Chlorflurenol methyl (Ref: CME 74050)
Last updated: 19/08/2023
(Also known as: methyl chlorflurenol; chlorflurecol-methyl; SAG 109; CF-125; EMD 7301)
Chlorfluenol-methyl is an obsolete herbicide and plant growth regulator. It has a low aqueous solubility and is non-volatile. It is not expected to be persistent in the environment. Whilst limited, data that is available suggests a low to moderate toxicity to biodiversity. Chlorflurenol-methyl has a low mammalian oral toxicity.
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
 
An obsolete herbicide and morphactin plant growth retardant, pruning aid and weed suppressant
Growth
Turf and lawns; Animal grasses; Trees; Shrubs; Vines
-
Considered obsolete but may be available in some countries
circa 1965; 1970, first registered USA
Not approved
Expired
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Expired
Not applicable
Yes
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
 
 
 
 
 
 
 
 
 
ISIceland
NONorway
 
 
 
 
 
 
 
 
 
Chlorfluenol-methyl is a chiral molecule. Substance is racemic.
C₁₅H₁₁ClO₃
COC(=O)C1(C2=CC=CC=C2C3=C1C=C(C=C3)Cl)O
-
LINPVWIEWJTEEJ-UHFFFAOYSA-N
InChI=1S/C15H11ClO3/c1-19-14(17)15(18)12-5-3-2-4-10(12)11-7-6-9(16)8-13(11)15/h2-8,18H,1H3
Yes
Herbicide, Plant Growth Regulator
Morphactin PGR
-
-
Synthetic
Absorbed by leaves and roots, Auxin inhibitor
2536-31-4
219-800-8
506
098801
17334
No data found
274.7
rac-methyl (9R)-2-chloro-9-hydroxy-9H-fluorene-9-carboxylate
methyl (RS)-2-chloro-9-hydroxyfluorene-9-carboxylate
methyl 2-chloro-9-hydroxy-9H-fluorene-9-carboxylate
-
-
P
19
Not applicable
Not applicable
-
White crystals
Repar Corp Uniroyal Celamerck
Morphactin Curbiset Maintain Multiprop
Usually formulated as an emulsifiable concentrate
21.8
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low
260000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Acetone
-
150000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Methanol
-
80000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Ethanol
-
24000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Isopropanol
-
155
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
Decomposes before boiling
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
155
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
-
-
-
3.98 X 1001
Calculated
-
1.6
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low
-
-
-
-
-
-
1.496
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
-
-
-
-
0.13
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low volatility
7.90 X 10-04
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Non-volatile
-
-
-
-
-
-
-
1.5
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Non-persistent
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Best available data
-
-
-
-
-
-
-
-
0.4
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Fast
-
-
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
DT₅₀ 1 day at pH 9, 22 °C
-
-
-
-
-
-
Soil adsorption and mobility
-
-
-
Cannot be calculated
-
-
-
-
-
-
-
-
-
Low risk
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Based on LogP < 3
Low risk
-
-
Known groundwater metabolites
None
None
Terrestrial ecotoxicology
12800
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
Low
-
-
-
-
-
-
-
-
> 10000
Phasianidae
Low
-
-
-
-
-
-
1350
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Low
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.16
Oncorhynchus mykiss
Moderate
-
-
-
5.1
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Daphnia magna
Moderate
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
HUMAN HEALTH AND PROTECTION
High (class III)
-
-
12800
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
Low
10000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
-
> 101.5
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
-
Intraperitoneal LD₅₀ = 1417 mg kg⁻¹
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
EU MRL pesticide database 
-
-
-
-
-
-
-
-
-
-
Carcinogen
Endocrine disruptor
XNo, known not to cause a problem
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
; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data
XNo, known not to cause a problem
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
No data found
XNo, known not to cause a problem
XNo, known not 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
 
No further information available
No information available
-
U (Unlikely to present an acute hazard)
-
-
-
chlorflurenol methyl
-
-
-
-
-
-
-
-
-
-
-
Record last updated:
19/08/2023
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