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Aldicarb (Ref: ENT 27093)
Last updated: 18/08/2021
(Also known as: carbamic acid; UC 21149; carbamyl)

SUMMARY
Aldicarb is an insecticide used to control sucking and chewing pests. It is highly soluble and volatile. It is not persistent in soil but may be in in aqueous sustems. It is highly toxic to humans but has a low potential to bioaccumulate. It is a known endocrine disrupter, a neurotoxin and an inhibitor of acetyl cholinesterase. Aldicarb is highly toxic to birds and honeybees, and moderately toxic to most aquatic organisms and earthworms.
Data alerts

The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.

Environmental fate Ecotoxicity Human health
Environmental fate
High alert:
Drainflow: Mobile
Ecotoxicity
High alert:
Birds acute ecotoxicity: High; Bees acute contact ecotoxicity: High; Bees acute oral ecotoxicity: High
Human health
High alert:
Mammals acute toxicity: High; Endocrine distrupter; Acetyl cholinesterase inhibitor; Neurotoxicant
GENERAL INFORMATION
Description
A soil applied, insecticide and nematicide used to control chewing, sucking and soil dwelling insects
Example pests controlled
Mites; Nematodes; Aphids
Example applications
Cucumbers; Water melons; Cotton; Peanut; Soybean; Potatoes
Efficacy & activity
-
Availability status
Current
Introduction & key dates
1970, USA
UK regulatory status
UK COPR regulatory status
Not approved
Date COPR inclusion expires
Expired
UK LERAP status
None
EC Regulation 1107/2009 (repealing 91/414)
EC Regulation 1107/2009 status
Not approved
Dossier rapporteur/co-rapporteur
UK
Date EC 1107/2009 inclusion expires
Expired
EU Candidate for substitution (CfS)
Not applicable
Listed in EU database
Yes
Approved for use (✓) under EC 1107/2009 in the following EU Member States
ATAustria
BEBelgium
BGBulgaria
CYCyprus
CZCzech Republic
DEGermany
DKDenmark
EEEstonia
ELGreece
                 
ESSpain
FIFinland
FRFrance
HRCroatia
HUHungary
IEIreland
ITItaly
LTLithuania
LULuxembourg
                 
LVLatvia
MTMalta
NLNetherlands
PLPoland
PTPortugal
RORomania
SESweden
SISlovenia
SKSlovakia
                 
Additional information
Also used in
Australia, USA
Chemical structure
Isomerism
Isomeric - a structural isomer of butocarboxime
Chemical formula
C₇H₁₄N₂O₂S
Canonical SMILES
CC(C)(C=NOC(=O)NC)SC
Isomeric SMILES
CC(C)(/C=N/OC(=O)NC)SC
International Chemical Identifier key (InChIKey)
QGLZXHRNAYXIBU-UHFFFAOYSA-N
International Chemical Identifier (InChI)
InChI=1S/C7H14N2O2S/c1-7(2,12-4)5-9-11-6(10)8-3/h5H,1-4H3,(H,8,10)/b9-5+
2D structure diagram/image available?
Yes
Cambridge Crystallographic Data Centre diagrams
Common Name Relationship Link
aldicarb -
General status
Pesticide type
Insecticide, Acaricide, Nematicide
Substance group
Carbamate
Minimum active substance purity
-
Known relevant impurities
-
Substance origin
Synthetic
Mode of action
Systemic with contact and stomach action absorbed through roots. Acetylcholinesterase (AChE) inhibitor.
CAS RN
116-06-3
EC number
204-123-2
CIPAC number
215
US EPA chemical code
098301
PubChem CID
9570071
Molecular mass
190.26
PIN (Preferred Identification Name)
(5E)-7,7-dimethyl-4-oxa-8-thia-2,5-diazanon-5-en-3-one
IUPAC name
(EZ)-2-methyl-2-(methylthio)propionaldehyde O-methylcarbamoyloxime
CAS name
2-methyl-2-(methylthio)propanal O-[(methylamino)carbonyl]oxime
Other status information
PAN Bad Actor Chemical; Potential groundwater contaminant; Marine Pollutant; Subject to the provisions of the UK Poisons Act 1972
Relevant Environmental Water Quality Standards
-
Herbicide Resistance Classification (HRAC)
Not applicable
Herbicide Resistance Classification (WSSA)
Not applicable
Insecticide Resistance Classification (IRAC)
1A
Fungicide Resistance Classification (FRAC)
Not applicable
Examples of recorded resistance
Leptinotarsa decemlineata, Liriomyza munda, Tetranychus urticae
Physical state
White crystals
Formulations
Property
Value
Example manufacturers & suppliers of products using this active now or historically
  • Bayer CropScience
Example products using this active
  • Temik
  • Aglogic 15g
  • Meymik
Formulation and application details
Products are usually supplied as granular formulations
ENVIRONMENTAL FATE
Property
Value
Source; quality score; and other information
Interpretation
Solubility - In water at 20 °C (mg l⁻¹)
4930
B5 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
5 = Verified data used for regulatory purposes
High
Solubility - In organic solvents at 20 °C (mg l⁻¹)
180000
B4 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
4 = Verified data
Benzene
-
110000
B3 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
3 = Unverified data of known source
Toluene
-
470000
B4 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
4 = Verified data
Dichloromethane
-
380000
B4 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
4 = Verified data
Acetone
-
Melting point (°C)
99
L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source
-
Boiling point (°C)
Decomposes before boiling
V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM )
3 = Unverified data of known source
-
Degradation point (°C)
- - -
Flashpoint (°C)
- - -
Octanol-water partition coefficient at pH 7, 20 °C
P
1.41 X 1001 Calculated -
Log P
1.15
B5 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
5 = Verified data used for regulatory purposes
Low
Bulk density (g ml⁻¹)
1.2
L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source
-
Dissociation constant pKa) at 25 °C
Not applicable
Q3 Q = Miscellaneous internet resources
3 = Unverified data of known source
-
No dissociation
Vapour pressure at 20 °C (mPa)
3.87
B5 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
5 = Verified data used for regulatory purposes
Low volatility
Henry's law constant at 25 °C (Pa m³ mol⁻¹)
1.25 X 10-05
H4 H = The US ARS pesticide properties database (click here )
4 = Verified data
Non-volatile
Maximum UV-vis absorption L mol⁻¹ cm⁻¹
- - -
Surface tension (mN m⁻¹)
- - -
Degradation
Property
Value
Source; quality score; and other information
Interpretation
General biodegradability
-
Soil degradation (days) (aerobic)
DT₅₀ (typical)
10
Q3 Q = Miscellaneous internet resources
3 = Unverified data of known source
Non-persistent
DT₅₀ (lab at 20 °C)
2.4
B5 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
5 = Verified data used for regulatory purposes
Non-persistent
DT₅₀ (field)
2
R3 R = Peer reviewed scientific publications
3 = Unverified data of known source
Non-persistent
DT₉₀ (lab at 20 °C)
- - -
DT₉₀ (field)
- - -
DT₅₀ modelling endpoint
- - -
Note
Literature values DT₅₀ range 1-60 days
Dissipation rate RL₅₀ on plant matrix
Value
- - -
Note
-
Dissipation rate RL₅₀ on and in plant matrix
Value
5.5
R4 R = Peer reviewed scientific publications
4 = Verified data
-
Note
Published literature RL₅₀ range 1.0-12.6 days, 7 field & undercover grown crops, various matrices, n=14
Aqueous photolysis DT₅₀ (days) at pH 7
Value
8
K4 K = Research datasets, e.g. Pandora, Demetra
4 = Verified data
Moderately fast
Note
-
Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7
Value
189
K4 K = Research datasets, e.g. Pandora, Demetra
4 = Verified data
Persistent
Note
Hydrolysis is not greatly pH sensitive except in concentrated alkaline media
Water-sediment DT₅₀ (days)
6
K3 K = Research datasets, e.g. Pandora, Demetra
3 = Unverified data of known source
Fast
Water phase only DT₅₀ (days)
- - -
Soil adsorption and mobility
Property
Value
Source; quality score; and other information
Interpretation
Linear
Kd
-
R3 R = Peer reviewed scientific publications
3 = Unverified data of known source
Mobile
Koc
36
Notes and range
General literature Koc 7.08-46.77 mL g⁻¹
Freundlich
Kf
1.29
G3 G = Extension Toxicology network database EXTOXNET (click here )
3 = Unverified data of known source
Mobile
Kfoc
30
1/n
0.9
Notes and range
Mean of 4 soils, 5 values. Sandy loam Kf=0.19; Loamy sand Kf=0.22; Loam Kf=2.47; Silt loam Kf=1.13
pH sensitivity
-
Fate indices
Property
Value
Source; quality score; and other information
Interpretation
GUS leaching potential index
0.76 Calculated Low leachability
SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate
Value
1.82 X 10-03 Calculated -
Note
-
Potential for particle bound transport index
Low Calculated -
Potential for loss via drain flow
Mobile Calculated -
Key metabolites
Metabolite
Formation medium
Estimated maximum occurrence fraction
1107/2009 relevancy
aldicarb sulfoxide
Soil 0.9 Major fraction, Relevancy unknown
aldoxycarb
Soil 0.2 Major fraction, Relevancy unknown
Other known metabolites
Metabolite name and reference
Aliases
Formation medium / Rate
Estimated maximum occurrence fraction
Metabolising enzymes
aldicarb sulfone
Note: DT50 soil = 48 days
- a = Soil; b = Plant; c = Rat (Urinary) a=0.200 -
aldicarb nitrile - Soil; Plant; Rat (Urinary) - -
aldicarb acid - Soil - -
ECOTOXICOLOGY
Property
Value
Source; quality score; and other information
Interpretation
Bio-concentration factor
BCF (l kg⁻¹)
42
P4 P = Other governments and regulators
4 = Verified data
Low potential
CT₅₀ (days)
Not available -
Mammals - Acute oral LD₅₀ (mg kg⁻¹)
0.93
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
Rat
High
Mammals - Short term dietary NOEL
(mg kg⁻¹)
- - -
(ppm diet)
- -
Mammals - Chronic 21d NOAEL (mg kg⁻¹ bw d⁻¹)
- - -
Birds - Acute LD₅₀ (mg kg⁻¹)
3.4
F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
3 = Unverified data of known source
Anas platyrhynchos
High
Birds - Short term dietary (LC₅₀/LD₅₀)
- - -
Birds - Chronic 21d NOEL (mg kg⁻¹ bw d⁻¹)
- - -
Fish - Acute 96 hour LC₅₀ (mg l⁻¹)
0.56
L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source
Oncorhynchus mykiss
Moderate
Fish - Chronic 21 day NOEC (mg l⁻¹)
1.37
Q2 Q = Miscellaneous internet resources
2 = Unverified data of unknown source
Unknown species
Moderate
Aquatic invertebrates - Acute 48 hour EC₅₀ (mg l⁻¹)
0.42
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
Daphnia magna
Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l⁻¹)
0.035
L2 L = Pesticide manuals and hard copy reference books / other sources
2 = Unverified data of unknown source
Daphnia magna
Moderate
Aquatic crustaceans - Acute 96 hour LC₅₀ (mg l⁻¹)
- - -
Sediment dwelling organisms - Acute 96 hour LC₅₀ (mg l⁻¹)
0.004
F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
3 = Unverified data of known source
Chironomus riparius 1 day
High
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)
50
F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
3 = Unverified data of known source
Skeletonema costatum
Low
Algae - Chronic 96 hour NOEC, growth (mg l⁻¹)
- - -
Honeybees (Apis spp.)
Contact acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
> 0.28
R4 R = Peer reviewed scientific publications
4 = Verified data
High
Oral acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
> 0.16
F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
3 = Unverified data of known source
High
Unknown mode acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
- - -
Bumblebees (Bombus spp.)
Contact acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
- - -
-
Oral acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
- - -
-
Mason bees (Osmia spp.)
Contact acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
- - -
Oral acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)
- - -
Other pollinators (1)
Acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg insect⁻¹)
0.211
R4 R = Peer reviewed scientific publications
4 = Verified data
Megachile rotundata
High
Mode of exposure
Oral
Other pollinators (2)
Acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg insect⁻¹)
0.431
R4 R = Peer reviewed scientific publications
4 = Verified data
Megachile rotundata
High
Mode of exposure
Contact
Earthworms - Acute 14 day LC₅₀ (mg kg⁻¹)
65
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
Eisenia foetida
Moderate
Earthworms - Chronic NOEC, reproduction (mg kg⁻¹)
- - -
Other soil macro-organisms
Acute LC₅₀ (mg kg⁻¹)
- - -
Chronic NOEC (mg kg⁻¹)
- - -
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
General
Property
Value
Source; quality score; and other information
Interpretation
Threshold of Toxicological Concern (Cramer Class)
High (class III) - -
Mammals - Acute oral LD₅₀ (mg kg⁻¹)
0.93
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
Rat
High
Mammals - Dermal LD₅₀ (mg kg⁻¹ body weight)
20
L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source
Rabbit
-
Mammals - Inhalation LC₅₀ (mg l⁻¹)
0.004
L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source
Rat
-
Other Mammal toxicity endpoints
- - -
ADI - Acceptable Daily Intake (mg kg⁻¹ bw day⁻¹)
0.003
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
JMPR 1995
-
ARfD - Acute Reference Dose (mg kg⁻¹ bw day⁻¹)
0.003
F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment )
4 = Verified data
JMPR 1995
-
AAOEL - Acute Acceptable Operator Exposure Level (mg kg⁻¹ bw day⁻¹)
- - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg⁻¹ bw day⁻¹)
- - -
Dermal penetration studies (%)
- - -
Dangerous Substances Directive 76/464
- - -
Exposure Routes
Public
Consumer exposure to aldicarb and its toxic metabolites (the sulfoxide and sulfone) occurs mainly through food residues
Occupational
-
MRLs
European
EU MRL pesticide database 
Great Britain
GB MRL Register 
Notes
-
Drinking Water Standards
Non-statutory WHO drinking water guideline 0.01 mg l⁻¹
B5 B = UK CRD and ACP evaluation documents / and other Defra (UK) documents (click here )
5 = Verified data used for regulatory purposes
UK EA QS database 2018
-
Drinking Water MAC (μg l⁻¹)
- - -
Health issues
Specific human health issues
Carcinogen
Genotoxic
Endocrine disruptor
?Possibly, status not identified
A3 A = Chromosome aberration (EFSA database)
3 = Negative
;
B0 B = DNA damage/repair (EFSA database)
0 = No data
;
C0 C = Gene mutation (EFSA database)
0 = No data
;
D0 D = Genome mutation (EFSA database)
0 = No data
;
E3 E = Unspecified genotoxicity type (miscellaneous data source)
3 = Negative
Yes, known to cause a problem
Reproduction / development effects Acetyl cholinesterase inhibitor Neurotoxicant
?Possibly, status not identified
Yes, known to cause a problem
Yes, known to cause a problem
Respiratory tract irritant Skin irritant Skin sensitiser
XNo, known not to cause a problem
XNo, known not to cause a problem
No data found
Eye irritant Phototoxicant  
XNo, known not to cause a problem
No data found  
General human health issues
Highly toxic
IARC Group 3 carcinogen, USEPA - possible human carcinogen at high doses
Endocrine issues - Inhibition of 17 beta-estradiol and progesterone activity
Handling issues
Property
Value and interpretation
General
Not expected to autoignite; Not highly flammable
CLP classification 2013
Health: H330, H311, H300
Environment: H400, H410
EC Risk Classification
T+ - Very toxic: R26/28
T - Toxic: R24
N - Dangerous for the environment: R50, R53
EC Safety Classification
S1/2, S22, S36/37, S45, S61,S60
WHO Classification
Ia (Extremely hazardous)
UN Number
2757
Waste disposal & packaging
-
TRANSLATIONS
Language
Name
English
aldicarb
French
aldicarbe
German
Aldicarb
Danish
aldicarb
Italian
aldicarb
Spanish
aldicarb
Greek
-
Polish
aldikarb
Swedish
-
Hungarian
aldikarb
Dutch
aldicarb

Record last updated: 18/08/2021
Contact: aeru@herts.ac.uk
Please cite as: Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242