sodium 4-amino-1-naphthalenesulfonate cas 130-13-2

Chemical Name: Sodium 4-amino-1-naphthalenesulfonate / Sodium Naphthionate
Cas No: 130-13-2
Molecular Formula: C10H8NNaO3S
Molecular weight: 245.23
Appearance: Grayish-white crystal
Assay: 74% 75%

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Technical Guide: Sodium 4-Amino-1-Naphthalenesulfonate (CAS 130-13-2)

1. Product Overview & Specifications

Parameter Value
Chemical Name Sodium 4-Amino-1-Naphthalenesulfonate
CAS Number 130-13-2
Molecular Formula C10H8NNaO3S
Molecular Weight 245.23 g/mol
Synonyms 4-Amino-1-naphthalenesulfonic acid sodium salt, 1-Naphthylamine-4-sulfonic acid sodium salt

2. Key Applications

Dye Manufacturing

Primary component in production of:

  • Acid Red A/B, Acid Scarlet 3R
  • Direct Red G/4B, Direct Bordeaux GB/B
  • Food-grade colorants (Carmine, Amaranth Red)

Chemical Intermediate

  • Synthesis precursor for 1,4-naphthalenesulfonic acid
  • Building block for specialty surfactants

Pharmaceutical Applications

  • Antidote for sulfite and iodine poisoning

3. Industrial Use Cases

Textile Industry

Used in dye baths for wool and silk with:

  • pH stability between 4-6
  • Optimal concentration: 0.5-2% w/w

Food Additive Production

  • Certified for FD&C Red formulations
  • Max residual limit: 0.1% in final product

4. Customer Success Stories

Case 1: European Dye Manufacturer

  • Challenge: Achieve colorfastness in polyamide fibers
  • Solution: 1.2% additive in dye formulation
  • Result: 30% improvement in wash-fastness rating

Case 2: Asian Pharmaceutical Company

  • Challenge: Develop antidote with >95% purity
  • Solution: Recrystallization process optimization
  • Result: 98.7% purity achieved (USP Grade)

5. Contact for Technical Support

For technical specifications, SDS, or custom formulations:

Email info@vivalr.com
Phone (86) 15866781826
Response Time 24hrs for technical queries

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