Basic Informations of Lauroyl Glutamic Acid
- Product Name: Lauroyl Glutamic Acid
- English Aliases: N-Lauroyl-L-glutamic acid, Lauroyl glutamic acid, LG
- Industry Abbreviation: LG, Lauroyl Glutamic Acid
- Other Language Names: German: Laurylglutaminsäure; French: Acide lauroylglutamique; Japanese: ラウロイルグルタミン酸
- CAS Number: 3397-65-7
- EINECS Number: 222-261-1
- Molecular Formula: C17H31NO5
- Molecular Weight: 329.43 g/mol
- Product Grade: Cosmetic Grade (Mainstream), Pharmaceutical Grade (High Purity), Industrial Grade (Basic Cleaning)
- Main Uses: Surfactant (cleaning, foaming), emulsion stabilizer, skin feel modifier, moisturizer. Primarily used in gentle cleansing products, especially suitable for sensitive skin and special populations.
Physicochemical Properties of Lauroyl Glutamic Acid
- Appearance and Odor: White powder or granules, odorless; liquid state.
- Solubility: Easily soluble in hot water (above 60℃), slightly soluble in cold water; soluble in polar organic solvents such as ethanol and propylene glycol; insoluble in petroleum ether and diethyl ether.
- Boiling Point: No fixed boiling point (gradually decomposes upon heating above 220℃, releasing acidic gases).
- Melting Point: 125-132℃ (pure); Industrial/Cosmetic Grade: 120-135℃ (slight fluctuations due to purity).
- Density: 1.12-1.18 g/cm³ (25℃, solid powder bulk density)
- pH value (1% aqueous solution, 25℃): 2.5-4.0 (acidic; due to the ionization properties of carboxyl groups, pH can be adjusted to neutral after neutralization with alkali)
- Purity (active ingredient content): Cosmetic grade: ≥98.0%; Pharmaceutical grade: ≥99.0%; Industrial grade: ≥95.0%
- Impurity control: Free lauric acid: ≤0.5% (cosmetic grade); Free glutamic acid: ≤0.3% (cosmetic grade); Heavy metals (lead/arsenic/mercury): ≤1ppm (cosmetic grade); Pesticide residues: Not detected
- Stability: Stable in pH range 3.0-8.0; Avoid long-term high-temperature storage (>50℃), otherwise it is prone to clumping; Good compatibility with most cosmetic raw materials (such as moisturizers and preservatives).
Supplementary Technical Details for Lauroyl Glutamic Acid
- Production Method: Lauroyl chloride reacts with glutamic acid in the presence of an alkaline catalyst (such as sodium hydroxide), followed by acidification, crystallization, and purification.
- Acute Toxicity (LD50): Oral LD50 in rats: >3000 mg/kg (actually non-toxic); Skin Irritation Test: Non-irritating (meets cosmetic raw material standards).
- Chronic Toxicity: No irritant accumulation or sensitization with long-term skin contact; meets EU ECOCERT natural organic certification requirements.
- Upstream and Downstream Products (Raw Materials): Upstream: Lauric acid (for preparing lauroyl chloride), L-glutamic acid (food grade/cosmetic grade), sodium hydroxide (catalyst), hydrochloric acid (acidification).
- Downstream and Upstream Products (Acidification): Amino acid facial cleansers, gentle shower gels, baby cleansing products, sensitive skin care products, oral care products, natural organic cosmetics.
- Quality Standards: Cosmetic Grade: Meets INCI standards, EU CosIng catalog, and China IECIC catalog; Food Grade: Meets GB standards. 2760 Food Additive Standard; Pharmaceutical Grade: Complies with USP Pharmaceutical Excipient Standard
- Testing Methods: Purity: High Performance Liquid Chromatography (HPLC); Moisture: Karl Fischer method (≤0.5%); Ash: Residue on Ignition method (≤0.1%); Microorganisms: Plate count method (Cosmetic Grade: Total ≤100 CFU/g)
- Transportation Method: General chemical raw material transportation (non-dangerous goods), supports sea, air, and land transportation (road/rail). Avoid rain and exposure to sunlight during transportation.
- Payment Method: Sample orders: PayPal/Alipay/Bank transfer; Bulk orders: T/T (telegraphic transfer, 30% prepayment + 70% balance), L/C (letter of credit), negotiable.
- Certifications: ISO 9001 Quality Management System Certification, GMP Cosmetic Raw Material Production Standard Certification, HALAL Certification (optional), KOSHER Certification (optional)
- Quality Assurance: Each batch of products provides a Certificate of Analysis (COA); meets quality standard requirements; provides a Material Safety Data Sheet (MSDS).
Packaging and Storage of Lauroyl Glutamic Acid
- Packaging: 1kg/aluminum foil bag (lined with PE bag), 5kg/carton, 25kg/cardboard drum (lined with double-layer PE bag). Customized packaging is available.
- Storage: Store in a cool, dry place (temperature ≤35℃, relative humidity ≤65%), avoiding direct sunlight, high temperatures, and humid environments.
- Shelf Life: Unopened, shelf life is 24 months under suitable storage conditions; once opened, it is recommended to use within 3 months.
- CAS No.: 3397-65-7
- Molecular Formula: C17H31NO5
- Molecular Weight: 329.43 g/mol
- Precautions: Wear a dust mask and latex gloves during handling to avoid inhaling dust; avoid storing with strong alkalis (such as concentrated sodium hydroxide) or strong oxidants (such as potassium permanganate).
Applications of Lauroyl Glutamic Acid
- Cosmetic-grade Lauroyl Glutamic Acidcan be used as a main surfactant or auxiliary cleansing ingredient in personal care products, such as amino acid facial cleansers and gentle body washes. It is gentler than traditional surfactants and effectively protects the skin.
- Cosmetic-grade Lauroyl Glutamic Acidcan be used as an emulsifying stabilizer and skin feel modifier in beauty and makeup products (foundation, primer, etc.) to help improve the smoothness and skin adhesion of the product.
- Cosmetic-grade Lauroyl Glutamic Acidis a key ingredient in baby care products (such as diaper rash cream and baby bath wash). It is suitable for babies’ delicate skin, is not prone to irritation, and is gentle and safe.
- Cosmetic-grade lLauroyl Glutamic Acidcan be used as a low-irritant cleaning ingredient in oral care products.It helps reduce irritation to the oral mucosa, making it especially suitable for young children or those with sensitive teeth and gums.
- Industrial-grade Lauroyl Glutamic Acidcan be used as a low-foaming and mild surfactant for industrial cleaning (precision instruments, electronic components, etc.). It is easy to rinse clean and avoids corrosion caused by residue.
- Industrial-grade Lauroyl Glutamic Acidcan be used as a raw material in household cleaners, textile auxiliaries, and other products.It helps reduce pollution to the environment and water sources.
- Pharmaceutical-grade Lauroyl Glutamic Acidis a special raw material for certain specific and high-requirement pharmaceutical preparations.For example, functional excipients in topical preparations for patients with severe dermatitis, burns, etc.
- High-purity, low-impurity Lauroyl Glutamic Acidcan also be used in food contact material cleaning agents where strict requirements for chemical residues are placed.For example, cleaning of infant formula milk powder production lines and brewing equipment.
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