Didecyldimethylammonium chloride (Ref: P0151) |
Last updated: 26/08/2024 |
(Also known as: DDAC) |
SUMMARY |
Didecyldimethylammonium chloride is mainly used as a biocide. It is highly soluble in water and has a low volatility. It may be environmentally persistent depending on local conditions. It is highly toxic to aquatic invertebrates and moderately toxic to fish. Didecyldimethylammonium chloride also has a moderate oral mammalian toxicity and is an irritant. |
Data alerts |
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 |
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Warning: Significant data are missing |
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An antiseptic and disinfectant that is mainly used as a biocide. It shows a broad spectrum of activity against both gram-positive and gram-negative bacteria and also fungicidal activity. | |
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Phytopathogenic fungi, bacteria and algae. | |
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Citrus; Hard Surfaces; Horticultutral & medical equipment; Glasshouse structures; Linen; Non-agricultural areas such as pavements, walkways | |
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Current | |
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UK regulatory status |
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Not approved | ||
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Expired | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Netherlands | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Expired | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Additional information |
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Canada |
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Chemical structure |
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None | |
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C₂₂H₄₈ClN | |
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CCCCCCCCCC[N+](C)(C)CCCCCCCCCC.[Cl-] | |
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RUPBZQFQVRMKDG-UHFFFAOYSA-M | |
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InChI=1S/C22H48N.ClH/c1-5-7-9-11-13-15-17-19-21-23(3,4)22-20-18-16-14-12-10-8-6-2;/h5-22H2,1-4H3;1H/q+1;/p-1 | |
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Yes |
General status |
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Fungicide, Herbicide, Algicide, Other substance | |
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Cationic surfactant, Antiseptic, Bactericide, Disinfectant | |
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Quaternary ammonium compound | |
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Synthetic | |
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Broad spectrum, non-systemic | |
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7173-51-5 | |
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230-525-2 | |
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859 | |
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069149 | |
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23558 | |
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612-131-00-6 | |
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362.08 | |
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N-decyl-N,N-dimethyl-1-decanaminium chloride | |
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Chemical subject to PIC regulations | |
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Not known | |
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Not known | |
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Not applicable | |
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Not known | |
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Off-white sticky powder |
Formulations |
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Usually supplied as a soluble liquid that is diluted prior to use. |
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500000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
High | ||||||||
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600000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Acetone5 = Verified data used for regulatory purposes |
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600000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Methanol5 = Verified data used for regulatory purposes |
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250000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) n-Octanol5 = Verified data used for regulatory purposes |
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197 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
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Decomposes before boiling | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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280 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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21-55 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 3 = Unverified data of known source |
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1.00 X 1001 | Calculated | - | |||||||
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1.0 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
Low | ||||||||
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0.95 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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- | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Completely dissociated | |||||||||||
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5.9 X 10-03 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Low volatility | ||||||||
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4.3 X 10-09 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Non-volatile | ||||||||
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Degradation |
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Readily biodegradable | ||||||||||
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Stable | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
Stable | |||||||
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Stable | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Stable | |||||||
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Stable pH 5 to pH 9 at 25 °C | ||||||||||
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Soil adsorption and mobility |
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30851 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Non-mobile | |||||||
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1470000 | ||||||||||
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1.02 | ||||||||||
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EU dossier Kf range 8179-32791 mL g⁻¹, Kfoc range 908757-1599564 mL g⁻¹,1/n range 0.96-1.03 | ||||||||||
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Fate indices |
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Cannot be calculated | - | - | |||||||||||||||||||||||||
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4.3 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Calculated using the Atkinson method. Assumed 9.7E+05 OH/cm³, 12 hr4 = Verified data |
Below the level of concern for long-range air transport | ||||||||||||||||||||||||||
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Low risk | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Based on LogP < 35 = Verified data used for regulatory purposes |
Low risk | |||||||||||||||||||||||||
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Known metabolites |
None
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Terrestrial ecotoxicology |
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150 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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> 1000 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Eisenia foetida4 = Verified data |
Low | ||||||||
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Aquatic ecotoxicology |
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1.16 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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0.032 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Danio rerio3 = Unverified data of known source |
Moderate | ||||||||
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0.094 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Daphnia magna3 = Unverified data of known source |
High | ||||||||
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0.01 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Daphnia magna3 = Unverified data of known source |
Moderate | ||||||||
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> 0.069 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents / FAO data, IPCS INCHEM data (US EPA Databases Related to Pesticide Risk Assessment ) Ceriodaphnia dubia LC₅₀4 = Verified data |
High | ||||||||
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General |
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High (class III) | - | - | ||||||||
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150 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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4000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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100 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) default3 = Unverified data of known source |
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No consumer exposure due to pattern of use | |||||||||
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GB MRL expected to deviate from the EU MRL in mid-2023 | ||||||||||
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Health issues |
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May cause serious eye damage |
Handling issues |
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Corrosive Combustible IMDG Transport Hazard Class 8 Will emit hazardous combustion gases in the event of fire |
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Health: H302, H314, H319, H335 Handling: H227 Environment: H400 |
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Not listed (Not listed) | |||
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UN2923 | |||
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Packaging Group III (minor danger) | |||
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Chemically stable under standard ambient conditions |
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didecyldimethylammonium chloride | ||
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chlorure de didécyldiméthylammonium | ||
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Didecyldimethylammoniumchlorid | ||
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cloruro de didecildimetilamonio | ||
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Record last updated: | 26/08/2024 |
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 |