ContaminantDB: Dibutyltin oxide

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References Targets (12)XML

Record Information

Version

1.0

Creation Date

2009-06-19 21:58:31 UTC

Update Date

2026-04-04 19:03:51 UTC

Accession Number

CHEM001080

Identification

Common Name

Dibutyltin oxide

Class

Small Molecule

Description

Dibutyltin oxide is an organotin compound. It is used mainly in organic synthesis. Tin is a chemical element with the symbol Sn and atomic number 50. It is a natural component of the earth's crust and is obtained chiefly from the mineral cassiterite, where it occurs as tin dioxide. (3, 5, 6)

Contaminant Sources

HPV EPA Chemicals
OECD HPV Chemicals
STOFF IDENT Compounds
T3DB toxins

Contaminant Type

Industrial/Workplace Toxin
Organic Compound
Organometallic
Synthetic Compound
Tin Compound

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Not Available

Chemical Formula

C₈H₂₀OSn

Average Molecular Mass

250.957 g/mol

Monoisotopic Mass

252.054 g/mol

CAS Registry Number

818-08-6

IUPAC Name

dibutyltin oxide

Traditional Name

dibutyltin oxide

SMILES

O.[Sn].[CH2]CCC.[CH2]CCC

InChI Identifier

InChI=1S/2C4H9.H2O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3;1H2;

InChI Key

ZJZNROHPJQCEMV-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as organotin compounds. Organotin compounds are compounds containing bond between a carbon atom and a tin atom.

Kingdom

Organic compounds

Super Class

Organometallic compounds

Class

Organo-post-transition metal compounds

Sub Class

Organotin compounds

Direct Parent

Organotin compounds

Alternative Parents

Substituents

Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organic salt
Organotin compound
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

Not Available

Biological Properties

Status

Detected and Not Quantified

Origin

Exogenous

Cellular Locations

Cytoplasm
Extracellular

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Solid

Appearance

White powder.

Experimental Properties

Property	Value
Melting Point	300°C (decomp. 210°C)
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	0.71 g/L	ALOGPS
logP	2.81	ALOGPS
logP	2.11	ChemAxon
logS	-1.9	ALOGPS
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	0	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	0 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	19.11 m³·mol⁻¹	ChemAxon
Polarizability	7.99 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0a4i-0090000000-4c5a6dc85a83a3ac107d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0a4i-0090000000-4c5a6dc85a83a3ac107d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0a4i-0090000000-4c5a6dc85a83a3ac107d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-0a4i-0090000000-59a7fcfd2ccb79b6b191	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0a4i-0090000000-59a7fcfd2ccb79b6b191	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0a4i-0090000000-59a7fcfd2ccb79b6b191	Spectrum

Toxicity Profile

Route of Exposure

Oral (4) ; inhalation (4) ; dermal (4)

Mechanism of Toxicity

Organotin compounds produce neurotoxic and immunotoxic effects. Organotins may directly activate glial cells contributing to neuronal cell degeneration by local release of pro-inflammatory cytokines, tumor necrosis factor-_, and/or interleukins. They may also induce apoptosis by direct action on neuronal cells. Organotin compounds stimulate the neuronal release of and/or decrease of neuronal cell uptake of neurotransmitters in brain tissue, including aspartate, GABA, glutamate, norepinephrine, and serotonin. This may be either a contributing factor to or result of the neuronal cell loss. The immunotoxic effects of organotins are characterized by thymic atrophy caused by the suppression of proliferation of immature thymocytes and apoptosis of mature thymocytes. Organotin compounds are believed to exert these effects by suppressing DNA and protein synthesis, inducing the expression of genes involved in apoptosis (such as nur77), and disrupting the regulation of intracellular calcium levels, giving rise to the uncontrolled production of reactive oxygen species, release of cytochrome c to the cytosol, and the proteolytic and nucleolytic cascade of apoptosis. The suppression of proliferation of immature thymocytes further results in the suppression of T-cell-mediated immune responses. Organotins are also endocrine disruptors and are believed to contribute to obesity by inappropriate receptor activation, leading to adipocyte differentiation. Inorganic tin triggers eryptosis, contributing to tin-induced anemia. (4, 1, 2)

Metabolism

Though tin metal is very poorly absorbed, tin compounds may be absorbed via oral, inhalation, or dermal routes, with organotin compounds being much more readily absorbed than inorganic tin compounds. Tin may enter the bloodstream and bind to hemoglobin, where it is distributed and accumulates mainly in the kidney, liver, lung, and bone. Organotin compounds may undergo dealkylation, hydroxylation, dearylation, and oxidation catalyzed by cytochrome P-450 enzymes in the liver. The alkyl products of dealkylation are conjugated with glutathione and further metabolized to mercapturic acid derivatives. Tin and its metabolites are excreted mainly in the urine and feces. (4)

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

No indication of carcinogenicity to humans (not listed by IARC).

Uses/Sources

Dibutyltin oxide is used mainly in organic synthesis. (6)

Minimum Risk Level

Not Available

Health Effects

Breathing or swallowing, or skin contact with organotins, can interfere with the way the brain and nervous system work, causing death in severe cases. Organic tin compounds may also damage the immune and reproductive system. (3, 4)

Symptoms

Inorganic or organic tin compounds placed on the skin or in the eyes can produce skin and eye irritation. (4)

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

Not Available

FooDB ID

Not Available

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

Not Available

BioCyc ID

Not Available

METLIN ID

Not Available

PDB ID

Not Available

Wikipedia Link

Not Available

Chemspider ID

Not Available

ChEBI ID

Not Available

PubChem Compound ID

85775175

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

Not Available

References

Synthesis Reference

Not Available

MSDS

Not Available

General References

Not Available

Dibutyltin oxide (CHEM001080)

Structure for CHEM001080: Dibutyltin oxide