CAS 8002-43-5 corresponds to phospholipids (mainly from soybean sources), which are a naturally occurring mixture of phospholipids with phosphatidylcholine as the core component. They are widely used as food emulsifiers, nutritional enhancers, and cosmetic ingredients.

Basic Information
-Chinese name: Phosphatidylcholine (commonly known as soybean lecithin)
-English name: Lecithin (Soybean Lecithin)
-Main ingredients: a mixture of phosphatidylcholine (PC) and other phospholipids (such as phosphatidylethanolamine, etc.)
-Molecular formula: usually expressed as C ₄₂ H ₈₀ NO ₈ P (specific composition may vary due to different sources and purities)
-Molecular weight: approximately 758.06 (depending on the specific acyl chain length)
-Appearance: A viscous liquid, granule, or powder ranging from light yellow to brown in color (appearing as a light yellow powder after oil removal), with a distinctive bean like odor
-Solubility: insoluble in water (can be dispersed into emulsion), soluble in organic solvents such as ethanol, ether, chloroform, etc., difficult to dissolve in acetone and cold petroleum ether
-Stability: Easy to absorb moisture, oxidize and change color. It should be stored in a cool and dry place away from light, sealed, and kept away from light (recommended to store at 2-8 ℃ or room temperature away from light)

Main sources and preparation
-Source: Mainly extracted from by-products of soybean oil refining (oil residue), but can also come from egg yolks, sunflower seeds, etc; CAS 8002-43-5 often refers to soy lecithin in industrial and regulatory contexts.
-Preparation: Through physical refining such as dissolution, degumming, decolorization, deodorization, or modification through enzymatic hydrolysis process (enzymatic hydrolysis of soybean phospholipids still uses this CAS number).

Core purpose
1. Food industry: emulsifiers, dispersants, antioxidant additives, used in chocolate, baked goods, dairy products, beverages, infant formula, etc.
2. Health food/nutritional supplements: As a source of choline and essential fatty acids, they claim to assist lipid metabolism and promote liver health (note: specific therapeutic effects require evidence-based support).
3. Cosmetics: emulsifier, skin conditioner, solubilizer, used for lotion, face cream and other products.
4. Pharmaceutical/scientific research: liposome raw materials, drug carriers, cell culture additives; Some preparations are used as adjunctive therapy for fatty liver and other conditions (specific approval is required for drugs).

Safety and Regulations
-Safety: Generally considered safe (GRAS), non hazardous chemicals; But it is prone to oxidation and deterioration, and requires standardized storage.
-Chinese regulations: When used as a food additive (emulsifier), the implementation standards include GB 30607-2014 “National Food Safety Standard for Food Additives – Enzymatic Hydrolyzed Soybean Phospholipids”, etc., and it should be used in moderation according to production needs.

Note: “Phosphatidylcholine” broadly refers to a class of substances, and narrowly refers to phosphatidylcholine; CAS 8002-43-5 is a universal identifier for soy lecithin mixtures in commercial and regulatory contexts, and is not the only precise CAS for a single pure compound (pure phosphatidylcholine has different specific CAS). Different purities, sources, or modified products may share this number, and specifications should be considered when purchasing.

Products :

Soya lecithin/ Soy lecithin CAS 8002-43-5 (food grade, 60% liquid 99% powder)
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