Simetryn
Last updated: 20/01/2023
(Also known as: simetryne; cymetrin; gy-bon)
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
A triazine herbicide mainly used for broad-leaved weed and grass control in paddy rice and other crops
Barnyardgrass; Crabgrass; Fescue
Rice; Corn; Soybean; Cereals including wheat; Cotton; Peanuts
-
Considered obsolete but may be available in some countries
-
Not approved
Not applicable
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Not applicable
Not applicable
No
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
 
 
 
 
 
 
 
 
 
None
C₈H₁₅N₅S
CCNC1=NC(=NC(=N1)SC)NCC
-
MGLWZSOBALDPEK-UHFFFAOYSA-N
InChI=1S/C8H15N5S/c1-4-9-6-11-7(10-5-2)13-8(12-6)14-3/h4-5H2,1-3H3,(H2,9,10,11,12,13)
Yes
Cambridge Crystallographic Data Centre diagrams
Common Name
Relationship
Link
simetryn
-
Herbicide
Triazine herbicide; Methylthiotriazine herbicdie
-
-
Synthetic
Selective systemic, absorbed through roots and foliage, inhibits photosynthesis (photosystem II).
1014-70-6
213-801-7
179
294300
13905
613-065-00-0
213.30
N2,N4-diethyl-6-(methylsulfanyl)-1,3,5-triazine-2,4-diamine
N2,N4-diethyl-6-methylthio-1,3,5-triazine-2,4-diamine
N,N'-diethyl-6-(methylthio)-1,3,5-triazine-2,4-diamine
-
-
C1
5
Not applicable
Not applicable
-
White crystalline powder
Obsolete - not thought to be commercially available for crop protection applications
-
450
at 25 °C
Moderate
400000
Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source
Acetone
-
380000
Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source
Methanol
-
300000
Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source
Toluene
-
4000
Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source
Hexane
-
82.5
-
337
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
-
-
-
-
-
-
6.31 X 1002
Calculated
-
2.8
Moderate
-
-
-
-
-
-
1.02
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
4.0
-
Weak acid
9.5 X 10-02
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source
Low volatility
5.07 X 10-05
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source
Non-volatile
-
-
-
-
-
-
-
60
Moderately persistent
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Soil adsorption and mobility
-
Moderately mobile
200
-
-
-
-
-
-
-
-
3.02
Calculated
High leachability
3.17 X 10-01
Calculated
-
-
Medium
Calculated
-
Moderately mobile
Calculated
-
27.0
R4 R = Peer reviewed scientific publications 4 = Verified data
Whole body
Low potential
Not available
-
None
Terrestrial ecotoxicology
> 750
Rat
Moderate
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
> 7.0
Oncorhynchus mykiss
Moderate
-
-
-
> 50.0
Daphnia magna
Moderate
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.0098
Anabaena flos-aquae
High
-
-
-
-
-
-
-
-
-
HUMAN HEALTH AND PROTECTION
High (class III)
-
-
> 750
Rat
Moderate
3100
Rat
-
4.88
Rat
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
EU MRL pesticide database 
-
-
-
-
-
-
-
-
-
-
Carcinogen
Endocrine disruptor
No data found
A0 A = Chromosome aberration (EFSA database) 0 = No data
; 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
No data found
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
No data found
XNo, known not to cause a problem
No data found
Respiratory tract irritant
Skin irritant
Skin sensitiser
No data found
XNo, known not to cause a problem
No data found
Eye irritant
Phototoxicant
 
XNo, known not to cause a problem
No data found
 
Slightly toxic
IMDG Transport Code is usually 9
-
III (Slightly hazardous)
Usually 3077
Packaging Group III (minor danger)
simetryn
simetryne
Simetryn
-
simetrina
simetrina
-
simetryn
-
simetryn
-
Record last updated:
20/01/2023
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