Cybutryne
Last updated: 22/01/2023
(Not known by any other names)
Cybutyrn is a phytoxic biocide. It has a low aqueous solubility and is non-volatile. It is moderately toxic to fish, aquatic invertebrates and plant. It is highly toxic to algae. No information is available on its impact on human health.
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 effective herbicidal biocide mainly used as an antifouling agent in paints for boats and other water vessels
Slimes; Moulds; Mosses; Algae
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Current
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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
 
 
 
 
 
 
 
 
 
ISIceland
NONorway
 
 
 
 
 
 
 
 
 
None
C₁₁H₁₉N₅S
CC(C)(C)NC1=NC(=NC(=N1)NC2CC2)SC
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HDHLIWCXDDZUFH-UHFFFAOYSA-N
InChI=1S/C11H19N5S/c1-11(2,3)16-9-13-8(12-7-5-6-7)14-10(15-9)17-4/h7H,5-6H2,1-4H3,(H2,12,13,14,15,16)
Yes
Algistat, Herbicide, Other substance
Biocide, Antifoulant
Triazine biocide; Triazine herbicide
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-
Synthetic
Reduces plant photosynthetic ability; Highly phytotoxic
28159-98-0
248-872-3
None allocated
128996
91590
No data found
253.37
N2-tert-butyl-N4-cyclopropyl-6-(methylsulfanyl)-1,3,5-triazine-2,4-diamine
N2-tert-butyl-N4-cyclopropyl-6-methylthio-1,3,5-triazine-2,4-diamine
N-cyclopropyl-N-(1,1-dimethylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine
Marine pollutant
-
Not known
Not known
Not applicable
Not applicable
-
White crystalline powder
Zhejiang Zhongshan Ciba Speciality Chemicals
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7.0
R4 R = Peer reviewed scientific publications 4 = Verified data
Low
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-
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128
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
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-
-
-
-
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8.91 X 1003
Calculated
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3.95
R4 R = Peer reviewed scientific publications 4 = Verified data
High
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-
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0.088
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Low volatility
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14
R4 R = Peer reviewed scientific publications 4 = Verified data
Slow
Around 2 weeks in natural waters
Stable
R4 R = Peer reviewed scientific publications 4 = Verified data
Stable
Stable at all relevant pH values
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-
-
-
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Soil adsorption and mobility
-
R4 R = Peer reviewed scientific publications 4 = Verified data
Slightly mobile
1569
Koc literature values range 548 to 2590 g l⁻¹
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Cannot be calculated
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160
R4 R = Peer reviewed scientific publications 4 = Verified data
Threshold for concern
nd
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None
Terrestrial ecotoxicology
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-
-
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-
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0.86
R4 R = Peer reviewed scientific publications 4 = Verified data
Oncorhynchus mykiss
Moderate
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-
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2.40
R4 R = Peer reviewed scientific publications 4 = Verified data
Daphnia magna
Moderate
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-
-
-
-
-
-
-
-
-
-
-
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-
0.011
R4 R = Peer reviewed scientific publications 4 = Verified data
Lemna gibba
Moderate
0.0023
R4 R = Peer reviewed scientific publications 4 = Verified data
Selenastrum capricornutum
High
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-
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HUMAN HEALTH AND PROTECTION
High (class III)
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EU MRL pesticide database 
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0.1
R4 R = Peer reviewed scientific publications 4 = Verified data
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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
?Possibly, status not identified
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
✓Yes, known to cause a problem
XNo, known not to cause a problem
No data found
Respiratory tract irritant
Skin irritant
Skin sensitiser
No data found
No data found
No data found
Eye irritant
Phototoxicant
 
No data found
No data found
 
Possible liver and spleen toxicant
No information available
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cybutryne
cybutryne
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Record last updated:
22/01/2023
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