Description

N,n-Bis(2-Hydroxyethyl)-2-Aminoethanesulfonic Acid Sodium Salt is a high-purity biochemical buffer salt, essential for maintaining stable pH conditions in sensitive biological and chemical systems. Its primary value lies in its excellent buffering capacity in the physiological pH range and its compatibility with biological molecules. This product is critically needed by manufacturers and researchers in the pharmaceutical, biotechnology, and diagnostic reagent industries for applications requiring precise and non-interfering pH control.

Application

• Pharmaceutical Buffer: Used in the formulation of injectables, ophthalmic solutions, and cell culture media where consistent pH is vital for stability and efficacy.
• Biochemical Research: Serves as a key component in electrophoresis buffers, enzyme reaction mixtures, and protein purification protocols.
• Diagnostic Reagents: Employed in the production of clinical diagnostic kits and assays to ensure accurate and reproducible test results.
• Cell Culture & Fermentation: Provides a stable ionic environment for mammalian and bacterial cell growth in bioreactors and culture dishes.
• Molecular Biology: Utilized in PCR, DNA sequencing, and other nucleic acid analysis techniques to optimize reaction conditions.
• Cosmetic Formulations: Acts as a pH stabilizer and conditioning agent in high-end skincare and personal care products.

Basic Information

Product Name	N,n-Bis(2-Hydroxyethyl)-2-Aminoethanesulfonic Acid Sodium Salt
CAS No.	66992-27-6
Molecular Formula	C6H14NNaO6S
Molecular Weight	251.23 g/mol
Synonyms	BES Sodium Salt; N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt; 2-[Bis(2-hydroxyethyl)amino]ethanesulfonic acid sodium salt; BES-Na; BES Sodium; BES Na Salt; BES buffer sodium salt; (2-Hydroxyethyl)(2-sulfoethyl)amine N,N-diethanol sodium salt
EINECS	Contact for details

Quality Control

Our N,n-Bis(2-Hydroxyethyl)-2-Aminoethanesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for life science applications. Certificates of Analysis (COA) with full traceability are available upon request, and production can be aligned with cGMP guidelines for pharmaceutical use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and weight.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
pH (1% Solution)	6.5 - 7.5
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Endotoxin (where applicable)	< 0.25 EU/mg

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