Dithianon

Synonyms

1,4-Dithiaanthraquinone-2,3-dicarbonitrile; 1,4-Dithiaanthraquinone-2,3-dinitrile; 2,3-Dicarbonitrilo-1,4-diathiaanthrachinon [German]; 2,3-Dicyano-1,4-dithia-anthraquinone; 2,3-Dinitrilo-1,4-dithia-9,10-anthraquinone; 2,3-Dinitrilo-1,4-dithia-anthraquinone; 2,3-Dinitrilo-1,4-dithioanthrachinon; 2,3-Dinitrilo-1,4-dithioanthrachinon [German]; 5,10-Dihydro-5,10-dioxonaphtho(2,3-b)-p-dithiin-2,3-dicarbonitrile; Delan; Delan (fungicide); Delan WP; Delan-col; Dithianone; IT 931; MV 119A; Merkdelan; Naphtho(2,3-b)-1,4-dithiin-2,3-dicarbonitrile, 5,10-dihydro-5,10-dioxo-; Naphtho(2,3-b)-p-dithiin-2,3-dicarbonitrile, 5,10-dihydro-5,10-dioxo-; Stauffer MV-119A; Thynon; [ChemIDplus]

Category

Fungicides

Description

Brown odorless solid; [Merck Index]

Sources/Uses

No active pesticide product registrations in the US; [NPRIS] Used as fungicide and seed dressing for fruits, vegetables, coffee, and other crops; [HSDB] Used in Japan, Australia, New Zealand, South Africa, the EU, and South America as broad spectrum fungicide for pome fruit and hops; [Reference #1] Used as a preventative contact fungicide for pome, stone, and citrus fruits, grapes, nut trees, vegetables, cereals, and other crops; [EFSA]

Comments

Allergic contact dermatitis reported in farmworkers; [Kanerva, p. 1792] Eye irritation and effects to skin, including erythema, swelling, and itching, reported in employees of manufacturing plant, with erythema, swelling, itching, blistering, and peeling of the skin reported in spray operators; Patch testing has shown that skin sensitization may occur; Causes liver and kidney injury in animal studies; [EFSA] May cause irritation; Harmful by ingestion and inhalation; [Aldrich MSDS]

Reference Link #1

Biomedical References

2.03E-11 mm Hg

LC50 (rat) = 3,000 mg/m3/4hr

Explanatory Notes

VP from HSDB;

Yes

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)