Chlorothalonil

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Description uses References

Product Name: Chlorothalonil
CAS No.: 1897-45-6
Chemical Name: Chlorothalonil
Synonyms: TPN;TETRACHLOROISOPHTHALONITRILE;CHLORTHALONIL;2,4,5,6-TETRACHLOROISOPHTHALONITRILE;Ole;REACH;DACONIL;Exotherm;CHLOROTALONIL;1,3-Benzenedicarbonitrile, 2,4,5,6-tetrachloro-
CBNumber: CB4132626
Molecular Formula: C8Cl4N2
Formula Weight: 265.91
MOL File: 1897-45-6.mol

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Chlorothalonil Property

Melting point:: 250-251°
Boiling point:: bp760 350°
Density: d425 1.7
vapor pressure: 7.6 x 10^-5 Pa (25 °C)
Flash point:: 2 °C
storage temp.: 0-6°C
solubility: 180mg/L in organic solvents at 20 ℃
form: Powder
Water Solubility: 0.6-1.2 mg l^-1 (25 °C)
color: White
Odor: odorless in pure form
Merck: 14,2166
BRN: 1978326
Exposure limits: An experimental carcinogen.
Stability:: Light Sensitive
InChIKey: CRQQGFGUEAVUIL-UHFFFAOYSA-N
LogP: 2.94 at 25℃
CAS DataBase Reference: 1897-45-6(CAS DataBase Reference)
NIST Chemistry Reference: Tetrachloroisophthalonitrile(1897-45-6)
IARC: 2B (Vol. Sup 7, 73) 1999
EPA Substance Registry System: Chlorothalonil (1897-45-6)

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Safety

Hazard Codes: T+;N,N,T+,Xn,F
Risk Statements: 26-37-40-41-43-50/53-36-20/21/22-11
Safety Statements: 28-36/37/39-45-60-61-36/37-26-16
RIDADR: 3276
WGK Germany: 3
RTECS: NT2600000
HazardClass: 6.1(a)
PackingGroup: I
HS Code: 29269090
Hazardous Substances Data: 1897-45-6(Hazardous Substances Data)
Toxicity: LD50 orally in rats: >10.0 g/kg (Turner)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H317May cause an allergic skin reaction

H318Causes serious eye damage

H330Fatal if inhaled

H335May cause respiratory irritation

H351Suspected of causing cancer

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 36791
Product name: Chlorothalonil
Purity: PESTANAL
Packaging: 250mg
Price: $66
Updated: 2024/03/01

TCI Chemical

Product number: T0895
Product name: Tetrachloroisophthalonitrile
Purity: >98.0%(GC)
Packaging: 25g
Price: $193
Updated: 2024/03/01

Sigma-Aldrich

Product number: N11454
Product name: Chlorothalonil
Purity: analytical standard
Packaging: 250mg
Price: $75.1
Updated: 2022/05/15

Cayman Chemical

Product number: 24142
Product name: Chlorothalonil
Packaging: 100mg
Price: $37
Updated: 2024/03/01

TRC

Product number: C411250
Product name: Chlorothalonil
Packaging: 500mg
Price: $65
Updated: 2021/12/16

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Chlorothalonil Chemical Properties,Usage,Production

Description

Chlorothalonil is a broad-spectrum organic fungicide mainly used to control fungi that threatens a number of agricultural crops, vegetables, trees, fruits, turf and paints, etc. It can also serves as a wood protectant, pesticide, acaricide, which is effective to kill mildew, bacteria, algae, and insects. Besides, it can commercially act as a preservative additive in several paints, resins, emulsions, coatings and can be used on commercial grasses such as golf courses and lawns.
Chlorothalonil was first registered by the EPA in 1966. It is environmentally persistent and binds strongly with soil, whose expected half-life in aerobic soils is one to three months. Chlorothalonil functions by reducing the intracellular glutathione molecules of fungal to alternate its forms which affects the essential enzymatic reactions of fungal, ultimately leading to cell death.

uses

Chlorothalonil is a fungicide with a broad spectrum of activity used mainly in agriculture but also on turf, lawns and ornamental plants. It protects plants against a variety of fungal infections such as rusts, downy mildew, leaf spot, scabs, blossom blight and black pod. Crops protected include pome fruit, stone fruit, citrus, currants, cranberries, strawberries, bananas, vines, hops, tomatoes, green vegetables, tobacco, coffee, tea, soya bean, groundnuts, potatoes, onions, cereals and sugar beet. In addition, it is used in wood preservatives, fish net coatings and anti-fouling paints.

References

http://www.toxipedia.org/display/toxipedia/Chlorothalonil
http://pmep.cce.cornell.edu/profiles/extoxnet/carbaryl-dicrotophos/chlorothalonil-ext.html
https://en.wikipedia.org/wiki/Chlorothalonil

Description

Chlorothalonil is a pesticide fungicide commonly used in the cultivation of ornamental plants and flowers, rice, and onions. In banana plantations it is used in fumigations by airplanes. It can be used as a preservative of paints and of woods. Chlorothalonil can induce contact urticaria, irritant and allergic contact dermatitis, erythema dychromicum perstans or folliculitis mainly in agricultural workers, in those in wood-related professions or in hortieulturists.

Chemical Properties

Chlorothalonil is a combustible, white, odorless, crystalline solid

Uses

Chlorothalonil is a non-systemic foliar fungicide with protective activity. It is used to control a broad spectrum of fungal diseases in fruit (pome, stone, citrus, etc.), berries, vegetables, cucurbits, root crops, soyabeans, ornamentals and turf.

Uses

Chlorothalonil is a polychlorinated aromatic broad spectrum non-systematic fungicide. Chlorothalonil is used heavily in agriculture field on crops such as peanuts, potatoes and tomatoes. Chlorothaloni l is a probable human carcinogen (Group B2) and is highly toxic to fish and aquatic invertabrates.

Definition

ChEBI: A dinitrile that is benzene-1,3-dicarbonitrile substituted by four chloro groups. A non-systemic fungicide first introduced in the 1960s, it is used to control a range of diseases in a wide variety of crops.

General Description

Colorless crystals or granules or light gray powder. Melting point 250-251°C. No odor when pure; technical grade has a slightly pungent odor. A fungicide formulated as water-dispersible granules, wettable powder, or dust.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Chlorothalonil is stable in neutral or acidic aqueous media. May react violently with strong oxidizing acids [Farm Chemicals Handbook]. Incompatible with other oxidizing agents such as peroxides and epoxides. Breaks down slowly in basic aqueous media (half-life 38.1 days at pH 9. [Farm Chemicals Handbook].

Health Hazard

Chlorothalonil is an irritant to the skin and eyes and has been reported to produce allergic contact dermatitis in exposed workers.

Fire Hazard

Literature sources indicate that Chlorothalonil is nonflammable.

Flammability and Explosibility

Not classified

Agricultural Uses

Fungicide: Chlorothalonil is a broad-spectrum fungicide. It is used on vegetables, peanuts, potatoes, small fruits, trees, turf, roses, ornamentals, and other crops. In California, the top crops are tomatoes, onions, celery, and landscaping. It targets fungal blights, needlecasts, and cankers on conifer trees. This is the second most used fungicide in the U.S. It can be found in formulations with many other pesticides

Trade name

ATLAS CROPGARD®; BANOL C®; BB CHLOROTHALONIL®; BOMmHgDIER®; BRAVO®; BRAVO® 6 F; BRAVO® 500; BRAVO® 6 F; BRAVO ULTREX®; BRAVO-W-75®; CHILTERN OLE®; CONTACT® 75; DAC® 2787; DACONIL®; DACONIL® 2787 FUNGICIDE; DACONIL® 2787 W; DACONIL® F; DACONIL® M; DACONIL® TURF; DACOSOIL®; DIVA FUNGICIDE®[C]; ECHO®; EXOTHERM®; EXOTHERM TERMIL®; FORTURF®; FUNGINIL®; IMPACT EXCEL®; JUPITAL®; NUOCIDE®; OLE®; PILLARICH®; POWER CHLOROTHALONIL® 50; REPULSE®; RIDOMIL GOLD/BRAVO®; SICLOR®; SIPCAM® UK ROVER 5000; SWEEP®; TER-MIL®; TPN®; TPN (PESTICIDE)®; TRIPART FABER®; TRIPART ULTRAFABER®; TUFFCIDE®

Contact allergens

Chlorothalonil is a fungicide widely used in the cultivation of ornamental plants and flowers, rice, and onions. In banana plantations it is used in fumigations by airplanes. It can be used as a preservative of paints and woods. It can induce contact urticaria, irritant and allergic contact dermatitis, erythema dyschromicum perstans, or folliculitis mainly in agricultural workers, wood-related professions, or in horticulturists.

Pharmacology

Mechanism of action of this fungicide may be attributed to inhibition of physiological activities of fungal cell constituents by binding reaction. The reaction was observed in buffer solution to substitute hydroxyethylthio radical(s) of 2-mercaptoethanol for chlorine radical(s) on the benzene ring of the fungicide molecule preferably at 4-position (i.e., also 6-) followed by other positions (5). Similar reactions in fungal cells were observed between the fungicide and glutathione and high molecular weight cell constituents having a sulfhydryl group (5,6). The fungicide inhibits activities of thiol-dependent enzymes such as alcohol dehydrogenase, gyceraldehyde-3-phosphate dehydrogenase, and malate dehydrogenase (5,6). Preliminary addition of glutathione or dithiothreitol protects the thiol enzymes from inhibition but later addition does not reverse the enzyme inhibition. Chymotrypsin, a non-thiol enzyme, was not inhibited by this fungicide. Binding of the fungicide to the sulfhydryl group of cell constituents appears to be the primary mode of its action.

Safety Profile

Suspected carcinogen with experimental carcinogenic data. Moderately toxic by skin contact and intraperitoneal routes. Mildly toxic by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cl-, NOx, and CN-. See also NITRILES.

Potential Exposure

Chlorothalonil is a broad spectrum fungicide; used as fungicide in coatings; caulk, wood preservative, and antifouling systems. Therefore, people involved in its manufacture, formulation, and application can be exposed.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least2030 min, occasionally lifting upper and lower lids. Seekmedical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit

Carcinogenicity

Chlorothalonil was not mutagenic in a variety of assays, nor did it bind to DNA.3 The compound does not appear to have genotoxic potential and probably exerts its carcinogenic action in rodents via a nongenotoxic mechanism. 3 Rodent models may be a poor predictor of carcinogensis in humans because of species differences in metabolic pathways leading to carcinogenesis in the kidney and the lack of a comparable organ (forestomach) in humans.
The IARC has determined that there is sufficient evidence for carcinogenicity of chlorothalonil in experimental animals and inadequate evidence in humans.

Environmental Fate

Biological. From the first-order biotic and abiotic rate constants of chlorothalonil in estuarine water and sediment/water systems, the estimated biodegradation half-lives were 8.1–10 and 1.8–5 days, respectively (Walker et al., 1988).
Soil. Metabolites identified in soil were 1,3-dicyano-4-hydroxy-2,5,6-trichlorobenzene, 1,3-dicarbamoyl-2,4,5,6-tetrachlorobenzene and 1-carbamoyl-3-cyano-4-hydroxy-2,5,6- trichlorobenzene (Rouchaud et al., 1988). The half-life was reported as 4.
Groundwater. According to the U.S. EPA (1986) chlorothalonil has a high potential to leach to groundwater
Plant. Degrades in plants to 4-hydroxy-2,5,6-trichloroisophthalonitrile (Hartley and Kidd, 1987), 1,3-dicyano-4-hydroxy-2,5,6-trichlorobenzene and 1,3-dicarbamoyl-2,4,5,6- tetrachlorobenzene (Rouchaud et al., 1988). No evidence of degradation products were reported in apple foliage 15 days after application. The half-life of chlorothalonil was 4.1 days (Gilbert, 1976)

Metabolic pathway

By in vitro incubation of 14C-chlorothalonil (CTL) with rat stomach, duodenum, and cecum contents, with dog stomach, duodenum, and colon contents, and with human feces and stomach contents, transformation of CTL mostly occurs in rat cecum contents, dog colon contents, and human feces, in which unchanged CTL accounts for 46.7, 29.7, and 22.6% of applied radioactivity, respectively. In those incubations, the identified metabolites are 2,5,6-trichloro-4- methylthioisophthalonitrile, 2,5,6-trichloro-4- thioisophthalonitrile, 3-thia-1-cyano-2,5,6- trichloroisoindolinone, 2,5,6-trichloro-4- hydroxyisophthalonitrile, and 2,5,6- trichloroisophthalonitrile. In rats, CTL is transformed to 4,6-bis(N-acetylcystein-S-yl)-2,5- dichloroisophthalonitrile.
The photolysis of CTL solutions in alcohols (ethanol and methanol separately) with exposure to UV irradiation yields 4,5,7-trichloro-6-cyano-3- methylbenzo-g -lactone and dichlorobenzo-bis-g -lactone derivatives as major degradation products in ethanol. In methanol, 4,5,7-trichloro-6-cyanobenzo-g -lactone is the only photoproduct detected.

Metabolism

Degradation pathways of chlorothalonil in upland and paddy soils (7) and by soil bacteria (8) were studied, and most initial products were identified to be the results of chlorine substitution reactions, by hydrogen (i.e., dechlorination), by hydroxyl, and by methylthio groups. These reactions took place first at the 4-position of the ring followed by reactions at other positions as in the reaction with thiol compounds. Paddy soil degraded the fungicide faster than did upland soil. Chlorine substitution reaction at 4-position of the fungicide molecule was also reported in benzene solution under sunlight, and the phenyl-substituted product was identified (9). Similar photolysis was observed in other aromatic hydrocarbon solutions but not in acetone, hexane, and ether solutions.

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with chlorothalonil you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area. Metal containers involving the transfer ofthis chemical should be grounded and bonded. Drums mustbe equipped with self-closing valves, pressure vacuumbungs, and flame arresters. Use only nonsparking tools andequipment, especially when opening and closing containersof this chemical. Sources of ignition, such as smoking andopen flames, are prohibited where this chemical is used,handled, or stored in a manner that could create a potentialfire or explosion hazard. A regulated, marked area shouldbe established where this chemical is handled, used, orstored in compliance with OSHA Standard 1910.1045

Shipping

UN3276 Nitriles, liquid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required, Potential Inhalation Hazard (Special Provision 5). UN2588 Pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Degradation

Chlorothalonil is stable to aqueous hydrolysis at pH values above 7. It is hydrolysed slowly at pH 9 via dechlorination to yield 4-hydroxy-2,5,6- trichloroisothalonitrile (2) and oxidation/hydration of one of the nitrile groups to yield 3-cyano-2,4,5,6-tetrachlorobenzamide (3) (Szalkowski and Stallard, 1977).

Toxicity evaluation

Chlorothalonil’s production and use as a broad-spectrum, nonsystemic, protectant pesticide results in its direct release to the environment. Its uses as a wood protectant, antimold and antimildew agent, bactericide, microbiocide, algaecide, insecticide, and acaricide are additional routes of release. If released to air, chlorothalonil will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase chlorothalonil will be degraded slowly in the atmosphere by reaction with photochemically produced hydroxyl radicals (reaction half-life ～7 years). Direct photolysis may also occur. Chlorothalonil is removed from the atmosphere by wet and dry deposition. If released to soil, chlorothalonil is expected to have lowmobility or be immobile, based on Koc values in the range of 900–7000 measured in four soils. Volatilization from moist or dry soil surfaces is not expected to be important based on a Henry’s Law constant of 2.5×10^-7 atm-cummol^-1. Aerobic biodegradation half-lives of chlorothalonil in four different soils ranged from 10 to 40 days. If released into water, chlorothalonil is expected to adsorb to suspended solids and sediment in the water column.

Incompatibilities

Contact with strong oxidizers may cause a fire and explosion hazard. Thermal decomposition may include fumes of hydrogen cyanide. Nitriles may polymerize in the presence of metals and some metal compounds. They are incompatible with acids; mixing nitriles with strong oxidizing acids can lead to extremely violent reactions. Nitriles are generally incompatible with other oxidizing agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles are hydrolyzed in both aqueous acid and base to give carboxylic acids (or salts of carboxylic acids). These reactions generate heat. Peroxides convert nitriles to amides. Nitriles can react vigorously with reducing agents. Acetonitrile and propionitrile are soluble in water, but nitriles higher than propionitrile have low aqueous solubility. They are also insoluble in aqueous acids.

Waste Disposal

Incineration in a unit operating @ 850C equipped with off-gas scrubbing equipment.

Chlorothalonil Preparation Products And Raw materials

Raw materials

Bifenthrin 1,3-Dicyanobenzene Chlorine m-Xylene Carbon dioxide Hydrochloric acid Benzonitrile Activated carbon Ammonia

Preparation Products

2,4,5-Trifluorobenzoic acid

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Chlorothalonil Suppliers

Argentina 1 Australia 1 Belgium 1 Canada 2 China 287 Europe 2 France 2 Germany 6 India 14 Japan 7 Jordan 1 Malaysia 1 Mexico 1 Singapore 1 South Korea 3 Spain 1 Switzerland 1 The Netherlands 1 United Kingdom 7 United States 30 Global 370

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Tel: 027-59599241 18871490274
Fax: 027-59599241
Email: 1400878000@qq.com
Country: China
ProdList: 9972
Advantage: 58

Chizhou Kailong Import and Export Trade Co., Ltd.

Tel
Fax: -
Email: xg01_gj@163.com
Country: China
ProdList: 9503
Advantage: 50

Alta Scientific Co., Ltd.

Tel: 022-6537-8550 15522853686
Fax: 022-2532-9655
Email: sales@altasci.com.cn
Country: China
ProdList: 4515
Advantage: 55

Codow Chemical Co.,Ltd.

Tel: 18620099427 18620099427
Fax: +86-20-62619665
Email: amy@howeipharm.com
Country: China
ProdList: 1751
Advantage: 55

Shanghai Xilong Biochemical Technology Co., Ltd.

Tel: 021-52907766-8042
Fax: 021-52906523
Country: China
ProdList: 9947
Advantage: 58

Shanghai Pengsuo Biochemical Technology Co., Ltd.

Tel: 021-59118555 13701823997
Fax: 021-59119222
Email: pengsuochem@163.com
Country: China
ProdList: 3302
Advantage: 55

Shandong Xiya Chemical Co., Ltd.

Tel: 4009903999 13395398332
Fax: 0539-6365991
Email: sales@xiyashiji.com
Country: China
ProdList: 20810
Advantage: 60

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View Lastest Price from Chlorothalonil manufacturers

airuikechemical co., ltd.

Product: Chlorothalonil 1897-45-6
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 99.9%
Supply Ability: 20 tons
Release date: 2024-04-03

qingdao trust agri chemical co.,ltd

Product: Chlorothalonil 1897-45-6
Price: US $2.00/Kg/Drum
Min. Order: 1KG
Purity: 99%
Supply Ability: 20KL per month
Release date: 2021-09-29

Hebei Mojin Biotechnology Co., Ltd

Product: Chlorothalonil 1897-45-6
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-10-16

1897-45-6, ChlorothalonilRelated Search:

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