Egg Yolk Lecithin CAS 93685-90-6 Manufacturer | High PC Grade

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Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Min: 10 Gram
Delivery: 10 Days
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port

Name: Egg Yolk Lecithin

Cas: 93685-90-6

Purity: 99%

MOQ: 1KG

Directory Guidance on Egg Yolk Lecithin

Chemical Structure

Basic Info

Egg Yolk Lecithin (CAS Registry Number: 93685-90-6) is a naturally derived mixture of phospholipids extracted and purified from avian egg yolks through controlled solvent extraction and cold fractionation. Composed predominantly of phosphatidylcholine (PC), phosphatidylethanolamine (PE), and minor amounts of sphingomyelin and lysophospholipids, this amphiphilic biomolecule possesses both hydrophilic choline headgroups and hydrophobic fatty acid tails.

At Shandong Zhishang Chem Co., Ltd., our extraction and chromatographic purification lines yield Egg Yolk Lecithin grades tailored for demanding formulation environments. Unlike plant-derived soy or sunflower lecithins, egg-derived phospholipids exhibit a higher phosphatidylcholine-to-phosphatidylethanolamine ratio and a more saturated fatty acid profile, resulting in superior oxidative stability and tighter bilayer membrane packing in emulsion and liposomal systems.

Technical Data Sheet (Standard High-Purity Grade):

CAS Registry Number: 93685-90-6 (EINECS: 297-639-2)
INCI Designation: Lecithin (Egg-Derived)
Appearance: Pale yellow to amber waxy solid or free-flowing powder (grade dependent)
Phosphatidylcholine (PC) Content: 70.0% to 98.0% (HPLC, customizable by grade)
Phosphatidylethanolamine (PE) Content: 15.0% maximum
Acid Value: 15.0 mg KOH/g maximum (lower acid grades available at 1.0 mg KOH/g max)
Peroxide Value (POV): 3.0 meq/kg maximum
Iodine Value: 60 to 75 g I2/100g
Moisture Content (Karl Fischer): 1.5% maximum
Heavy Metals (Total as Pb): 10 ppm maximum
Residual Solvents (Ethanol / Hexane): Compliant with ICH Q3C limits

Product Packaging

Egg Yolk Lecithin Application

Thanks to its biocompatible bilayer-forming architecture and gentle surface activity, Egg Yolk Lecithin serves critical roles across several specialized industries:

Advanced Cosmetic and Skincare Emulsions: Functions as a biomimetic emulsifier and skin-conditioning agent in creams, serums, and barrier-repair lotions, mimicking natural stratum corneum lipids to enhance formulation texture without synthetic surfactant irritation.

Liposomal Encapsulation Systems: Forms stable unilamellar and multilamellar vesicles capable of encapsulating oil-soluble vitamins, botanical extracts, and active cosmetic ingredients to improve dispersion stability.

Nutritional and Beverage Emulsions: Acts as a natural, clean-label dispersing and wetting agent in specialized nutritional powders, lipid emulsions, and functional beverage concentrates.

Biochemical and Cell Culture Research: Utilized as a high-purity lipid standard and membrane model component in academic and industrial laboratory studies.

FAQ

Q1: Why do formulators choose Egg Yolk Lecithin over soy or sunflower lecithin?

A1: Egg Yolk Lecithin naturally contains a significantly higher concentration of phosphatidylcholine (typically 70% or higher after purification) and a higher proportion of saturated palmitic and stearic fatty acid chains. This structure provides better resistance to oxidation and forms more stable, less permeable liposomal membranes than highly unsaturated plant lecithins.

Q2: What storage and cold-chain conditions are required to preserve Egg Yolk Lecithin?

A2: Due to its sensitivity to heat and atmospheric oxygen, Egg Yolk Lecithin is packed under an inert nitrogen atmosphere in light-resistant aluminum foil bags or sealed drums. High-PC grades should be stored frozen at minus 20 degrees Celsius, while standard cosmetic grades should be kept refrigerated between 2 and 8 degrees Celsius in a dry environment.

Q3: How is Egg Yolk Lecithin dispersed into aqueous formulations during manufacturing?

A3: Egg Yolk Lecithin swells in water to form lamellar liquid-crystalline phases. For optimal dispersion, pre-hydrate the lecithin in warm deionized water (45 to 55 degrees Celsius) under moderate mechanical agitation, or dissolve it in the warm oil/polyol phase prior to high-shear homogenization.

Q4: What packaging sizes and technical documents accompany international orders?

A4: Standard commercial supply is available in 1 kg and 5 kg nitrogen-flushed aluminum foil pouches inside protective fiber drums, as well as 20 kg bulk containers. Every shipment includes a lot-specific Certificate of Analysis (COA), HPLC chromatogram, GHS Safety Data Sheet, and BSE/TSE-free certificate.

Related References

Pubchem-Egg Yolk Lecithin

Chemicalbook-Egg Yolk Lecithin

Regulatory Compliance and Quality Certifications

Sourcing biological phospholipids requires strict traceability from avian raw materials through final cold-chain packaging. Shandong Zhishang Chem enforces multi-tiered compliance protocols to support international formulators and distributors:

ISO 9001:2015 and ISO 22000 Quality Systems: End-to-end batch traceability documenting egg yolk origin, non-GMO feed verification, extraction parameters, and nitrogen-flushed packaging.

EU REACH and Global Inventory Alignment: Comprehensive regulatory dossiers, Safety Data Sheets (SDS), and BSE/TSE-free declarations provided to facilitate smooth customs clearance.

Clean-Label and Allergen Transparency: Manufactured in dedicated processing lines with documented allergen control protocols and zero synthetic preservatives or BHT/BHA antioxidants.

Good Manufacturing Practice (GMP) Alignment: Controlled cleanroom finishing for high-PC grades designed for sensitive topical, cosmetic, and nutritional emulsion applications.

Analytical Testing and Batch Verification (In-House QC)

Unsaturated fatty acid chains in natural phospholipids are vulnerable to lipid peroxidation if exposed to heat or oxygen. Before any lot of CAS 93685-90-6 is cleared for export, our analytical laboratory executes a strict five-point verification protocol:

High-Performance Liquid Chromatography (HPLC-ELSD): Separates and quantifies individual phospholipid classes (PC, PE, LPC, and sphingomyelin) to confirm exact compositional ratios.

Oxidative Stability Screening (Peroxide and Anisidine Values): Measures primary and secondary oxidation markers to ensure fresh, odor-neutral material with extended shelf life.

Gas Chromatography Residual Solvent Assay: Headspace GC analysis verifying that extraction solvents remain well below international pharmacopeial and cosmetic thresholds.

Microbiological and Endotoxin Profiling: Comprehensive plate counts confirming absence of Salmonella, E. coli, yeast, and mold, with low-endotoxin testing available for specialized research grades.

Karl Fischer Moisture and Acid Value Titration: Prevents hydrolytic cleavage of ester bonds during storage and guarantees predictable interfacial tension behavior.

Manufacturer of Egg Yolk Lecithin

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ZhishangChem company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.

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Raymond

I would like to thank Shandong Zhishang New Materials Co., Ltd. for a very efficient transaction with their team.

Happy cooperation

Raymond Louis

The goods have been delivered intact. good packing. honest seller

Very satisfied

Mary

As usual, a great service from dear zhishang chemical, and the perfect quality of product! Highly recommend this company, and hope for long and productive cooperation :)

My friend

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