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pentachlorophenol
** PCP ** penchlorol ** chlorophen ** Translations

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

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

Description: A multi-action pesticide used to control wood boring insects, wood fungal rots and as a general herbicide

Example pests controlled: Defoliant; Wood-damaging insects including termites; Timber rot

Example applications: Cotton; Utility wood structures such as railway sleepers, utility poles, fencing

Efficacy & activity: -

Availability status: Unknown

Introduction & key dates: circa 1936

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
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 -
Chemical formula C6HCl5O
Canonical SMILES C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)O
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) IZUPBVBPLAPZRR-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C6HCl5O/c7-1-2(8)4(10)6(12)5(11)3(1)9/h12H
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, Herbicide, Fungicide, Molluscicide, Plant growth regulator, Wood preservative
Substance group Organochlorine
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Accelerates aerobic metabolism and increases heat production
CAS RN 87-86-5
EC number 201-778-6
CIPAC number 106
US EPA chemical code 063001
PubChem CID 992
Molecular mass (g mol-1) 266.34
PIN (Preferred Identification Name) -
IUPAC name pentachlorophenol
CAS name pentachlorophenol
Other status information WFD priority substance; Subject to PIC regulations; Regulated POP; Severe Marine Pollutant; Rotterdam Convention (Class Ib); UK non-statutory standard for dry soil: <0.06 mg/Kg
Relevant Environmental Water Quality Standards EU Directive 2008/105/EC EQS surface waters: annual average 0.4 ug/L; max measured 1.0 ug/L
UK statutory standard for the protection of aquatic life: annual average for inland, coastal and territorial waters: 2 ug/L
Herbicide Resistance Classification (HRAC) Not known
Herbicide Resistance Classification (WSSA) -
Insecticide Resistance Classification (IRAC) 2A
Fungicide Resistance Classification (FRAC) Not known
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 -
Example products using this active -
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details -


ENVIRONMENTAL FATE

for pentachlorophenol

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) 1000 P4 High
Solubility - In organic solvents at 20oC (mg l-1) 500000 P4 - Acetone -
150000 P4 - Benzene -
1800000 P4 - Methanol -
12000000 P4 - Ethanol -
Melting point (oC) 191 L3 -
Boiling point (oC) Decomposes before boiling L3 -
Degradation point (oC) 309 L3 -
Flashpoint (oC) Not expected to self ignite; Not highly flammable L3 -
Octanol-water partition coefficient at pH 7, 20oC P 2.09 X 1003 Calculated -
Log P 3.32 B5 High
Bulk density (g ml-1)/Specific gravity 1.99 B5 -
Dissociation constant (pKa) at 25oC 4.73 DW4 -
Note: Weak acid
Vapour pressure at 20oC (mPa) 16000 L3 Highly volatile
Henry's law constant at 25oC (Pa m3 mol-1) 4.30 X 10-01 H4 Moderately volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 4.24 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 1.43 X 10+00 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 Medium
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) 63 B5 Moderately persistent
DT50 (lab at 20oC) 48 F3 Moderately persistent
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Data DT50 range 46-63 days
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 0.03 B5 Fast
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable B5 -
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 - G3 Mobile
Koc 30
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for pentachlorophenol

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) 216 F3 (Whole body, Other literature values Log BCF range 1.2-3.2 (R3)) Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 80 B5 Rat High
Mammals - Short term dietary NOEL (mg kg-1) 3.9 L3 Rat High
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 380 G4 Anas platyrhynchos Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.17 L3 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.45 F4 Daphnia magna Moderate
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) 0.11 F3 Chironomus riparius, 2 day Moderate
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) 0.12 F3 Lemna gibba Moderate
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.08 F4 Scenedesmus quadricauda Moderate
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) 48 F4 Moderate
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
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) - - -
Mode of exposure -
Other pollinators (2) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Earthworms - Acute 14 day LC50 (mg kg-1) 48 F4 Eisenia foetida Moderate
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) 10 F4 Eisenia foetida Moderate
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect 64.0 A5 Folsomia candida, 33 day EC50 Reproduction 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

for pentachlorophenol

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) 80 B5 Rat High
Mammals - Dermal LD50 (mg kg-1 body weight) 105 L3 Rat -
Mammals - Inhalation LC50 (mg l-1) 0.355 L3 Rat -
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 Routes Public -
Occupational Readily absorbed through the skin
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards Non-statutory WHO drinking water guideline 0.009 mg/L UK EA QS database, 2018 -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Genotoxic Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

A0; B0; C0; D0; E3

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues Liver and thyroid toxicant
Heart failure may occur following acute inhalation
Bioaccumulates
IARC group 2B carcinogen; USEPA - probable human carcinogen
Endocrine issues - Weak estrogenic and anti-androgenic affect
Key: Genotoxicity
A: Chromosome aberration (EFSA database)
B: DNA damage/repair (EFSA database)
C: Gene mutation (EFSA database)
D: Genome mutation (EFSA database)
E: Unspecified genotoxicity type (miscellaneous data source)
0: No data
1: Positive
2: Mixed/ambiguous results
3: Negative
Key: Other
: 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 Prevent generation of dust
CLP classification 2013 Health: H301, H311, H315, H319, H330, H335, H351
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Carcinogen category 3: R40
T+ - Very toxic: R26
T - Toxic: R24/25
Xi - Irritant: R36/37/38
N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S1/2, S22, S36/37, S45, S52, S60, S61
WHO Classification Ib - Highly hazardous
UN Number 3155
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for pentachlorophenol

Language Name
English pentachlorophenol
French pentachlorophénol
German Pentachlorphenol
Danish pentachlorphenol
Italian pentaclorofenolo
Spanish pentaclorofenato
Greek -
Slovenian pentaklorfenol
Polish pentachlorofenol
Swedish -
Hungarian -
Dutch pentachloorfenol

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