Tripentyl(tripentylstannyloxy)stannane

C30H66OSn2

tripentyl(tripentylstannyloxy)stannane

CAS25637-27-8
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
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Identification

CAS Number
25637-27-8
EC Number
247-143-7
UN Number
3077
Index Number
050-009-00-9
PubChem CID
16684179

Physical-chemical properties

Molecular Formula
C30H66OSn2
Molar Mass
680.30 g/mol
IUPAC Name
tripentyl(tripentylstannyloxy)stannane

Chemical Identifiers

InChI
InChI=1S/6C5H11.O.2Sn/c6*1-3-5-4-2;;;/h6*1,3-5H2,2H3;;;
InChI Key
MNFUDUQONWPBMD-UHFFFAOYSA-N

Overview

Tripentyl(tripentylstannyloxy)stannane (CAS 25637-27-8) is an organotin compound with significant industrial applications and notable toxicity properties. This diorganotin oxide derivative represents a specialized chemical intermediate within the broader family of organotin compounds. With a molecular formula of C30H66OSn2 and molecular weight of 680.3 g/mol, this substance features two tin centers connected through an oxygen bridge, each bearing three pentyl substituents. The compound's structure places it among the more complex organotin derivatives, sharing certain characteristics with related compounds such as tetracyclohexylstannane and fluoro(trihexyl)stannane, though differing significantly in its bridged architecture and specific alkyl substitution pattern. From a safety perspective, tripentyl(tripentylstannyloxy)stannane carries multiple acute toxicity classifications (Acute Tox. 4) across different exposure routes, reflecting the inherent toxicity associated with organotin compounds. The substance also presents significant environmental concerns, classified as both Aquatic Acute 1 and Aquatic Chronic 1, indicating severe hazards to aquatic life with long-lasting effects. Transportation falls under ADR Class 9 (miscellaneous dangerous goods), requiring appropriate handling protocols and documentation. Industrial applications typically center around its use as a catalyst in polymerization reactions, particularly in the production of polyurethane foams and elastomers. The compound also finds application as a stabilizer in PVC processing and as an intermediate in the synthesis of other organotin derivatives for specialized chemical manufacturing processes. OYSI maintains reliable supply chains for tripentyl(tripentylstannyloxy)stannane, ensuring consistent availability for industrial customers across European markets with full regulatory compliance and technical support.

Safety & Classification

Warning
Classification:

Acute Tox. 4 *; Acute Tox. 4 *; Acute Tox. 4 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H332

Harmful if inhaled.

H312

Harmful in contact with skin.

H302

Harmful if swallowed.

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

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

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:

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 Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameHexapentyldistannoxan
Marine PollutantNo

Frequently Asked Questions

What is tripentyl(tripentylstannyloxy)stannane?

Tripentyl(tripentylstannyloxy)stannane is an organotin compound with the molecular formula C30H66OSn2 and CAS number 25637-27-8. This chemical features two tin atoms connected through an oxygen bridge, with each tin center bonded to three pentyl groups. With a molecular weight of 680.3 g/mol, it belongs to the class of diorganotin compounds and exhibits moderate toxicity with environmental hazard properties.

What are the physicochemical properties of tripentyl(tripentylstannyloxy)stannane?

Tripentyl(tripentylstannyloxy)stannane is typically a viscous liquid or waxy solid at room temperature due to its high molecular weight of 680.3 g/mol. As an organotin compound with long alkyl chains, it exhibits low water solubility but good solubility in organic solvents. The compound's physical state and properties are influenced by the bulky pentyl substituents around the tin-oxygen-tin core structure.

What is tripentyl(tripentylstannyloxy)stannane used for?

Tripentyl(tripentylstannyloxy)stannane is primarily used as a catalyst in various organic synthesis reactions, particularly in polymerization processes and transesterification reactions. It serves as an effective tin-based catalyst in the production of polyurethanes, silicones, and other specialty polymers. The compound may also find applications in research and development for organotin chemistry studies and as an intermediate in specialized chemical manufacturing processes.

How to handle tripentyl(tripentylstannyloxy)stannane safely?

Tripentyl(tripentylstannyloxy)stannane requires careful handling due to its Acute Tox. 4 classification across multiple exposure routes. Use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation to prevent inhalation exposure. Avoid skin and eye contact, and prevent ingestion. Work in well-ventilated areas or under fume hoods, and wash hands thoroughly after handling.

How to store tripentyl(tripentylstannyloxy)stannane correctly?

Tripentyl(tripentylstannyloxy)stannane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers upright and properly labeled according to GHS requirements with Warning signal word and appropriate pictograms (GHS07, GHS09). Store away from oxidizing agents and ensure secondary containment to prevent environmental release due to its aquatic toxicity classification.

What to do in case of contact with tripentyl(tripentylstannyloxy)stannane?

In case of skin contact with tripentyl(tripentylstannyloxy)stannane, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician if symptoms develop.

How to dispose of tripentyl(tripentylstannyloxy)stannane properly?

Tripentyl(tripentylstannyloxy)stannane must be disposed of as hazardous waste in accordance with local, national, and EU regulations due to its toxicity and environmental hazard classification. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Do not discharge into sewers, waterways, or soil due to its Aquatic Acute 1 and Aquatic Chronic 1 classifications. Contaminated packaging should also be treated as hazardous waste.

How to transport tripentyl(tripentylstannyloxy)stannane?

Tripentyl(tripentylstannyloxy)stannane is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation. This classification requires appropriate packaging, labeling, and documentation according to dangerous goods regulations. Use UN-approved packaging and ensure proper hazard communication during transport. The relatively lower risk Packing Group III classification allows for standard dangerous goods transport procedures with appropriate safety measures and trained personnel.

Is tripentyl(tripentylstannyloxy)stannane subject to specific regulations?

Tripentyl(tripentylstannyloxy)stannane is subject to standard EU chemical regulations including REACH and CLP requirements for classification, labeling, and safety data sheet provision. While not currently listed as a Substance of Very High Concern (SVHC), it must be handled according to its hazard classification (Acute Tox. 4, Aquatic hazards). Users must comply with occupational safety regulations and environmental protection measures due to its toxicity profile.

Where to buy tripentyl(tripentylstannyloxy)stannane in Europe?

Tripentyl(tripentylstannyloxy)stannane is available through OYSI, a specialized European distributor of technical chemicals and organotin compounds. OYSI provides this compound with full regulatory compliance, proper packaging, and comprehensive safety documentation including safety data sheets. As a professional chemical distributor, OYSI ensures quality standards and regulatory compliance for industrial and research applications across European markets.

Data Sources

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