulsifiable concentrates, liquids and LVCs.


ENVIRONMENTAL FATE

for naled

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) 2000 F4 High
Solubility - In organic solvents at 20oC (mg l-1) 820000 P3 - Heptane -
Melting point (oC) 27.0 F3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 1.51 X 1002 Calculated -
Log P 2.18 F3 Low
Bulk density (g ml-1)/Specific gravity 1.97 F3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 260 G4 Highly volatile
Henry's law constant at 25oC (Pa m3 mol-1) 6.60 H4 Moderately volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 0.00 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 4.30 X 10-04 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) 1 G4 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Best available data
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 4.4 F3 Moderately fast
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 0.7 F3 Non-persistent
Note pH sensitive: 4 days @ pH 5, 0.1 days @ pH 9
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

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 - G4 Moderately mobile
Koc 180
Notes and range Best available data
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -

Key metabolites:
Metabolite Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
dichlorvos (Ref: OMS 14) This metabolite may cause environmental pollution, click here for further information Soil   0.165   -


ECOTOXICOLOGY

for naled

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) 598 F3 Estimated Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 83 F4 Rat High
Mammals - Short term dietary NOEL (mg kg-1) - L2 Rat, 2 year -
(ppm diet) 100 -
Birds - Acute LD50 (mg kg-1) > 52 G4 Anas platyrhynchos High
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 0.195 G4 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.00035 F4 Daphnia magna High
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) 0.0077 F3 Americamysis bahia High
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) 1.8 F3 Lemna gibba Moderate
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.00035 W2 Pseudokirchneriella subcapitata High
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) > 0.002 F4 High
Oral acute 48 hour LD50 (μg bee-1) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) - - -
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 - - -
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 naled

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) 83 F4 Rat High
Mammals - Dermal LD50 (mg kg-1 body weight) 800 F3 Rat -
Mammals - Inhalation LC50 (mg l-1) 0.2 F3 Rat, 4 hr -
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 List I; List II - -
Exposure Limits [UK LT TWA 8 hr: 3 mg/m3], [UK ST 15 mins: 6 mg/m3] Occupation Exposure -
Exposure Routes Public -
Occupational May be absorbed from the gastrointestinal tract, by inhalation and through the intact skin
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 Harmful if swallowed or in contact with skin
May cause mild testicular degeneration

: 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 Corrosive
CLP classification 2013 -
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R21/22
Xi - Irritant: R36/38
N - Dangerous for the environment: R50
EC Safety Classification Click here to view information omn the EU safety phrases S2, S36/37, S60, S61
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) I - Danger - Highly toxic
UN Number 3018
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for naled

Language Name
English naled
French naled
German Naled
Danish naled
Italian naled
Spanish naled
Greek naled
Slovenian naled
Polish naled
Swedish -
Hungarian -
Dutch naled

Record last updated: Thursday 24 May 2018
Contact: aeru@herts.ac.uk