Description

Butyltin Oxide CAS NO 2273-43-0 is an organotin compound primarily used as a versatile intermediate and catalyst in industrial synthesis. Its value lies in its ability to facilitate key reactions, particularly in the production of polyurethane foams and as a precursor for other organotin stabilizers. This chemical is essential for manufacturers in the polymer, plastics, and specialty chemical industries seeking efficient process catalysts and synthesis building blocks.

Application

• Polyurethane Catalyst: A key catalyst in the production of flexible and rigid polyurethane foams.
• PVC Stabilizer Precursor: Serves as a critical intermediate in the synthesis of various organotin-based heat stabilizers for PVC.
• Esterification & Transesterification Catalyst: Used to catalyze reactions for producing plasticizers, lubricants, and biodiesel.
• Silicone Cross-Linking Agent: Functions as a catalyst in the curing of silicone rubbers and resins.
• Glass Coating & Surface Treatment: Employed in the deposition of tin oxide coatings on glass for enhanced properties.
• Homogeneous Catalyst: Facilitates various organic synthesis reactions in specialty chemical manufacturing.

Basic Information

Product Name	Butyltin Oxide
CAS No.	2273-43-0
Molecular Formula	C8H18OSn
Molecular Weight	248.93 g/mol
Synonyms	Dibutyltin Oxide; Dibutyloxotin; DBTO; Dibutylstannylene Oxide; Stannane, Dibutyloxo-; Tin, Dibutyloxo-; Butyltin Oxide (Dibutyl); CAS 2273-43-0
EINECS	218-903-5

Quality Control

Our Butyltin Oxide is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, with product specifications aligned with industry requirements for catalyst and intermediate applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is supplied with each shipment to guarantee compliance with your technical specifications.

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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as DBTO)	≥ 98.0 %
Tin (Sn) Content	Contact for details
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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