Sodium 3-sulfobenzoate CAS 17625-03-5

Chemical Name: Sodium 3-sulfobenzoate
CAS No.:17625-03-5
Molecular weight: 224.17
Appearance: White crystal powder

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Comprehensive Guide to Sodium 3-sulfobenzoate (CAS 17625-03-5)

Table of Contents

1. Product Overview & Specifications

Parameter Specification
CAS Number 17625-03-5
Molecular Formula C7H5NaO5S
Appearance White crystalline powder
Solubility ≥500 g/L in water (20°C)
pH Range 6.5-8.0 (1% aqueous solution)

2. Key Applications & Industrial Uses

Widely used as:

  • Pharmaceutical intermediate for API synthesis
  • Dye manufacturing modifier
  • Polymerization catalyst in specialty plastics
  • Corrosion inhibitor in industrial fluids
  • Buffering agent in electroplating solutions

3. Performance Comparison with Alternatives

Property Sodium 3-sulfobenzoate Sodium 4-sulfobenzoate Potassium sulfobenzoate
Thermal Stability Up to 250°C 230°C 210°C
Aqueous Solubility ★★★★☆ ★★★☆☆ ★★☆☆☆
Reactivity Moderate High Low

4. Usage Scenarios & Best Practices

Pharmaceutical Synthesis Example:
Used as key intermediate in production of non-steroidal anti-inflammatory drugs (NSAIDs). Typical dosage: 0.5-1.2 molar equivalents in coupling reactions.

Dye Manufacturing Protocol:
Add 2-3% w/w during diazotization process to improve color fastness. Maintain reaction temperature below 40°C for optimal results.

5. Client Case Studies

Case 1: European API Manufacturer
Challenge: Needed stable sulfonation agent for continuous production
Solution: Implemented our high-purity grade (99.8%) with automated dosing system
Result: 18% yield improvement with 22% reduction in side products

Case 2: Asian Dye Producer
Challenge: Inconsistent color intensity in textile dyes
Solution: Optimized 3-sulfobenzoate concentration at 2.75% w/w
Result: Achieved ΔE < 0.5 color consistency across batches

6. Request Customized Solutions

Contact our technical team for:

  • Custom particle size distributions
  • GMP-grade manufacturing
  • Bulk pricing quotations

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