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Chemical Name: CAPSO sodium salt
CAS No.: 102601-34-3
Molecular Fomula: C9H20NNaO4S
Molecular weight: 261.31
Appearance: White crystalline powder

Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

CAPSO Sodium Salt CAS 102601-34-3: Comprehensive User Guide

Table of Contents

1. Product Overview and Specifications

CAPSO Sodium Salt (CAS 102601-34-3) is a zwitterionic biological buffer widely used in biochemical and molecular biology research. Key parameters include:

Parameter CAPSO Sodium Salt HEPES Tris Buffer
Effective pH Range 8.9–10.3 6.8–8.2 7.0–9.0
Molecular Weight 259.26 g/mol 238.30 g/mol 121.14 g/mol
Solubility (25°C) ＞100 mg/mL ＞500 mg/mL ～550 mg/mL

2. Key Applications of CAPSO Sodium Salt

2.1 Biochemical Research

Ideal for enzyme kinetics studies requiring alkaline pH stability (e.g., alkaline phosphatase assays).

2.2 Diagnostic Reagents

Used in blood gas analyzers and immunodiagnostic kits to maintain pH in protein-based solutions.

3. Usage Guidelines and Best Practices

Recommended Concentration: 10–50 mM in aqueous solutions
Temperature Sensitivity: Stable between 4°C–25°C; avoid freeze-thaw cycles
Compatibility: Works with most cations but precipitates in high Ca²⁺/Mg²⁺ concentrations

4. Case Studies: Real-World Applications

4.1 Protein Crystallography

University of Cambridge researchers achieved 1.8Å resolution in lysozyme crystallization using 20 mM CAPSO buffer at pH 9.6.

5. Customer Success Stories

5.1 BioPharma Solutions Inc.

Challenge: Needed pH-stable buffer for monoclonal antibody purification at scale
Solution: Implemented 40 mM CAPSO in affinity chromatography
Result: 92% target protein recovery vs. 78% with previous Tris-HCl protocol

5.2 GeneTech Diagnostics

Improved ELISA test shelf life from 6 to 9 months by replacing carbonate buffer with CAPSO in conjugate stabilization.

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Drug impurities to intermediates. Years of expertise.

Experience in the synthesis of complex compounds derived from American technology
Focus on the synthesis of difficult compounds
ISO 17034 dual system certification
National high-tech enterprise
5000+ square meters R&D center
A 70+ R&D team led by Chinese and foreign doctors
150 pieces (sets) of R&D equipment, 120+ fume hoods
18 patents

Solid QMS. Offer top-quality products and services.

Through more than ten years of continuous technological innovation and experience accumulation, the team's R&D personnel have established a complete quality management system for CATO, and have successively obtained ISO9001, ISO17034, CNAS and other international certifications.
It has successfully passed on-site inspections from the United States, Australia, Poland, Japan and domestic pharmaceutical company customers and institutions many times, providing high-quality one-stop services for R&D and production of new drugs around the world.

More than 150 sets of equipment to ensure quality.

The emphasis on quality is the basis for our survival and development, and is the most basic requirement for the products and services we provide. CATO has established a scientific, strict and comprehensive quality prevention and assurance system in accordance with international quality standards. Through advanced testing equipment such as GC-MS, chromatograph, nuclear magnetic resonance, scanning electron microscope, and ultraviolet light, quality management is implemented into every aspect of production and operation activities such as raw materials, inventory, production, testing, sales, verification, and training, and "All actions are controlled and traceable" as the work code of conduct for CATO employees.

Over 1000 cases. Synthesize complex compounds.

Currently, CATO serves more than 500 pharmaceutical companies, biotechnology and other companies around the world. Project types cover the entire cycle from pre-clinical to commercialization stages. As of 2020, CATO has delivered more than 1,000 projects in total.
The company has core technologies in key core technology fields such as high-end fluorine chemistry, asymmetric chiral synthesis, glycoside and biological enzyme technology, and continuous microreactors.

About the company

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FAQ

Does it support auditing?

Support, please make an appointment one day in advance. Company address: Room 716, Building 3, Ligao International Garden, No.1222 West Aoti Road, Lixia District, Jinan City, Shandong Province, P.R. China

Whether to provide samples?

Free samples can be provided for low value products, and small packaging specifications can be purchased for high value products.

Delivery time

Under normal circumstances, all items are in stock and will be shipped before 4 o'clock on the same day. Some products are produced to order, depending on the workshop situation and production schedule.

What is the production capacity?

At present, the company's workshop production equipment is mainly based on laboratories and pilot lines, with a maximum daily production capacity of 1.5 tons.

Can additional test indicators be added?

We can provide moisture, UV, IR, HNMR, CNMR, two-dimensional nuclear magnetic spectroscopy, optical rotation detection, elemental analysis, TGA analysis and residue analysis and other related tests to support personalized needs.

Technical direction

In the early stage, our company mainly engaged in drug impurity synthesis and standard product production, with core technologies in chirality, fluorine chemistry, and heterocycles.

Why Chem-iso’s delivery rate is guaranteed to be 99.99%

5000+

square meter R&D center

150+

China(set) of R&D equipment

150+

Fume hood

180+

R&D team

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