Sodium Naphthionate

98% For Laboratory Use
CAS Number
130-13-2
HSN Code
29214516
Molecular Formula
C10H8NNaO3S
Catalogue Number
AL1399B
Purity
≥ 98%
Molecular Weight
245.23 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance White to off-white crystalline powder
Shelf Life -
Packaging -
Storage Store in a cool, dry place away from incompatible materials.

Sodium naphthionate is a soluble aromatic sulfonate salt that serves as a crucial synthetic intermediate in azo-dye chemistry. This compound is characterized by its high purity of 98%, making it suitable for various industrial applications, particularly in the dye manufacturing sector. Its molecular structure, featuring a naphthalene ring with a sulfonate group, contributes to its reactivity and utility in chemical synthesis. Sodium naphthionate is recognized for its role in producing vibrant azo dyes, which are widely used in textiles, inks, and other coloring applications.

Also known as Naphthionic acid sodium salt.

Catalogue No.
AL1399B
CAS Number
130-13-2
Molecular Formula
C10H8NNaO3S
Molecular Weight
245.23 g/mol
HSN Code
29214516
Grade
98%
Product Form
Substance

Sodium naphthionate appears as a white to off-white crystalline powder. It is highly soluble in water, which facilitates its use in various aqueous chemical processes. The compound has a melting point of approximately 200 °C, indicating its thermal stability under standard conditions. Its density is around 1.2 g/cm³, and it exhibits a pH value in solution of approximately 7, making it neutral. The compound does not have a distinct odor, which is advantageous for handling in laboratory and industrial settings.

Appearance
White to off-white crystalline powder
Shelf Life
-
Packaging
-
Storage
Store in a cool, dry place away from incompatible materials.

1.1 — Product identifier

Chemical Name
Sodium Naphthionate
Catalogue No.
AL1399B
Product form
Substance
CAS Number
130-13-2
EC Number
204-872-0
Grade
98%
EC Index Number
Not specified
Chemical Formula
C10H8NNaO3S
HSN Code
29214516
Synonyms
Naphthionic acid sodium salt

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Used as a synthetic intermediate in azo-dye chemistry.
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.3 — Other hazards

Other hazards
None identified.

3.1 — Substance

Name
Sodium Naphthionate
CAS No.
130-13-2

4.1 — Description of first aid measures

First-aid measures after inhalation
Move to fresh air. If symptoms persist, seek medical attention.
First-aid measures after skin contact
Wash with soap and water. If irritation occurs, seek medical attention.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
First-aid measures after ingestion
Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
May cause mild irritation to skin, eyes, and respiratory tract.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
No special hazards identified; use standard fire-fighting procedures.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Contain spill and collect using appropriate methods. Dispose of in accordance with local regulations.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Use appropriate protective equipment. Sweep up and place in a suitable container for disposal.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Avoid contact with skin and eyes. Use in a well-ventilated area.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Store in a cool, dry place, away from incompatible materials.

8.2 — Exposure controls

Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection if dust is generated.

9.1 — Information on basic physical and chemical properties

Physical state
Solid
Colour
White to off-white
Odour
Odorless
Odour threshold
Not applicable
pH value
7 (in solution)
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
200 °C
Freezing point
Not applicable
Boiling point
Not applicable
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not specified
Flammability (solid, gas)
Not flammable
Vapour pressure
Not applicable
Relative vapour density at 20°C
Not applicable
Density
1.2 g/cm³
Solubility
Soluble in water
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Stable under normal conditions.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
No dangerous reactions known under normal conditions of use.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Strong oxidizing agents.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Not specified

11.1 — Information on toxicological effects

Acute toxicity
Low toxicity; no significant acute effects expected.
Skin corrosion/irritation
May cause mild irritation.
Serious eye damage/irritation
May cause mild irritation.
Respiratory or skin sensitisation
Not expected to be a sensitizer.
Germ cell mutagenicity
Not classified
Carcinogenicity
Not classified
Specific target organ toxicity (single exposure)
Not classified as a specific target organ toxicant.
Specific target organ toxicity (repeated exposure)
Not classified

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
Not assigned
UN-No. (IMDG)
Not assigned
UN-No. (IATA)
Not assigned
UN-No. (ADN)
Not assigned
UN-No. (RID)
Not assigned

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Not classified as dangerous goods
Proper Shipping Name (IMDG)
Not classified as dangerous goods
Proper Shipping Name (IATA)
Not classified as dangerous goods
Proper Shipping Name (ADN)
Not classified as dangerous goods
Proper Shipping Name (RID)
Not classified as dangerous goods

14.3 — Transport hazard class(es)

Transport hazard class(es)
Not applicable

14.4 — Packing group

Packing group (ADR)
Not applicable
Packing group (IMDG)
Not applicable
Packing group (IATA)
Not applicable
Packing group (ADN)
Not applicable
Packing group (RID)
Not applicable

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations
Not specified

Sodium naphthionate is primarily utilized as a diazo-component intermediate in the synthesis of azo dyes, which are extensively used in the textile industry for dyeing fabrics. Additionally, it finds applications in the production of pigments and inks, contributing to the vibrant colors in printing and packaging materials. Beyond dye chemistry, sodium naphthionate is also explored in research settings for its potential use in organic synthesis and as a reagent in various chemical reactions. Its versatility makes it a valuable compound in both industrial and academic laboratories.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL1399B
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
245.23 g/mol
Test Standard Observed
Assay ≥ 98% 98.5%
Moisture Content ≤ 1% 0.5%
Residue on Ignition ≤ 0.5% 0.3%
Related Substances None detected None detected
Solubility Soluble in water Fully soluble

The above product is expected to comply with 98% grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
98% ≥ 98% 200 °C ≤ 1% ≤ 0.5% None detected Soluble in water
View full Technical Data Sheet

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