MES, 1.0M buffer soln., pH 8.0, Thermo Scientific™

Product Code	Brand	Quantity
15404149	Thermo Scientific Alfa Aesar J61556.AK	250 mL
15414149	Thermo Scientific Alfa Aesar J61556.AP	500 mL

Description

This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific.

Applications
MES, is often used as a running buffer for resolving very small proteins on bis-tris gels, also used as a biological buffer in plant cell cultures. It is also been used in various protein characterization assays. This sterile solution suitable for cell culture and molecular biology applications. It is also used as a buffering agent in biology and biochemistry.

Solubility
Soluble in water (0.5 M at 20°C).

Notes
Solutions are stable at 2-8°C for months. Sterilize by filtration through 0.2 mm filters. Autoclaving is not recommended for any sulfonic acid buffer. If buffers must be nuclease-free, treat the water first, then add the buffer after autoclaving. When MES solutions are autoclaved, they turn yellow (although pH does not change measurably). The identity of the yellow breakdown product is unknown.

Chemical Identifiers

• CAS: 145224-94-8
• Molecular Weight (g/mol): 213.248
• InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N
• IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate

• Molecular Formula: C6H15NO5S
• MDL Number: MFCD00283848
• PubChem CID: 16218417
• SMILES: C1COCCN1CCS(=O)(=O)O.O

Specifications

• CAS: 145224-94-8
• Concentration: 1.0 M
• Physical Form: Liquid
• MDL Number: MFCD00283848
• InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N
• IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate
• PubChem CID: 16218417

• Color: Colorless
• pH: 8.0
• Molecular Formula: C6H15NO5S
• Solubility Information: Soluble in water (0.5 M at 20°C).
• SMILES: C1COCCN1CCS(=O)(=O)O.O
• Molecular Weight (g/mol): 213.248
• Chemical Name or Material: MES buffer soln.

Safety and Handling

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.

P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c

H315-H319-H335

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures