Pyrethrin 1

Name: Pyrethrin 1
Brand: Vaqora Chemicals
SKU: VQ-040949

About Pyrethrin 1

Pyrethrin 1 (CAS 121-21-1) is an analytical reagent offered by Vaqora Chemicals. With the molecular formula C21H28O3, it has a molar mass of 328.4 g/mol. Alternative names: Piretrina 1 and (+)-Pyrethronyl (+)-trans-chrysanthemate.

Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include agrochemical formulations and laboratory analysis. Buyers come mainly from academic and industrial research and agrochemical production.

Vaqora Chemicals supplies Pyrethrin 1 in 100 mg, 250 mg, 1 g and 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Agrochemical formulations
Laboratory analysis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Pyrethrin 1
Catalogue No.	VQ-040949
CAS Number	121-21-1
IUPAC name	cis-[(1S)-2-methyl-4-oxo-3-[(2Z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate
Molecular formula	C₂₁H₂₈O₃
Molecular weight	328.4 g/mol
Exact mass	328.2038
InChIKey	ROVGZAWFACYCSP-VUMXUWRFSA-N
SMILES	CC1=C(C(=O)C[C@@H]1OC(=O)[C@@H]2[C@H](C2(C)C)C=C(C)C)C/C=C\C=C
PubChem CID	5281045

Physical properties
Physical form	Other
LogP (XLogP3)	5.4
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	Piretrina 1, Chrysanthemum monocarboxylic acid pyrethrolone ester, (+)-Pyrethronyl (+)-trans-chrysanthemate, Pyrethrolone, chrysanthemum monocarboxylic acid ester, Pyrethrine I, Piretrina 1 [Portuguese], Pyrethrin I [BSI:ISO], Pyrethrine I [ISO-French]

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P261, P264, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P362 + P364, P391, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Pyrethrin 1?

The CAS Registry Number of Pyrethrin 1 is 121-21-1. It is also known as Piretrina 1, Chrysanthemum monocarboxylic acid pyrethrolone ester, (+)-Pyrethronyl (+)-trans-chrysanthemate.

What is the molecular formula and molecular weight of Pyrethrin 1?

Pyrethrin 1 has the molecular formula C21H28O3 and a molecular weight of 328.4 g/mol. Its IUPAC name is cis-[(1S)-2-methyl-4-oxo-3-[(2Z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate.

Which grade and pack sizes of Pyrethrin 1 can I order?

We supply Pyrethrin 1, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pyrethrin 1?

Yes. Every lot of Pyrethrin 1 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Pyrethrin 1 be shipped internationally?

Yes. Pyrethrin 1 is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.