Description

Sericin CAS NO 60650-89-7 is a natural globular protein derived from silk, primarily from the silkworm *Bombyx mori*. This biocompatible and biodegradable polymer is valued for its unique functional properties, including moisture retention, antioxidant activity, and cell adhesion promotion. It serves as a critical functional ingredient for manufacturers in the cosmetics, biomedical, pharmaceutical, and advanced materials sectors seeking sustainable and high-performance biomaterials.

Application

• Cosmetics & Personal Care: Used as a natural moisturizing, film-forming, and anti-aging agent in skincare, haircare, and sunscreen formulations.
• Biomedical Engineering: Employed in wound dressings, tissue engineering scaffolds, and drug delivery systems due to its biocompatibility and cell proliferation support.
• Pharmaceuticals: Acts as a coating material for tablets and capsules, and as a functional excipient in controlled-release formulations.
• Functional Textiles & Fibers: Applied as a natural finishing agent to impart moisture-wicking, antimicrobial, or UV-protective properties to fabrics.
• Food & Nutraceuticals: Utilized as an edible coating to extend shelf-life of fresh produce and as a source of bioactive peptides.
• Advanced Materials: Incorporated into biodegradable films, hydrogels, and composites for environmentally friendly packaging and products.

Basic Information

Product Name	Sericin
CAS No.	60650-89-7
Molecular Formula	Contact for details
Molecular Weight	Variable (High Molecular Weight Polymer)
Synonyms	Silk Sericin; Silk Gum; Silk Protein Sericin; Sericin Protein; Bombyx mori Sericin; Silk Glue; Fibroin Gum; Silk Peptide
EINECS	Contact for details

Quality Control

Our Sericin is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and purity. We offer various grades, including cosmetic and technical grades, with specifications tailored to your application needs. A comprehensive Certificate of Analysis (COA) detailing purity, protein content, microbiological limits, and physical parameters is provided with every shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to light yellow powder
Identification (IR)	Conforms
Protein Content (Total Nitrogen)	≥ 90.0 %
Loss on Drying	≤ 8.0 %
Ash Content	≤ 2.0 %
pH (1% Solution)	6.5 - 7.5
Heavy Metals (as Pb)	≤ 20 ppm
Total Plate Count	≤ 1000 CFU/g
Yeast & Mold	≤ 100 CFU/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.