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chloramben (Ref: ACP M-629)
** amben ** chlorambene ** Translations

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

SUMMARY

Chloramben is an obsolete pre-emergence herbicide that is no longer approved in the EU. It is highly soluble in water, volatile, mobile and has a tendency to leach to groundwater. It is not normally persistent in soil or water systems. It has a low mammalian toxicity but a high potential for bioaccumulation. It is a recognised irritant and there are concerns that it may be a developmental/reproduction toxicant. Chloramben has a low toxicity to birds and aquatic invertebrates but is moderately toxic to fish and honeybees.

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

Description: An obsolete pre-emergence herbicide once used to control annual grass and broad-leaved weed seedlings

Example pests controlled: barnyardgrass; Carpteweed; Chickweed; Crabgrass; Foxtail; Johnsongrass; Lambsquarter; Nightshade; Pigweed; Ragweed; Sinkgrass; Velvetleaf

Example applications: Soybeans; Peanuts; Vegetables including dry beans, lima beans, asparagus, pumpkins, squash; Corn; Tomatoes; Peppers, Sweet potatoes

Efficacy & activity: -

Availability status: Obsolete

Introduction & key dates: circa 1958

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

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism None
Chemical formula C7H5Cl2NO2
Canonical SMILES C1=C(C=C(C(=C1N)Cl)C(=O)O)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) BORCLYSCBJR-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C7H5Cl2NO2/c8-3-1-4(7(11)12)6(9)5(10)2-3/h1-2H,10H2,(H,11,12)
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 Herbicide
Substance group Benzoic acid
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Synthetic auxin, Selective, systemic, inhibits seedling root development
CAS RN 133-90-4
EC number 205-123-5
CIPAC number 141
US EPA chemical code 029901
PubChem CID 8630
Molecular mass (g mol-1) 206.03
PIN (Preferred Identification Name) 3-amino-2,5-dichlorobenzoic acid
IUPAC name 3-amino-2,5-dichlorobenzoic acid
CAS name 3-amino-2,5-dichlorobenzoic acid
Other status information -
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) O
Herbicide Resistance Classification (WSSA) 4
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Colourless crystals
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
  • Amchem Products
  • Bayer AG
  • Union Carbide
Example products using this active
  • Ornamental Weeder
  • Vegiben
  • Amiben
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Supplied in a varaiety of formulations including granules, soluble liquids and powders.


ENVIRONMENTAL FATE

for chloramben

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) 700 G4 High
Solubility - In organic solvents at 20oC (mg l-1) 172000 CA3 - Ethanol -
233000 CA3 - Acetone -
200 CA3 - Benzene -
900 CA3 - Chloroform -
Melting point (oC) 200 Q3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 7.94 X 1001 Calculated -
Log P 1.9 V3 Low
Bulk density (g ml-1)/Specific gravity - - -
Dissociation constant (pKa) at 25oC 3.4 DW4 -
Note: Weak acid
Vapour pressure at 20oC (mPa) 930 G4 Highly volatile
Henry's law constant at 25oC (Pa m3 mol-1) 3.92 X 10-06 V3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 3.07 Calculated High 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 1.64 X 10-01 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) 14 M4 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Best available other data: DT50 given as approximately 6 to 8 weeks (CA3)
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 0.25 R3 Fast
Note Rapid circa 6 hours
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value - - -
Note -
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 - H3 Mobile
Koc 21
Notes and range Other sources: Koc range 21-190 mL/g (CA3)
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
2,5-dichloroaniline Soil   -   -


ECOTOXICOLOGY

for chloramben

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) Low risk Q3 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 5000 L3 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - L2 Rat, 2 year -
(ppm diet) 10000 -
Birds - Acute LD50 (mg kg-1) 4640 G4 Anas platyrhynchos Low
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 10 F4 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 1000 F3 Daphnia magna Low
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) - - -
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) - - -
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) - - -
Oral acute 48 hour LD50 (μg bee-1) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) 14.5 F3 Moderate
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 chloramben

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) > 5000 L3 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) - - -
Mammals - Inhalation LC50 (mg l-1) - - -
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 Slightly toxic
May cause dermatitis

: 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 No information available
CLP classification 2013 -
EC Risk Classification Click here to view information omn the EU risk phrases Not classified: Obsolete
EC Safety Classification Click here to view information omn the EU safety phrases Not classified: Obsolete
WHO Classification O - Obsolete substance
US EPA Classification (formulation) No consensus across products or no products available - -
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for chloramben

Language Name
English chloramben
French chlorambene
German Chloramben
Danish chloramben
Italian cloramben
Spanish cloramben
Greek -
Slovenian kloramben
Polish chloramben
Swedish -
Hungarian -
Dutch -

Record last updated: Tuesday 22 May 2018
Contact: aeru@herts.ac.uk