Glyceryl Stearate, CAS#123-94-4
Appearance: It is a white or off-white waxy solid, bead or flake form, with faint characteristic fatty odor.
Solubility: Insoluble in water; dispersible in hot water, soluble in hot ethanol, chloroform and vegetable oils.
Stability & pH Performance: The pH of aqueous dispersion is 5.0–7.0. It is stable under normal storage conditions, and susceptible to hydrolysis under strong acid or strong alkaline high-temperature environment.
Basic Function Features: It is a nonionic emulsifier synthesized by esterification of glycerol and stearic acid. It has good emulsifying, thickening, lubricating and moisturizing properties, and can form stable emulsion systems with other surfactants.
Glyceryl stearate, characterized by the molecular formula C₂₁H₄₂O₄, presents as white to off-white waxy flakes or beads. It cannot dissolve in cold water, but can disperse when heated in water and dissolve readily in hot oils and hot alcohols. It is a lipophilic nonionic emulsifier, often used together with co-emulsifiers to stabilize oil-in-water or water-in-oil emulsions. The substance has good skin affinity, mild and non-irritating, widely used as emulsifier and emollient in cosmetic formulations.
| Chemical Properties | Parameter |
|---|---|
| CAS No. | 123-94-4 |
| Molecular Formula | C₂₁H₄₂O₄ |
| Molecular Weight | 358.56 g/mol |
| Melting Point | 56–58 ℃ |
| Density | 0.97 g/cm³ |
| Appearance | White to off-white waxy flakes / beads |
| Odor | Faint fatty odor |
| pH (aqueous dispersion) | 5.0–7.0 |
| Solubility | Insoluble in cold water, dispersible in hot water; soluble in hot ethanol, chloroform, hot oils |
| Acid Value | ≤ 3 mg KOH/g |
| Saponification Value | 160–175 mg KOH/g |
| Iodine Value | ≤ 3 g I₂/100g |
| Storage Temp | Store below 30 ℃, sealed, away from light |
| Stability | Stable under neutral conditions; incompatible with strong acids and strong bases |
| InChIKey | VBZJSUFSAMJGHN-UHFFFAOYSA-N |
| NIST Chemistry Reference | Glyceryl stearate (123-94-4) |
| EPA Substance Registry System | Octadecanoic acid, monoester with 1,2,3-propanetriol |
表格
| Safety Information | Details |
|---|---|
| GHS Classification | Not classified as hazardous |
| Hazard Statements | Not applicable |
| Precautionary Statements | P264, P280 |
| Risk Statements | None |
| Safety Statements | S24/25 |
| WGK Germany | 1 |
| RTECS | Not available |
| Grade | Cosmetic Grade / Food Grade |
| TSCA | Yes |
| HS Code | 29157090 |
| Hazard Description | Low irritation, low acute toxicity, safe for skin external use within recommended dosage |
| Handling Advice | Avoid dust inhalation; wear gloves and goggles during melting operation to prevent hot material scalding |
| Storage Requirement | Keep tightly sealed, cool and dry, protected from sunlight; keep away from strong acids and strong oxidants |
This compound is widely used in face cream, body lotion, hand cream, moisturizing milk, hair conditioner, sunscreen and makeup base formulations. It helps form stable emulsion, thickens the system, improves product texture and provides soft, non-greasy skin feel. It can reduce moisture loss of the skin and enhance the moisturizing effect. In food industry, it serves as food emulsifier and anti-staling agent for baked goods. It is one of the most classic and widely used emulsifiers in cosmetic formulation due to its stable emulsifying capacity and excellent mildness.
