Chlorophenols
Chlorophenols have been widely used as preservatives against rot and bluestaining of wood by fungi in the sawmilling industry in Finland. The most commonly used wood preservatives consist mainly of 2,3,4,6-Tetrachlorophenol, 2,4,6-Trichlorophenol, Pentachlorophenol. (ref. ID; 6065)

[Chlorophenol]
Chemical formula; ClC6H4OH
Isomer: 2- CAS[95-57-8] UN2021
Isomer: 3- CAS[108-43-0] UN2020
Isomer: 4- CAS[106-48-9] UN2020

2-Chlorophenol
Chemical characteristics; Lipophilicity log P 2.17. (ref. ID; 6959) Logarithm of 1-octanol/water partition coefficient log Kow 2.15. (ref. ID; 6981)
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia fetida (ref. ID; 6959)

3-Chlorophenol
Chemical characteristics; Lipophilicity log P(oct) 2.5. (ref. ID; 6953)
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia andrei (ref. ID; 6978)
Oligochaeta: Eisenia fetida andrei (ref. ID; 6953)
Oligochaeta: Lumbricus rubellus (ref. ID; 6953, 6978)

4-Chlorophenol
Chemical characteristics; Logarithm of 1-octanol/water partition coefficient log Kow 2.39. (ref. ID; 6981)
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

[Dichlorophenol]
Chemical formula; C6H4Cl2O
Isomer: 2,3- CAS[576-24-9]
Isomer: 2,4- CAS[120-83-2] UN2020 fungicide
Isomer: 2,5- CAS[583-78-8] UN2020
Isomer: 2,6- CAS[87-65-0] UN2020
Isomer: 3,4- CAS[95-77-2] UN2020
Isomer: 3,5- CAS[591-35-5] UN2020

2,3-Dichlorophenol
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

2,4-Dichlorophenol
Chemical characteristics; Lipophilicity log P 2.75. (ref. ID; 6959) Logarithm of 1-octanol/water partition coefficient log Kow 3.06. (ref. ID; 6981)
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta; Eisenia fetida (ref. ID; 6959)

2,5-Dichlorophenol
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

2,6-Dichlorophenol
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Lumbriculus variegatus (ref. ID; 4445)

3,4-Dichlorophenol
Chemical characteristics; Lipophilicity log P(oct) 3.2. (ref. ID; 6953)
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia andrei (ref. ID; 6978)
Oligochaeta: Eisenia fetida andrei (ref. ID; 6953)
Oligochaeta: Lumbricus rubellus (ref. ID; 6953, 6978)

3,5-Dichlorophenol
Test organisms;
Protozoa: Spirostomum ambiguum (ref. ID; 6983)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

[Trichlorophenol]
Chemical formula; Cl3C6H2OH
Isomer: 2,3,5-
Isomer: 2,4,5- CAS[95-95-4] UN2020
Isomer: 2,4,6- CAS[88-06-2] UN2020
Isomer: 3,4,5- CAS[609-19-8]

2,3,5-Trichlorophenol
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

2,4,5-Trichlorophenol
Chemical characteristics; Lipophilicity log P(oct) 3.9. (ref. ID; 6953)
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia andrei (ref. ID; 6978)
Oligochaeta: Eisenia fetida andrei (ref. ID; 6953)
Oligochaeta: Lumbriculus variegatus (ref. ID; 4445)
Oligochaeta: Lumbricus rubellus (ref. ID; 6953, 6978)

2,4,6-Trichlorophenol
Chemical characteristics; Lipophilicity log P 3.38. (ref. ID; 6959)
Purpose for use; fungicide
Test organisms;
Protozoa: Spirostomum teres (ref. ID; 6838)
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia fetida (ref. ID; 6959)
Oligochaeta: Lumbriculus variegatus (ref. ID; 4445)

3,4,6-Trichlorophenol
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 3327)

[Tetrachlorophenol]
Chemical formula; C6H2Cl4O
Isomer: 2,3,4,5-
Isomer: 2,3,4,6- CAS[58-90-2]
Isomer: 2,3,5,6- CAS[935-95-5]

2,3,4,5-Tetrachlorophenol
Chemical characteristics; Lipophilicity log P(oct) 4.5. (ref. ID; 6953)
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)
Oligochaeta: Eisenia andrei (ref. ID; 6978)
Oligochaeta: Eisenia fetida andrei (ref. ID; 6953)
Oligochaeta: Lumbricus rubellus (ref. ID; 6953, 6978)

2,3,4,6-Tetrachlorophenol
Chemical characteristics; Lipophilicity log P(oct) 4.4. (ref. ID; 6953)
Test organisms;
Oligochaeta: Lumbriculus variegatus (ref. ID; 4445)

2,3,5,6-Tetrachlorophenol
Test organisms;
Protozoa: Tetrahymena pyriformis (ref. ID; 6709)

[Pentachlorophenol] CAS[87-86-5] UN3155
PCP is one of several important contaminants identified in the New Zealand environment due to its extensive use by the timber industry, which used it as an antisapstain fungicide to treat sawn pine until the late 1980s. (ref. ID; 4956)

Trade name; PCP (J, I, B): Chlon, Penta, Rhone Penta, Santobrite
Chemical formula; C6Cl5OH
Chemical characteristics; Lipophilicity log P(oct) 5.0. (ref. ID; 6953) 5.01 (ref. ID; 6959)
Purpose for use; acaricide, fungicide, herbicide
Toxicity; LD50 (oral): rat 210 mg/kg, mouse 80 mg/kg
Test organisms;
Green algae (formerly including protozoa): Chlamydomonas reinhardi (ref. ID; 1319)
Protozoa: Euglena gracilis (ref. ID; 3548)
Protozoa: Colpidium campylum (ref. ID; 6784)
Protozoa: Tetrahymena pyriformis (ref. ID; 979, 1319, 6709)
Rotifera: Asplanchna girodi (ref. ID; 3329)
Rotifera: Brachionus calyciflorus (ref. ID; 1717, 3330)
Rotifera: Brachionus rubens (ref. ID; 818)
Rotifera: community (ref. ID; 3329)
Oligochaeta: Eisenia andrei (ref. ID; 6831, 6948, 6978)
Oligochaeta: Eisena foetida (ref. ID; 6898, 6955, 6959)
Oligochaeta: Eisenia fetida andrei (ref. ID; 831, 6953, 6954)
Oligochaeta: Enchytraeus albidus (ref. ID; 5909)
Oligochaeta: Lumbriculus variegatus (ref. ID; 4445)
Oligochaeta: Lumbricus rubellus (ref. ID; 6953, 6978)
Oligochaeta: LUmbricus terrestris (ref. ID; 6899)
Nematoda: Acrobeloides buetschlii (ref. ID; 1276)
Nematoda: Aphelenchus avenae (ref. ID; 1276)
Nematoda: Aporcelaimellus obtusicaudatus (ref. ID; 1276)
Nematoda: Caenorhabditis elegans (ref. ID; 1276)
Nematoda: Cephalobus persegnis (ref. ID; 1276)
Nematoda: Diplogasteritus sp. (ref. ID; 1276)
Nematoda: Dorylaimus stagnalis (ref. ID; 1276)
Nematoda: Plectus acuminatus (ref. ID; 1276)
Nematoda: Prionchulus punctatus (ref. ID; 1276)
Nematoda: Rhabditis sp. (ref. ID; 1276)
Nematoda: Tobrilus gracilis (ref. ID; 1276)
Nematoda: Tylenchus elegans (ref. ID; 1276)
Aquatic mesocosms (ref. ID; 4956)

Sodium pentachlorophenate (NaPCP) CAS[131-52-2]
Chemical formula; C6Cl5ONa
Purpose for use; organochlorine pesticide
Test organisms;
Protozoa: Euglena gracilis (ref. ID; 3312)
Protozoa: Spirostomum teres (ref. ID; 6838)
Rotifera: Brachionus calyciflorus (ref. ID; 121, 127, 1317, 2168, 3330, 6108, 6118)
Rotifera: Brachionus plicatilis (ref. ID; 1321)
Rotifera: Brachionus rubens (ref. ID; 820)
Nematoda: Caenorhabditis elegans (ref. ID; 6854)

[Barium bis(pentachlorophenolate)]
Trade name; PCP-Ba (J): 5-B
Chemical formula; (C6Cl5O)2Ba
Purpose for use; fungicide
Toxicity; LD50 (oral): mouse > 1000 mg/kg
[2,3,4,5,6-pentachlorophenoxyhydrazine]
Trade name; PCP-hydrazine
Chemical formula; C6H3Cl5N2O
Purpose for use; herbicide