Cloprop |
![]() Last updated: 05/01/2021 |
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(Also known as: 3-CPA; metachlorphenprop ; 3CP) |
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Largely obsolete but one used to reduce foliage growth, increase fruit size and for fruit thinning | |
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Growth | |
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Fruit, mainly pineapples and plums | |
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Obsolete | |
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UK regulatory status |
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Not approved | ||
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Not applicable | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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Cloprop is a chiral molecule. The technical material is an isomeric mixture. | |
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C₉H₉ClO₃ | |
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CC(C(=O)O)OC1=CC(=CC=C1)Cl | |
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No data | |
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YNTJKQDWYXUTLZ-UHFFFAOYSA-N | |
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InChI=1S/C9H9ClO3/c1-6(9(11)12)13-8-4-2-3-7(10)5-8/h2-6H,1H3,(H,11,12)/f/h11H | |
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Yes |
General status |
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Herbicide, Plant growth regulator | |
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Chlorophenoxy acid or ester | |
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Synthetic | |
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Absorbed by foliage but not significantly translocated | |
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101-10-0 | |
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202-915-2 | |
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021201 | |
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7542 | |
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200.62 | |
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rac-(2R)-2-(3-chlorophenoxy)propanoic acid | |
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(RS)-2-(3-chlorophenoxy)propionic acid | |
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2-(3-chlorophenoxy)propanoic acid | |
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Not known | |
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Not known | |
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Not applicable | |
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Not applicable | |
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Colourless to light brown crystalline solid |
Formulations |
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Usually supplied as a liquid suspension or soluble concentrate |
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1200 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
High | ||||||||
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790900 | L3 L = Pesticide manuals and hard copy reference books / other sources Acetone3 = Unverified data of known source |
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710800 | L3 L = Pesticide manuals and hard copy reference books / other sources Ethanol3 = Unverified data of known source |
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716500 | L3 L = Pesticide manuals and hard copy reference books / other sources Methanol3 = Unverified data of known source |
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24200 | L3 L = Pesticide manuals and hard copy reference books / other sources Benzene3 = Unverified data of known source |
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113 | CA3 CA = Medical and toxicological databases and information systems e.g. TOXNET (click here ) 3 = Unverified data of known source |
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2.45 X 1002 | Calculated | - | |||||||
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2.39 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
Low | ||||||||
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3.62 | CA2 CA = Medical and toxicological databases and information systems e.g. TOXNET (click here ) 2 = Unverified data of unknown source |
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Weak acid | |||||||||||
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1.67 X 10-03 | CA3 CA = Medical and toxicological databases and information systems e.g. TOXNET (click here ) 3 = Unverified data of known source |
Non-volatile | ||||||||
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Degradation |
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Soil adsorption and mobility |
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- | CA2 CA = Medical and toxicological databases and information systems e.g. TOXNET (click here ) 2 = Unverified data of unknown source |
Moderately mobile | |||||||
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Fate indices |
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Low risk | Q3 Q = Miscellaneous internet resources Based on LogP < 33 = Unverified data of known source |
Low risk | |||||||
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> 3360 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Low | ||||||||
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> 5620 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Anas platyrhynchos4 = Verified data |
Low | ||||||||
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21.0 | L3 L = Pesticide manuals and hard copy reference books / other sources Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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> 3360 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Low | ||||||||
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2000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rabbit3 = Unverified data of known source |
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Low risk as no longer used | |||||||||
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Dermal absorption is an important route of exposure however as this substance is largely obsolete risk is low | ||||||||||
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Health issues |
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May cause irritation of the digestive tract May be harmful if swallowed |
Handling issues |
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No information available | |||
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Health: H302, H315, H319, H335 | |||
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Xi - Irritant: R36/37/38 | |||
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S26, S36 | |||
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NL (Not listed) | |||
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cloprop | ||
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cloprop | ||
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cloprop | ||
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Record last updated: | 05/01/2021 |
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 |