Description

Bombyx 21G1 Protein is a specialized silk-derived protein with the CAS number 143107-99-7. This high-purity biomaterial is valued for its unique structural and functional properties, offering significant advantages in advanced material science and biomedical applications. It is essential for research and development in industries such as cosmetics, pharmaceuticals, and high-performance textiles, where biocompatibility and natural origin are critical.

Application

• Cosmetic & Skincare Formulations: Acts as a premium film-forming agent, moisturizer, and conditioning agent in serums, creams, and masks to improve skin elasticity and texture.
• Biomedical Engineering: Used in the development of bio-scaffolds, wound dressings, and drug delivery systems due to its excellent biocompatibility and biodegradability.
• Advanced Material Science: Serves as a key component in the creation of bio-based films, coatings, and fibers for technical textiles and sustainable packaging.
• Hair Care Products: Provides strengthening and protective benefits in shampoos, conditioners, and styling products, enhancing hair shine and manageability.
• Nutraceuticals & Functional Foods: Investigated for its potential as a source of bioactive peptides and a functional ingredient in specialized dietary supplements.
• Tissue Culture & Research: Employed as a substrate or additive in cell culture media to promote cell adhesion and growth in vitro.

Basic Information

Product Name	Bombyx 21G1 Protein
CAS No.	143107-99-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Silk Protein 21G1; Bombyx mori Silk Protein; Fibroin-derived Protein; Sericin Protein; Silk Hydrolysate; Silk Peptide Complex; Silk Amino Acids; Bombyx Mori Cocoon Extract
EINECS	Contact for details

Quality Control

Our Bombyx 21G1 Protein is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets stringent specifications for purity, composition, and biological activity. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent clumping or degradation. For long-term stability, consider storage under desiccant.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Protein Content (Assay)	≥ 95.0%
Moisture Content (Loss on Drying)	≤ 5.0%
Ash Content	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 CFU/g
Solubility (in water)	Partially soluble, forms colloidal dispersion

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