Sorbitan tristearate
- CAS Number
- 26658-19-5
- HSN Code
- 29159090
- Molecular Formula
- C60H114O8
- Catalogue Number
- AL1439A
- Purity
- ≥ 95%
- Molecular Weight
- 963.55 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Span 65, also known as sorbitan tristearate, is a nonionic surfactant characterized by its three stearate groups. This compound is notable for its low hydrophilic-lipophilic balance (HLB), making it particularly effective in applications requiring stable water-in-oil emulsions. With a molecular weight of 963.55 g/mol, Span 65 is widely utilized in the cosmetic and pharmaceutical industries for its emulsifying properties. Its ability to stabilize emulsions at low concentrations makes it a valuable ingredient in formulations where a smooth texture and consistent performance are essential.
Also known as Span 65, Sorbitan tristearate.
- Catalogue No.
- AL1439A
- CAS Number
- 26658-19-5
- Molecular Formula
- C60H114O8
- Molecular Weight
- 963.55 g/mol
- HSN Code
- 29159090
- Grade
- Standard grade
- Product Form
- Substance
Span 65 appears as a pale yellow to tan waxy solid. It has a density of approximately 1.096 g/mL, indicating a relatively high mass per unit volume typical of fatty acid esters. The compound is insoluble in water but soluble in organic solvents, which is characteristic of many nonionic surfactants. The melting point of Span 65 is around 50-60 °C, which allows it to remain solid at room temperature while being easily melted for incorporation into formulations. Its stability and performance in various pH conditions further enhance its utility in diverse applications.
- Appearance
- Pale yellow to tan waxy solid
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, dry place away from direct sunlight.
1.1 — Product identifier
- Chemical Name
- Sorbitan tristearate
- Catalogue No.
- AL1439A
- Product form
- Substance
- CAS Number
- 26658-19-5
- EC Number
- Not specified
- Grade
- Standard grade
- EC Index Number
- Not specified
- Chemical Formula
- C60H114O8
- HSN Code
- 29159090
- Synonyms
- Span 65, Sorbitan tristearate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Emulsifier in cosmetic and pharmaceutical formulations
- 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
- Sorbitan tristearate
- CAS No.
- 26658-19-5
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 and eyes.
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
- Combustible material; may produce toxic fumes when burned.
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 inert absorbent material. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Clean up spills immediately, using appropriate protective equipment.
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
- Not required under normal conditions of use.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- Pale yellow to tan
- Odour
- Fatty
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 50-60 °C
- Freezing point
- Not specified
- Boiling point
- Not applicable
- Flash point
- Not specified
- Auto-ignition temperature
- Not specified
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.096 g/mL
- Solubility
- Insoluble in water, soluble in organic solvents
- Log Pow
- Not specified
- Viscosity, kinematic
- Not specified
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions of use and storage.
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 adverse effects expected with proper handling.
- 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
Span 65 is primarily used as a low-HLB emulsifier in specialized formulations, particularly in the cosmetic and pharmaceutical industries. It is commonly employed in the development of water-in-oil emulsions, which are crucial for products such as creams, lotions, and ointments that require a stable and smooth texture. Additionally, Span 65 is utilized in food applications as an emulsifier and stabilizer, enhancing the consistency and shelf-life of various products. Its role in drug delivery systems is also significant, as it aids in the formulation of lipophilic drugs, improving their bioavailability and stability.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1439A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 963.55 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay Purity | ≥ 95% | 96.5% |
| Melting Point | 50-60 °C | 55 °C |
| Moisture Content | ≤ 1% | 0.5% |
| Residue on Ignition | ≤ 0.5% | 0.3% |
| Related Substances | None detected | None detected |
The above product is expected to comply with Standard grade grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| Standard grade | ≥ 95% | 50-60 °C | ≤ 1% | ≤ 0.5% | None detected | Insoluble in water, soluble in organic solvents |
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