Description

Pyrethrin 2 CAS NO 121-29-9 is a key active constituent of natural pyrethrins, a class of organic compounds derived from chrysanthemum flowers. This compound is highly valued for its potent insecticidal activity and rapid knockdown effect against a wide range of pests. It is an essential ingredient for manufacturers in the agricultural, public health, and household insecticide sectors seeking effective, naturally-derived pest control solutions.

Application

• Agricultural Insecticides: Formulated for the control of sucking and chewing insects on a variety of food and non-food crops.
• Public Health Products: Used in sprays, coils, and vaporizers for mosquito and fly control to combat vector-borne diseases.
• Household & Garden Sprays: A core active ingredient in ready-to-use sprays for flies, ants, cockroaches, and other domestic pests.
• Pet Care Products: Incorporated into shampoos, sprays, and spot-on treatments for flea and tick control.
• Stored Product Protection: Applied to protect grains and other stored commodities from insect infestation.
• Organic Farming Inputs: A critical component in certified organic insecticide formulations due to its natural origin.

Basic Information

Product Name	Pyrethrin 2
CAS No.	121-29-9
Molecular Formula	C22H28O5
Molecular Weight	372.46 g/mol
Synonyms	Pyrethrin II; (S)-Pyrethrin II; Pyrethric acid, (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate, (1S,3S,1'R,3'R)-ester with (S)-4-hydroxy-3-methyl-2-(2,4-pentadien-1-yl)cyclopent-2-en-1-one; Chrysanthemum monocarboxylic acid ester of pyrethrolone; (1R,3R)-2,2-Dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylic acid (1S,3S,1'R,3'R)-ester with (S)-4-hydroxy-3-methyl-2-(2,4-pentadien-1-yl)cyclopent-2-en-1-one; Pyrethrolone ester of chrysanthemumdicarboxylic acid monomethyl ester.
EINECS	204-456-1

Quality Control

Our Pyrethrin 2 is produced and tested to meet stringent quality standards for active ingredient manufacturers. Each batch is analyzed to confirm identity, potency, and purity using advanced chromatographic methods. A comprehensive Certificate of Analysis (COA) detailing assay, related substances, and physical parameters is provided to ensure traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere for long-term storage. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous pale yellow to amber liquid
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 92.0%
Related Substances (HPLC)	Total impurities ≤ 8.0%
Specific Rotation	Contact for details
Solubility	Soluble in most organic solvents; insoluble in water

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