Description

3-[Bis(2-Hydroxyethyl)Amino]Propanesulphonic Acid is a high-purity zwitterionic biological buffer essential for maintaining stable pH conditions in sensitive biochemical and diagnostic systems. Its excellent water solubility and minimal interference with biological processes make it a critical component for research and manufacturing where precise environmental control is paramount. This product is primarily needed by manufacturers in the life sciences, pharmaceutical, and in-vitro diagnostic industries for applications requiring reliable and consistent buffering performance.

Application

• Primary buffer component in cell culture media and fermentation processes.
• Critical reagent in the formulation of in-vitro diagnostic (IVD) kits and clinical assay buffers.
• pH stabilization agent for enzyme reactions, protein purification, and electrophoresis.
• Essential ingredient in pharmaceutical intermediates and biopharmaceutical production.
• Used in molecular biology applications including PCR, sequencing, and nucleic acid hybridization.
• Buffer for cosmetic and personal care formulations requiring mild and stable pH control.

Basic Information

Product Name	3-[Bis(2-Hydroxyethyl)Amino]Propanesulphonic Acid
CAS No.	58431-91-7
Molecular Formula	C7H17NO6S
Molecular Weight	243.28 g/mol
Synonyms	DIPSO; 3-[Bis(2-hydroxyethyl)amino]-1-propanesulfonic acid; 2-[Bis(2-hydroxyethyl)amino]ethanesulfonic acid (common misnomer); N,N-Bis(2-hydroxyethyl)-3-amino-1-propanesulfonic acid; DIPSO Buffer; Good's Buffer DIPSO; (2-Hydroxyethyl)iminobis(2,1-ethanediyloxy-2,1-ethanediyl) sulfonic acid
EINECS	261-277-6

Quality Control

Our 3-[Bis(2-Hydroxyethyl)Amino]Propanesulphonic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for sensitive life science applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
pH (1% Solution)	7.2 - 7.6
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
UV Absorbance (260 nm)	≤ 0.05

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