Description

Pyrethrin 1 CAS NO 121-21-1 is a key natural insecticidal ester derived from chrysanthemum flowers, representing one of the most potent active components of pyrethrum extract. Its primary value lies in its rapid knockdown effect on a wide spectrum of insects, coupled with a favorable environmental profile due to its natural origin and biodegradability. This compound is essential for manufacturers in the agricultural, public health, and domestic pest control sectors who require effective, natural active ingredients for formulating insecticides, aerosols, and pet care products.

Application

• Active ingredient in agricultural insecticides for crop protection.
• Formulation of household insecticide sprays, aerosols, and foggers.
• Key component in public health products for mosquito and fly control.
• Manufacturing of pet care products such as shampoos and sprays for flea and tick control.
• Use in stored product protection to safeguard grains and other commodities.
• Incorporation into livestock and poultry pest management solutions.
• Base material for manufacturing synthetic pyrethroids.

Basic Information

Product Name	Pyrethrin 1
CAS No.	121-21-1
Molecular Formula	C21H28O3
Molecular Weight	328.45 g/mol
Synonyms	Pyrethrin I; (1R,3R)-2,2-Dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylic acid (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate; Chrysanthemum monocarboxylic acid ester; Pyrethrolone chrysanthemumate; Pyrethrum extract component; Natural Pyrethrin 1
EINECS	204-455-1

Quality Control

Our Pyrethrin 1 is produced and tested under strict quality management protocols to ensure high purity and batch-to-batch consistency. Quality is verified through comprehensive analytical methods including HPLC for assay and impurity profiling. While produced to high standards, this product is typically for technical or industrial use. Certificates of Analysis (COA) detailing specific batch results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous pale yellow to amber liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90%
Related Substances (HPLC)	Pyrethrin II: NMT 5.0% Other impurities: NMT 2.0% (individual) Total impurities: NMT 10.0%
Specific Rotation	Contact for details
Refractive Index	Contact for details

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