Monobutyl Tin Oxide (MBTO)

Also known as Butylstannonic acid, Butylstannoic acid, Butylhydroxyoxostannane

CAS number
2273-43-0
Molecular formula
C4H10O2Sn
Molecular weight
208.83 g/mol
Catalogue number
OS-18022
Purity
99.9 %
Form
Powder
Packing
50 kg

₹1,000 per kg

Specifications

Identity
CAS number 2273-43-0
Molecular formula C4H10O2Sn
Molecular weight 208.83 g/mol
IUPAC name butyl-hydroxy-oxotin
InChIKey WIHMDCQAEONXND-UHFFFAOYSA-M
SMILES CCCC[Sn](=O)O
MDL number MFCD00013927
PubChem CID 16767
Physical properties
Physical form Powder
Appearance amorphous, white, or off-white powder
Colour White
Quality
Purity 99.9 %
Packaging
Packaging size 50 kg
Commercial
Country of origin India

Description and applications

Monobutyl Tin Oxide (MBTO) is an amorphous white solid used as a neutral catalyst in esterification and transesterification reactions, particularly for producing saturated and unsaturated polyester resins for coatings and plasticizers. It accelerates reaction rates, improves product quality (like color), and is hydrolytically stable, meaning water produced during the reaction does not deactivate it. MBTO is also used as an additive in certain plastics and as a precursor in other chemical processes.

Applications

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