ChemicalBook >> CAS DataBase List >>ETRIDIAZOLE


Chemical Name:
ETMT;KOLAN;Dwell;Koban;TRUBAN;om2424;Banrot;Etcmtb;MF-344;SUPER X
Molecular Formula:
Molecular Weight:
MDL Number:
MOL File:
Last updated:2023-05-25 18:00:55


Melting point 19.9°C
Boiling point 254.65°C (rough estimate)
Density 1.503
vapor pressure 1.43 Pa (25 °C)
refractive index 1.5650 (estimate)
Flash point 154.5 °C
storage temp. 0-6°C
solubility DMSO (Sparingly), Methanol (Slightly)
form Liquid
pka 2.77 (very weak base)
Water Solubility 117 mg l-1(25 °C)
color Colourless
LogP 3.370
CAS DataBase Reference 2593-15-9
EWG's Food Scores 4
FDA UNII 9F8237I875
Proposition 65 List Terrazole
EPA Substance Registry System Etridiazole (2593-15-9)


Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
Signal word  Warning
Hazard statements  H302-H317-H351-H410
Precautionary statements  P201-P273-P280-P301+P312-P302+P352-P308+P313
Hazard Codes  T,N
Risk Statements  21/22-23-40-50/53-20/21/22
Safety Statements  36/37-38-45-60-61
RIDADR  UN2810 6.1/PG 2
WGK Germany  3
RTECS  XI3875000
HS Code  2934999090
Toxicity LD50 oral in rabbit: 779mg/kg

ETRIDIAZOLE price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich CRM01342 Etridiazole certified reference material, TraceCERT? 2593-15-9 50MG $146 2024-03-01 Buy
Sigma-Aldrich 34340 Etridiazole PESTANAL?, analytical standard 2593-15-9 100mg $112 2024-03-01 Buy
TRC E890670 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole 2593-15-9 50mg $140 2021-12-16 Buy
TRC E890670 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole 2593-15-9 100mg $250 2021-12-16 Buy
American Custom Chemicals Corporation AGR0000508 5-ETHOXY-3-(TRICHLOROMETHYL)-1,2,4-THIADIAZOLE 95.00% 2593-15-9 100MG $155.4 2021-12-16 Buy
Product number Packaging Price Buy
CRM01342 50MG $146 Buy
34340 100mg $112 Buy
E890670 50mg $140 Buy
E890670 100mg $250 Buy
AGR0000508 100MG $155.4 Buy

ETRIDIAZOLE Chemical Properties,Uses,Production


Etridiazole (20) was first described in 1969 and is a contact fungicide for control of soilborne diseases caused by Pythium and Phytophthora. Formulated as a WP (Terrazole), etridiazole may be used in a preventive program for control of Pythium blight in turf and of damping-off in ornamentals. It is also formulated in mixture with pentachloronitrobenzene (quintozene) as Terraclor Super X, which is applied in-furrow to cotton for control of seedling diseases (Rhizoctonia, Pythium, Fusarium). Application rates in cotton are equivalent to 1 to 1.5 and 0.26 to 0.39 kg ai ha?1 for PCNB and etridiazole, respectively.

Chemical Properties

Pale-yellow liquid when pure or reddish-brown liquid or semisolid as a technical product. Mild odor.


Etridiazole is a contact fungicide with protective and curative action that is used to control Phytophthora and Pythium spp. in ornamentals, cotton, peanuts, vegetables and turf.


5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole is a fungicide that can be incorporated into the soil or compost to control Phytophthora spp. and Pythium spp. Useful in cannabis testing kits as a component of pesticide mixes (P698235).


ChEBI: A member of the class of thiadiazoles that is 1,2,4-thiadiazole which is substituted at positions 3 and 5 by trichloromethyl and ethoxy groups, respectively. A fungicide, it has been used particularly for the control of Phytophthora and <ital Pythium species in soils.

Agricultural Uses

Fungicide: Etridiazole is a fungicide used in some countries as a seed treatment on barley, beans, corn, cotton, peanuts, peas, sorghum, soybeans, safflower, and wheat. It is also used on cotton for in-furrow application at planting, on ornamental plants and shrubs by horticultural nurseries, on non-bearing citrus and non-bearing coffee, and for golf course fairways, tees and greens. Some states hold Special Local Need registrations for use on tobacco transplants.

Trade name

AATERRA®; BANROT® (With Thiophanate-methyl); DWELL®[C]; ETHAZOLE®; 4-WAY®; KOBAN®; MF-344®; OLIN MATHIESON® 2,424; OM® 2424; PANSOIL®; TERRACHLOR-SUPER X® (with Pentachloronitrobenzene); TERRACLOR SUPER X® (with Pentachloronitrobenzene); TERRACOAT®; TERRAFLO®; TERRAMASTER®; TRUBAN®

Potential Exposure

Aromatic hydrocarbon; Thiazole fungicide Etridiazole is a fungicide used in some countries as a seed treatment on barley, beans, corn, cotton, peanuts, peas, sorghum, soybeans, safflower, and wheat. It is also used on cotton for in-furrow application at planting, on ornamental plants and shrubs by horticultural nurseries, on nonbearing citrus and nonbearing coffee, and for golf course fairways, tees and greens. Some states hold Special Local Need registrations for use on tobacco transplants

Metabolic pathway

The main metabolic pathways of etridiazole in mammals are dechlorination of the 3-trichloromethyl moiety followed by oxidation yielding the carboxylic acid derivative or glutathione-mediated dechlorination. Catabolism of the glutathione conjugate via the mercapturic acid pathway affords the cysteine conjugate that is in turn N-acetylated to give the mercapturic acid.


UN2810 Toxic liquids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. Military driver shall be given full and complete information regarding shipment and conditions in case of emergency. AR 50-6 deals specifically with the shipment of chemical agents. Shipments of agent will be escorted in accordance with AR 740-32.


The DT50 for hydrolysis of etridiazole is 103 days (25 °C, pH 6). The compound was hardly decomposed at 20 °C by sunlight over 7 days (PM). The rate of hydrolysis of etridiazole increased with pH and temperature and the only product was 3-carboxy-5-ethoxy-1,2,4-thiadiazole (2) (EPA, 1980).

Toxicity evaluation

Etridiazole has low acute toxicity toward mammals (rat: oral LD50 1,100 mg/kg; rabbit: dermal LD50 > 5,000 mg/kg; rat: inhalation LC50 (4 h) 5.7 mg/L), and birds (mallard duck: LC50 1,650 mg/kg; bobwhite quail: LC50 > 5,000 mg/kg). It is also nonteratogenic. However, chronic administration to rats was associated with an increased incidence of thyroid follicular cell tumors, and etridiazole (Terrazole) is included by the EPA in its list of Group B2 carcinogens.
The only noteworthy ecotoxicological effect concerns the aquatic toxicity of the combination product, Terraclor Super X, which is highly toxic towards both fish and Daphnia. However, this can be attributed more to the PCNB component (bluegill sunfish: LC50 0.1 mg/L, EPA designation “highly toxic”) than to etridiazole (LC50 3.27 mg/L, “moderately toxic”). Risk in practice would be mitigated by the use pattern of the product involving in-furrow soil application.


Diazo compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. This chemical is sensitive to prolonged exposure to heat. This chemical is incompatible with strong oxidizing agents

Waste Disposal

Incineration would be an effective disposal procedure where permitted. If an efficient incinerator is not available, the product should be mixed with large amounts of combustible material and contact with the smoke should be avoided. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers

ETRIDIAZOLE Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 91)Suppliers
Supplier Tel Email Country ProdList Advantage
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714 China 9341 55
Hubei Jusheng Technology Co.,Ltd.
18871490254 CHINA 28180 58
+8618523575427 China 49391 58
Hebei Mojin Biotechnology Co., Ltd
+8613288715578 China 12471 58
TargetMol Chemicals Inc.
+1-781-999-5354 +1-00000000000 United States 19892 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671 China 34572 58
Shaanxi Didu New Materials Co. Ltd
+86-89586680 +86-13289823923 China 9020 58
Hebei Guanlang Biotechnology Co., Ltd.
+86-19930503259 +86-19930503259 China 18451 58
+86-0576225566889 +86-13454675544;; China 19949 58
Aladdin Scientific
+1-833-552-7181 United States 57511 58

View Lastest Price from ETRIDIAZOLE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
etridiazole pictures 2023-01-31 etridiazole
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
  • etridiazole pictures
  • etridiazole
  • US $0.00 / KG
  • 99%
  • Hebei Mojin Biotechnology Co., Ltd
5-ethoxy-3-trichloromethyl-1,2,4-thiadiazole etridiazole 5-Ethoxy-3-trichloromethyl-1,2,4-thiadiazole, Ethazol Etridiazole,5-Ethoxy-3-trichloromethyl-1,2,4-thiadiazole, Ethazol Terrazole (TM) 250mg [2593-15-9] Etridiazole 0 Etridiazol/Etridiazole Etridiazole Standard SUPER X TERRAZOLE TERRAZOLE (TM) OM 2424(R) TRUBAN KOLAN ETRIDAZOLE ETRIDIAZOL ETRIDIAZOLE ETHAZOL ECHLOMEZOL 5-ETHOXY-3-TRICHLOROMETHYL-1,2,4-THIADIAZOLE 3-(Trichloromethyl)-5-ethoxy-1,2,4-thiadiazole 4-thiadiazole,5-ethoxy-3-(trichloromethyl)-2 5-Aethoxy-3-trichlormethyl-1,2,4-thiadiazol om2424 Pansoil planvate Terrachlor-super X terrachlor-superx Terracoat Terracoat L21 terracoatl21 Terraflo ETRIDIAZOLE (ETHAZOL), 250MG, NEAT TERRAZOLE, 1GM, NEAT 1,2,4-Thiadiazole, 5-ethoxy-3-(trichloromethyl)- etridazole (bsi,iso) 1,2,4-THIADIAZOLE,5-ETHOXY-3-(TRICHLORMETHYL)- ECHLOMEZOL STANDARD 5-aethoxy-3-trichlormethyl-1,2,4-thiadiazol[german] 5-Ethoxy-3-trichloromethyl-1,2,4-thiadiazol Aaterra Aaterra WP Banrot Dwell Echlomezole Etcmtb Ethazole (fungicide) ethazole(fungicide) ethazole[fungicide] Ethyl 3-(trichloromethyl)-1,2,4-thiadiazol-5-yl ether ETMT Koban MF-344 Olin Mathieson 2,424 olinmathieson2,424 OM 2424 OM 2425 Etridizole Etridiazole (Terrazole)@1000 μg/mL in Acetone