Sudan III
- CAS Number
- 85-86-9
- HSN Code
- 32049000
- Molecular Formula
- C22H16N4O
- Catalogue Number
- AL01479
- Purity
- Min. 85%
- Molecular Weight
- 352.39 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sudan III is a lipid-soluble azo dye, classified under the category of synthetic dyes. It is primarily utilized in histology for staining neutral fats and lipids, making it an essential tool in biological and medical laboratories. With a minimum dye content of 85%, Sudan III is recognized by its C.I. No. 26100, indicating its identity and purity level. This compound is notable for its ability to provide clear contrast in tissue samples, aiding in the visualization of lipid structures under a microscope.
Also known as C.I. 26100, Sudan Red 3.
- Catalogue No.
- AL01479
- CAS Number
- 85-86-9
- Molecular Formula
- C22H16N4O
- Molecular Weight
- 352.39 g/mol
- HSN Code
- 32049000
- Grade
- M.S.
- Product Form
- Substance
Sudan III appears as a dark red-brown powder, characterized by its insolubility in water, which is typical for many lipid-soluble dyes. The melting point of Sudan III is approximately 190-195 °C, and it has a boiling point of around 500 °C. The density of Sudan III is about 1.2 g/cm³. It has a strong absorption in the visible spectrum, particularly around 520 nm, which is useful for its application in staining. The dye is stable under normal conditions but should be stored away from strong oxidizing agents.
- Appearance
- Dark red-brown powder
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, dry place, away from light.
1.1 — Product identifier
- Chemical Name
- Sudan III
- Catalogue No.
- AL01479
- Product form
- Substance
- CAS Number
- 85-86-9
- EC Number
- 201-634-5
- Grade
- M.S.
- EC Index Number
- Not specified
- Chemical Formula
- C22H16N4O
- HSN Code
- 32049000
- Synonyms
- C.I. 26100, Sudan Red 3
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a lipid stain in histology and biological research.
- 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
- May cause skin and eye irritation; handle with care.
3.1 — Substance
- Name
- Sudan III
- CAS No.
- 85-86-9
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
- Irritation of 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
- May emit toxic fumes when burned; use appropriate fire-fighting measures.
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 protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate absorbent materials and dispose of in accordance with local regulations.
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 personal protective equipment as required.
- 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 in a well-ventilated area; respiratory protection is not typically required under normal use conditions.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Dark red-brown
- Odour
- Odourless
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- 190-195 °C
- Freezing point
- Not applicable
- Boiling point
- 500 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not flammable under normal conditions
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.2 g/cm³
- Solubility
- Insoluble in water; soluble in organic solvents such as ethanol and acetone.
- Log Pow
- Not specified
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; avoid strong oxidizing agents.
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; LD50 (oral, rat) > 2000 mg/kg.
- Skin corrosion/irritation
- May cause skin irritation.
- Serious eye damage/irritation
- May cause eye irritation.
- Respiratory or skin sensitisation
- Not 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
Sudan III is widely used in histological applications, particularly for staining neutral fats and lipids in frozen tissue sections. It is commonly employed in the fields of pathology and histology to visualize fat deposits in tissues, aiding in the diagnosis of various diseases. Additionally, Sudan III is utilized in food industry applications for the detection of fats and oils, as well as in the study of lipid metabolism in biological research. Its ability to selectively stain lipids makes it a valuable tool in both educational and professional laboratory settings.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01479
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 352.39 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Dark red powder | Dark red powder |
| Dye content | (Min.) 85.0% | 85.21% |
| Absorption maximum | 508 - 521nm | 508 nm |
The above product complies with LR Grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| M.S. | Min. 85% | 190-195 °C | Not specified | Not specified | Not specified | Insoluble in water, soluble in organic solvents. |
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