Description

20 Kda Protein, Bacillus Thuringiensis is a specific insecticidal crystal protein (Cry protein) derived from the bacterium *Bacillus thuringiensis*. This high-purity protein is critical for its targeted pesticidal activity against specific insect larvae, offering an effective biological control agent. It is essential for manufacturers in the agricultural biotechnology, biopesticide formulation, and life science research sectors seeking reliable, high-quality active ingredients.

Application

• Core Ingredient in Bio-Insecticides & Biopesticides: Formulated into sprays, granules, or seed treatments for organic and integrated pest management (IPM) programs.
• Agricultural Biotechnology: Used in the research and development of genetically modified (GM) crops engineered for insect resistance (Bt crops).
• Public Health Vector Control: Employed in products targeting mosquito and black fly larvae to combat diseases like malaria and dengue fever.
• Forestry and Turf Management: Applied for the protection of trees and grasses from lepidopteran and coleopteran pests.
• Research & Development Standard: Serves as a reference standard and active material in academic, governmental, and industrial R&D for mode-of-action studies and efficacy testing.
• Specialty Organic Agriculture: A key component in certified organic farming solutions where synthetic chemical pesticides are restricted.

Basic Information

Product Name	20 Kda Protein, Bacillus Thuringiensis
CAS No.	149291-20-3
Molecular Formula	Contact for details
Molecular Weight	~20,000 Da (KiloDalton)
Synonyms	Cry Protein (20 kDa); *Bacillus thuringiensis* insecticidal crystal protein; Bt toxin protein; δ-endotoxin; Parasporal crystal protein; Insecticidal protein; Microbial pesticide protein; Biopesticide active ingredient.
EINECS	Contact for details

Quality Control

Our 20 Kda Protein, Bacillus Thuringiensis is produced and controlled under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including purity assay by HPLC, SDS-PAGE for molecular weight confirmation, and bioactivity assays to ensure potency. Certificates of Analysis (COA) detailing all test results are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as specified on the label. This product is hygroscopic (moisture-sensitive); ensure containers are sealed tightly after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or lyophilized solid
Identification (SDS-PAGE)	Corresponds to ~20 kDa band
Purity (HPLC)	≥ 90%
Protein Content (Biuret)	≥ 95%
Biological Activity (Bioassay)	Meets reference standard potency
Endotoxin (LAL)	< 10 EU/mg
Moisture Content (KF)	< 5.0 %

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