Isobutyl methanesulfonate

Name: Isobutyl methanesulfonate
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CAS No. 16156-53-9
Cat. No. CS-0182150
Purity≥98%
MDL No.MFCD07363982

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 16156-53-9

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Description

Isobutyl methanesulfonate serves as a robust alkylating agent in synthetic organic chemistry, offering high reactivity with nucleophiles under mild conditions. The molecule features a sterically hindered isobutyl group paired with a stable methanesulfonate leaving group, enabling selective transformations. This combination ensures efficient coupling reactions with minimal side products, making it well-suited for applications in pharmaceutical intermediates and complex molecule synthesis.

Application

Isobutyl methanesulfonate serves as a reliable alkylating agent in synthetic organic chemistry, enabling efficient SN2 reactions with nucleophiles under mild conditions. Its bench-stable nature and low hydrolytic sensitivity facilitate straightforward handling and purification. The methanesulfonyl group provides excellent leaving group capability, making it particularly useful for constructing C–C and C–heteroatom bonds in complex molecule synthesis, including intermediates for pharmaceutical scaffolds and functionalized building blocks.

General Information

CAS No. 16156-53-9
Cat. No. CS-0182150
Purity ≥98%
MDL No. MFCD07363982
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₁₂O₃S
Molecular Weight 152.21
Synonym(s) Methanesulfonic Acid Isobutyl Ester
SMILES O=S(OCC(C)C)(C)=O

Computational Chemistry Data

TPSA 43.37
LogP 0.6186
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 3

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P264-P280-P302+P352-P362

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Other Classifications

Building Blocks Skeleton Fatty chain compounds

General Reagents Alkylating Reagents

Chemical Synthesis Synthetic Reagents C-X(Non-Halogen) Bond Formation Alkylation (Esterification)

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Isobutyl methanesulfonate

CAS No. 16156-53-9

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