aldicarb (Ref: ENT 27093) ** carbamic acid ** UC 21149 ** carbamyl ** Translations

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SUMMARY

Aldicarb is an insecticide that is not approved for use in the EU. 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.

GENERAL INFORMATION
for aldicarb

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

EC Regulation 1107/2009 (repealing 91/414):

Status	Not approved
Dossier rapporteur/co-rapporteur	UK
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:

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:

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 (g mol-1)	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 Dirty Dozen; Potential groundwater contaminant; Marine Pollutant
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
Related substances & organisms	-

Formulations:

Property	Value
Example manufacturers & suppliers of products using this active now or historically	Bayer CropScience
Example products using this active	Temik
UK LERAP status	None
Formulation and application details	Products are usually supplied as granular formulations.

ENVIRONMENTAL FATE
for aldicarb

Property		Value	Source/Quality Score/Other Information	Interpretation
Solubility - In water at 20oC (mg l-1)		4930	B5	High
Solubility - In organic solvents at 20oC (mg l-1)		180000	B4 - Benzene	-
		110000	B3 - Toluene	-
		470000	B4 - Dichloromethane	-
		380000	B4 - Acetone	-
Melting point (oC)		99	L3	-
Boiling point (oC)		Decomposes before boiling	V3	-
Degradation point (oC)		-	-	-
Flashpoint (oC)		Not expected to self ignite; Not highly flammable	V3	-
Octanol-water partition coefficient at pH 7, 20oC	P	1.41 X 1001	Calculated	-
	Log P	1.15	B5	Low
Bulk density (g ml-1)/Specific gravity		1.2	L3	-
Dissociation constant (pKa) at 25oC		Not applicable	Q3	-
		Note: No dissociation
Vapour pressure at 20oC (mPa)		3.87	B5	Low volatility
Henry's law constant at 25oC (Pa m3 mol-1)		1.25 X 10-05	H4	Non-volatile
GUS leaching potential index		0.96	Calculated	Low leachability
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate	Value	2.16 X 10-03	Calculated	-
	Note	-
Potential for particle bound transport index		-	Calculated	Low
Maximum UV-vis absorption L mol-1 cm-1		-	-	-
Surface tension (mN m-1)		-	-	-

Degradation:

Property		Value	Source/Quality Score/Other Information	Interpretation
General biodegradability		-
Soil degradation (days) (aerobic)	DT50 (typical)	10	Q3	Non-persistent
	DT50 (lab at 20oC)	2.4	B5	Non-persistent
	DT50 (field)	2	R3	Non-persistent
	DT90 (lab at 20oC)	-	-	-
	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	-
	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	Moderately fast
	Note	-
Aqueous hydrolysis DT50 (days) at 20oC and pH 7	Value	189	K4	Persistent
	Note	Hydrolysis is not greatly pH sensitive except in concentrated alkaline media
Water-sediment DT50 (days)		6	K3	Fast
Water phase only DT50 (days)		-	-	-

Soil adsorption and mobility:

Property		Value	Source/Quality Score/Other Information	Interpretation
Linear	Kd	-	R3	Mobile
	Koc	36
	Notes and range	General literature Koc 7.08-46.77 mL/g
Freundlich	Kf	1.29	G3	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		-

Key metabolites:

Metabolite		Formation medium	Estimated maximum occurrence fraction	1107/2009 relevancy
2-methyl-2-(methylsulfinyl)propanal O-((methylamino)carbonyl)oxime		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
for aldicarb

Property		Value	Source/Quality Score/Other Information	Interpretation
Bio-concentration factor	BCF (l kg-1)	42	P4	Low potential
	CT50 (days)	Not available		-
Mammals - Acute oral LD50 (mg kg-1)		0.93	F4 Rat	High
Mammals - Short term dietary NOEL	(mg kg-1)	-	-	-
	(ppm diet)	-		-
Birds - Acute LD50 (mg kg-1)		3.4	F3 Anas platyrhynchos	High
Birds - Short term dietary (LC50/LD50)		-	-	-
Fish - Acute 96 hour LC50 (mg l-1)		0.56	L3 Oncorhynchus mykiss	Moderate
Fish - Chronic 21 day NOEC (mg l-1)		1.37	Q2 Unknown species	Moderate
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1)		0.42	F4 Daphnia magna	Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1)		0.035	L2 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 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 Skeletonema costatum	Low
Algae - Chronic 96 hour NOEC, growth (mg l-1)		-	-	-
Honeybees	Contact acute 48 hour LD50 (μg bee-1)	> 0.28	R4	High
	Oral acute 48 hour LD50 (μg bee-1)	> 0.16	F3	High
	Unknown mode acute 48 hour LD50 (μg bee-1)	-	-	-
Earthworms - Acute 14 day LC50 (mg kg-1)		65	F4 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	-	-	-
	% 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 aldicarb

General:

Property		Value	Source/Quality Score/Other Information	Interpretation
Threshold of Toxicological Concern (Cramer Class)		High (class III)	-	-
Mammals - Acute oral LD50 (mg kg-1)		0.93	F4 Rat	High
Mammals - Dermal LD50 (mg kg-1 body weight)		20	L3 Rabbit	-
Mammals - Inhalation LC50 (mg l-1)		0.004	L3 Rat	-
Other Mammal toxicity endpoints		-		-
ADI - Acceptable Daily Intake (mg kg-1bw day-1)		0.003	JMPR 1995	-
ARfD - Acute Reference Dose (mg kg-1bw day-1)		0.003	JMPR 1995	-
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	Consumer exposure to aldicarb and its toxic metabolites (the sulfoxide and sulfone) occurs mainly through food residues
	Occupational	-
European MRLs		Click here for the EU MRL pesticide database
Drinking Water Standards		Non-statutory WHO drinking water guideline 0.01 mg/L	UK EA QS database, 2018	-
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		Highly toxic IARC Group 3 carcinogen, USEPA - possible human carcinogen at high doses Endocrine issues - Inhibition of 17 beta-estradiol and progesterone activity

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

Handling issues:

Property		Value	Source/Quality Score/Other Information	Interpretation
General		No information available
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
US EPA Classification (formulation)		I	-	Danger - Highly toxic
UN Number		2757
Waste disposal & packaging		-

TRANSLATIONS
for aldicarb

Language	Name
English	aldicarb
French	aldicarbe
German	Aldicarb
Danish	aldicarb
Italian	aldicarb
Spanish	aldicarb
Greek	-
Slovenian	aldikarb
Polish	aldikarb
Swedish	-
Hungarian	aldikarb
Dutch	aldicarb

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Record last updated: Tuesday 30 October 2018
Contact: aeru@herts.ac.uk