See All ProductsTriphenyltin Hydroxide




For early and late blight on potatoes, leaf spot on sugar beets, peanuts, scab, and several other diseases on pecans. Fungus diseases on rice, beans, garlic, onion, pepper, tomato.


Dispersion, flowable suspension, wettable powder.


Common Names

Fentin Hydroxide (BSI, ISO-E, ISO-F, pa ISO); Fentine Hydroxide (ISO-F, pa ISO); Triphenyltin Hydroxide (USA, So. Africa)

CAS Code


Other Code Numbers

ENT 28009; OMS 1017 (WHO); SHA 083601



Triphenyltin (IV) hydroxide (IUPAC)


Stable at room temperature but dehydration may occur at >230° C. Tech white crystalline solid. Melting range 121°-123°C. Moderately soluble in most organic solvents.

Mode of Action / Resistance Management

Chemical Group

triphyenyltin compounds

Mode of Action


Action Group

FRAC Code 30

Target Site

C6: inhibitor of oxidative phosphorylation, ATP synthase

Risk Note

Low to medium risk

Environmental Guidelines

Water Solubility

Practically insoluble, 2.22 mg/l at 20°C (pH 7.8)

Safety Guidelines

Signal Word


Toxicity Class



(Rat): Oral LD50 156 mg/kg. Dermal LD50 1600 mg/kg. Severe eye irritant, moderate skin irritant on repeated application

Handling/Storage Caution

Keep tightly closed and dry in original container. Store in cool, well-ventilated place (0°-30°C, maximum 50°C). Do not store with food or animal feed

Protective Clothing

Chemical-resistant gloves. Approved respirator. Protective eyewear.

Emergency Guidelines


Approx. 174°C

First Aid

Get immediate medical aid. Eyes: hold open and flush with water for 15-20 minutes until no evidence of chemical remains. Skin: remove contaminated clothing and shoes, flush with water for 15-20 minutes, wash with soap and water. Ingestion: never give fluids or induce vomiting if person is unconscious or having convulsions. Application of a corticosteroid cream has been effective in treating severe skin irritation. If blisters develop, may require abrasion to promote healing