Triphenyltin hydroxide

CAS: 76-87-9

Overview

Triphenyltin hydroxide (CAS 76-87-9 ), commercially known as fentin hydroxide, is an organotin biocide used in agricultural crop protection. It acts as a fungicide and algaecide, controlling fungal pathogens and algae in targeted field applications.

Fentin hydroxide is registered for use against late blight and Cercospora leaf spot in potato and sugar beet crops. It is formulated into wettable powder or suspension concentrate sprays to ensure effective coverage and disease management.

It also controls algae in rice paddy cultivation, applied directly to flooded fields to suppress aquatic weed competition. In specialty crop programs, it has been used as a tank-mix partner with other fungicides to broaden disease control spectrums.

Industrial antifouling formulations have historically incorporated organotin compounds of this class to prevent biofouling on marine surfaces. This application helps maintain the integrity of submerged structures and vessel hulls over time.

Triphenyltin hydroxide is supplied as a technical-grade solid, typically as a white to off-white powder or crystalline material. It is available in formulated end-use products such as wettable powders and suspension concentrates for agricultural use.

Technical-grade material is sourced for formulation manufacturing, with purity specifications varying by supplier and regional registration requirements. Our supply chain ensures consistent quality for industrial and agricultural applications globally.

Physical Properties

Melting Point	119 °C
Boiling Point	428.5±28.0 °C(Predicted)
Density	1.54 g/cm³ @ Temp: 20 °C
Color	Off-white
Form	Powder
Water Solubility	<0.1 g/100 mL at 21 ºC

Safety & Handling

Danger GHS05 GHS06 GHS08 GHS09 GHS07 Hazard Statements H301 Toxic if swallowed [Danger Acute toxicity, oral] H311 Toxic in contact with skin [Danger Acute toxicity, dermal] H315 Causes skin irritation [Warning Skin corrosion/irritation] H318 Causes serious eye damage [Danger Serious eye damage/eye irritation] H330 Fatal if inhaled [Danger Acute toxicity, inhalation] H335 May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] H351 Suspected of causing cancer [Warning Carcinogenicity] H400 Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard] H410 Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] H310 Fatal in contact with skin [Danger Acute toxicity, dermal] H319 Causes serious eye irritation [Warning Serious eye damage/eye irritation] H361 Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity] H370 Causes damage to organs [Danger Specific target organ toxicity, single exposure] H372 Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

Trade & Regulatory

HS Code	29319090
UN Number	3146
ADR Class	6.1
Packing Group	II
Storage Class	6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)	3

Other Names

Industries

Agriculture & Feed