Description

Monooctyltinoxide is an organotin compound with the CAS registry number 63257-13-6, serving as a key intermediate in the synthesis of more complex organotin stabilizers and catalysts. This compound is valued for its role in imparting heat stability and light resistance to various polymer matrices. It is primarily sought by manufacturers in the plastics, coatings, and chemical synthesis industries for producing PVC stabilizers and polyurethane catalysts.

Application

• PVC Stabilizer Intermediate: A crucial precursor in the manufacture of mixed-metal and estertin-based heat stabilizers for rigid and flexible PVC applications.
• Polyurethane Catalyst Synthesis: Used as a building block for producing tin-based catalysts that drive the reaction between polyols and isocyanates.
• Silicone Cross-linking Agent: Acts as a catalyst or co-catalyst in the curing of silicone rubbers and resins.
• Esterification & Transesterification Catalyst: Facilitates organic synthesis reactions in the production of plasticizers, lubricants, and biodiesel.
• Antifouling Agent Precursor: An intermediate in the synthesis of tributyltin (TBT) alternatives for marine coatings.
• Glass Coating Additive: Imparts durability and specific optical properties to thin-film coatings on glass.

Basic Information

Product Name	Monooctyltinoxide
CAS No.	63257-13-6
Molecular Formula	C8H18OSn
Molecular Weight	248.93 g/mol
Synonyms	Octylstannonic Acid; Monooctyloxotin; Octyltin Oxide; Stannane, Octyloxo-; (Octyloxy)stannane; OTTO; Mono-n-octyltin Oxide; Tin, Octyloxo-
EINECS	Contact for details

Quality Control

Our Monooctyltinoxide is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including titration, gas chromatography (GC), and infrared spectroscopy (IR). A Certificate of Analysis (COA) detailing purity, tin content, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids, strong bases, and oxidizing agents. The container must be kept tightly sealed due to the compound's sensitivity to moisture (hygroscopic).

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to reference spectrum
Assay (Tin Content)	≥ 47.0 %
Purity (GC)	≥ 98.0 %
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.