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Merck
CN

183083

Dibutyltin(IV) oxide

98%

Synonym(s):

Dibutyloxotin

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About This Item

Linear Formula:
(CH3CH2CH2CH2)2SnO
CAS Number:
818-08-6
Molecular Weight:
248.94
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
24851031
EC Number:
212-449-1
Beilstein/REAXYS Number:
4126243
MDL number:
MFCD00001992

Key Documents

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Product Name

Dibutyltin(IV) oxide, 98%

InChI key

JGFBRKRYDCGYKD-UHFFFAOYSA-N

InChI

1S/2C4H9.O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3;;

SMILES string

CCCC[Sn](=O)CCCC

assay

98%

autoignition temp.

534 °F

mp

≥300 °C (lit.)

Quality Level

100

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General description

Dibutyltin(IV) oxide is an organotin compound that is commonly used as a Lewis acid catalyst in organic synthesis. For instance, it can be used for the formation of carbon-carbon bonds through coupling reactions and in the preparation of esters from carboxylic acids and alcohols. It also finds use in allylation reactions, cycloaddition reactions, and ring-opening polymerizations.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Muta. 2 - Repr. 1B - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 1 - STOT SE 1

target_organs

thymus

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCV5615
0000050340
0000098341
0000087482
0000039556

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Shao-Min Wang et al.
Carbohydrate research, 346(2), 203-209 (2010-12-28)
The reaction process for the selective deprotection of acetylated glucosides by dibutyltin oxide in methanol is investigated by using methyl 2,3,4,6-tetra-O-acetyl-α-d-glucopyranoside as a model substrate with ESIMS and NMR techniques. According to the results, it is inferred that at first
Synthesis of the alpha-Neu5Ac-(2----6)-Gal structure. Facile 6-O-sialylation following stannylene activation of an unprotected D-galactopyranoside.
T Murase et al.
Carbohydrate research, 195(1), 134-137 (1989-12-21)
[Experimental toxicity of indium formate and a mixture of indium formate-dibutyltin oxide (90-10) in the rat].
J P Anger et al.
Journal de toxicologie clinique et experimentale, 8(6), 401-418 (1988-11-01)
Qinghui Wang et al.
Carbohydrate research, 342(17), 2657-2663 (2007-09-26)
Regioselective formation of 6-O-acylsucroses and 6,3'-di-O-acylsucroses in one pot with good yields was achieved for the first time by a typical acylation method of sucrose via its dibutylstannylene acetal. Pure monoesters at OH-6 and diesters at OH-6,3' obtained by these
K Kiyoshima et al.
Chemical & pharmaceutical bulletin, 37(4), 861-865 (1989-04-01)
4''-O-Acyl-, 4''-O-alkyl- and 4''-deoxy-tylosin derivatives were synthesized using 2'-O-acetyl-3'',4''-O-(dibutyl-stannio)tylosin as a synthetic intermediate. The in vitro biological evaluation showed that the new derivatives were active against macrolide-resistant clinical isolates of bacteria and mycoplasmas, and that they were resistant to hepatic
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