Benzobicyclon (Ref: SB 500)
Last updated: 18/01/2023
(Also known as: SAN 1315H)
Benzobicyclon is an unclassified herbicide used to vontrol annual and perennial weeds mainly in rice crops. It has a loew aqueous solubility and is not volatile. Environmenrtal persistence data is not available. It has a low to moderate level of toxicity to most biodiversity. It has a low oral toxicity to mammals but little else has been published regarding its impacts 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
Used to control annual and perennial weeds in rice crops
Barnyard grass; Yellow nutsedge; Ducksalad; Water plantain; Bog pondweed; Rice cutgrass
Rice
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-
2001
Not approved
Not applicable
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Not applicable
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
 
 
 
 
 
 
 
 
 
Benzobicyclon is a chiral molecule.Substance is racemic.
C₂₂H₁₉ClO₄S₂
CS(=O)(=O)C1=CC(=C(C=C1)C(=O)C2=C(C3CCC(C3)C2=O)SC4=CC=CC=C4)Cl
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VIXCLRUCUMWJFF-UHFFFAOYSA-N
InChI=1S/C22H19ClO4S2/c1-29(26,27)16-9-10-17(18(23)12-16)21(25)19-20(24)13-7-8-14(11-13)22(19)28-15-5-3-2-4-6-15/h2-6,9-10,12-14H,7-8,11H2,1H3
Yes
Cambridge Crystallographic Data Centre diagrams
Common Name
Relationship
Link
benzobicyclon
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Herbicide
Carbobicyclic compound; Cyclic ketone compound
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Synthetic
Selective, absorbed through roots and basal stems and translocated. Bleaching inhibition of 4-hydroxyphenyl-pyruvate-dioxygenase.
156963-66-5
605-078-5
None allocated
215101
11236201
No data found
446.96
rac-(1R,5R)-3-[2-chloro-4-(methanesulfonyl)benzoyl]-4-(phenylsulfanyl)bicyclo[3.2.1]oct-3-en-2-one
3-(2-chloro-4-mesylbenzoyl)-2-phenylthiobicyclo[3.2.1]oct-2-en-4-one
3-[2-chloro-4-(methylsulfonyl)benzoyl]-4-(phenylthio)bicyclo[3.2.1]oct-3-en-2-one
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F2
27
Not applicable
Not applicable
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Pale yellow crystalline solid
Usually supplied as granules or suspension concentrates
0.052
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low
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-
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1.26 X 1003
Calculated
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3.1
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
High
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-
-
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1.45
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
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-
-
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0.056
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low volatility
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Soil adsorption and mobility
-
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
Slightly mobile
1104
Estimated
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-
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-
-
-
-
-
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-
Cannot be calculated
-
-
-
-
-
-
-
-
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None
Terrestrial ecotoxicology
> 5000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
Low
-
-
-
-
-
-
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-
> 2250
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Anas platyrhynchos
Low
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-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
200
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low
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-
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-
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-
-
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> 10.0
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Cyprinus carpio
Moderate
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-
> 1.0
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Daphnia magna
Moderate
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1.0
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Pseudokirchneriella subcapitata
Moderate
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-
-
-
-
-
-
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HUMAN HEALTH AND PROTECTION
High (class III)
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-
> 5000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
Low
2000
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
-
2.72
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
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EU MRL pesticide database 
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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
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
No data found
No data found
Eye irritant
Phototoxicant
 
No data found
No data found
 
No further information available
No information available
Not classified: Obsolete
Not listed
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benzobicyclon
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Record last updated:
18/01/2023
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