[dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate

C32H66O5Sn2

CAS56533-00-7
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
56533-00-7
EC Number
419-430-9
UN Number
3267
Index Number
607-467-00-5
PubChem CID
16684070

Physical-chemical properties

Molecular Formula
C32H66O5Sn2
Molar Mass
768.30 g/mol
IUPAC Name
[dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate

Chemical Identifiers

InChI
InChI=1S/2C8H16O2.4C4H9.O.2Sn/c2*1-2-3-4-5-6-7-8(9)10;4*1-3-4-2;;;/h2*2-7H2,1H3,(H,9,10);4*1,3-4H2,2H3;;;/q;;;;;;;2*+1/p-2
InChI Key
JODHNYNOXHOLEN-UHFFFAOYSA-L

Overview

[dibutyl-[dibutyl(dibutyl(octanoyloxy)stannyl)oxystannyl] octanoate (CAS 56533-00-7) is an organotin compound featuring dual tin centers with octanoate functionalization for industrial catalytic applications. This complex organotin compound represents a sophisticated ditin oxide derivative where two tin atoms are bridged through oxygen linkages, each coordinated with dibutyl groups and octanoate esters. The molecular structure (C32H66O5Sn2) creates a unique bimetallic system that exhibits distinctive catalytic properties compared to simpler organotin compounds. With a molecular weight of 768.3 g/mol, this substance demonstrates the structural complexity typical of advanced organotin chemistry, where the dual tin centers provide enhanced reactivity profiles. The compound presents significant safety considerations, classified under multiple hazard categories including acute toxicity (Acute Tox. 4), specific target organ toxicity (STOT RE 2), and severe skin corrosion (Skin Corr. 1B). Its environmental impact is substantial, requiring careful handling due to acute and chronic aquatic toxicity classifications. The ADR Class 8 designation reflects its corrosive nature, necessitating specialized storage and transport protocols. Unlike simpler organophosphonium compounds such as tributyl(tetradecyl)phosphanium tetrafluoroborate, this organotin derivative requires enhanced safety measures due to tin-specific toxicological profiles. Primary industrial applications include specialized catalysis in polymerization reactions, particularly in polyurethane and silicone chemistry where the dual tin centers provide superior catalytic efficiency. The compound also serves in advanced coating formulations and as a crosslinking catalyst in high-performance polymer systems. These applications leverage the unique reactivity of the bimetallic tin structure. OYSI maintains reliable supply chains for this specialized organotin compound, supporting European industrial customers with consistent quality and technical expertise.

Safety & Classification

Danger
Classification:

Acute Tox. 4 *; Acute Tox. 4 *; STOT RE 2 *; Skin Corr. 1B; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H312

Harmful in contact with skin.

H302

Harmful if swallowed.

H373

May cause damage to organs through prolonged or repeated exposure.

H314

Causes severe skin burns and eye damage.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number3267
ADR Class8
Packing GroupII
Tunnel CodeE
Proper Shipping Name1,1,3,3-Tetrabutyl-1,3-dizinnoxydicaprylat
Marine PollutantNo

Frequently Asked Questions

What is dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is an organotin compound with the molecular formula C32H66O5Sn2 and CAS number 56533-00-7. This chemical substance has a molecular weight of 768.3 g/mol and contains two tin atoms in its structure. It is classified as a hazardous substance with multiple danger classifications including acute toxicity, skin corrosion, and environmental hazards, requiring careful handling and specialized safety measures.

What are the physicochemical properties of dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is a complex organotin compound with a molecular weight of 768.3 g/mol and molecular formula C32H66O5Sn2. As an organotin derivative, it typically exists as a liquid or viscous substance at room temperature. The compound contains long alkyl chains which influence its solubility characteristics, making it generally soluble in organic solvents but poorly soluble in water.

What is dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate used for?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is primarily used as a catalyst in industrial polymerization processes, particularly in the production of polyurethane foams and elastomers. The compound serves as an organotin catalyst that accelerates chemical reactions in polymer manufacturing. It may also find applications in specialty chemical synthesis where tin-based catalysts are required for specific reaction pathways in industrial manufacturing processes.

How to handle dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate safely?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate requires strict safety measures due to its corrosive and toxic properties. Personnel must wear chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work should be conducted in well-ventilated areas or under fume extraction systems. Given its Skin Corr. 1B and Acute Tox. 4 classifications, immediate decontamination procedures must be available, and proper training is essential before handling.

How to store dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate correctly?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate must be stored in tightly sealed, corrosion-resistant containers in a cool, dry, well-ventilated area away from incompatible materials. Due to its corrosive nature (ADR Class 8), storage areas should have appropriate spill containment measures and emergency equipment. The substance should be kept away from heat sources, oxidizing agents, and moisture. Storage facilities must comply with local regulations for hazardous chemicals.

What to do in case of contact with dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate?

Immediate decontamination is critical due to the substance's corrosive properties (Skin Corr. 1B). For skin contact, immediately remove contaminated clothing and flush the affected area with copious amounts of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water for at least 15 minutes while keeping eyelids open. If inhaled, move to fresh air immediately. Seek immediate medical attention for all exposure routes and provide the safety data sheet to medical personnel.

How to dispose of dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate appropriately?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate requires specialized hazardous waste disposal due to its environmental toxicity (Aquatic Acute 1, Aquatic Chronic 1) and corrosive nature. The substance must be disposed of through licensed hazardous waste contractors in accordance with local and European waste regulations. Incineration at high temperatures in specialized facilities is typically the preferred method. Empty containers should also be treated as hazardous waste due to potential residual contamination.

How to transport dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is classified as ADR Class 8 (corrosive substances) Packing Group II, requiring specialized transport procedures. The substance must be packaged in UN-approved containers suitable for corrosive liquids and properly labeled with appropriate hazard markings. Transport vehicles must carry emergency equipment and documentation including transport documents and safety data sheets. Only trained personnel familiar with ADR regulations should handle the transportation.

Is dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate subject to specific regulations?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is subject to multiple European regulations including REACH registration requirements and CLP classification obligations. The substance is classified with multiple hazard categories requiring appropriate labeling with GHS pictograms (GHS05, GHS07, GHS08, GHS09) and the signal word 'Danger'. While not currently listed as SVHC, its organotin nature means it may be subject to restrictions under various national and European chemical legislation.

Where to buy dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate in Europe?

Dibutyl-[dibutyl(octanoyloxy)stannyl]oxystannyl] octanoate is available through OYSI, a European distributor of specialty chemicals with expertise in hazardous substances. OYSI provides this organotin compound with full regulatory compliance, proper documentation, and technical support. As a specialized chemical requiring careful handling and regulatory compliance, sourcing through established distributors like OYSI ensures proper packaging, documentation, and adherence to European chemical regulations including REACH requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.