Pyrethrine 1 structure

Pyrethrine 1

TL;DR: Pyrethrine 1 (CAS 121-21-1) is a chemical compound with molecular formula C21H28O3 and molecular weight 328.20 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(2-methyl-4-oxo-3-penta-2,4-dienylcyclopent-2-en-1-yl) 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

Also Known As: Pyrethrins, Pyrethrine 1, Pyrethrin 1, PYRETHRIN I, (2-methyl-4-oxo-3-penta-2,4-dienylcyclopent-2-en-1-yl) 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

CAS: 121-21-1
Molecular Formula C21H28O3
Molecular Weight 328.20 g/mol
LogP 5.4
Topological Polar Surface Area 43.4 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 3
Rotatable Bonds 7
Exact Mass 328.20386
Heavy Atoms 24
Complexity 642.0

Chemical Identifiers

CAS Number 121-21-1
SMILES CC1=C(C(=O)CC1OC(=O)C2C(C2(C)C)C=C(C)C)CC=CC=C
InChIKey ROVGZAWFACYCSP-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 2 IPC patent classification(s) across the SureChEMBL global patent database.

Agrochemicals (9 patents) Pharmaceutical Intermediates (3 patents)

Product Overview

Pyrethrine 1 (CAS 121-21-1), with molecular formula C21H28O3 and molecular weight 328.20 g/mol. IUPAC: (2-methyl-4-oxo-3-penta-2,4-dienylcyclopent-2-en-1-yl) 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of Pyrethrine 1

XLogP
5.4
TPSA (Topological Polar Surface Area)
43.4
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
3
Rotatable Bonds
7
Heavy Atoms
24
Complexity
642.0
Exact Mass
328.20386
Monoisotopic Mass
328.20386
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of Pyrethrine 1

The XLogP value of 5.4 indicates that Pyrethrine 1 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 43.4 Ų, Pyrethrine 1 exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, Pyrethrine 1 has 0 hydrogen bond donor(s) and 3 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of Pyrethrine 1?

The CAS number of Pyrethrine 1 is 121-21-1.

What is the molecular formula of Pyrethrine 1?

The molecular formula of Pyrethrine 1 is C21H28O3.

What is the molecular weight of Pyrethrine 1?

The molecular weight of Pyrethrine 1 is 328.20 g/mol.

Where can I buy Pyrethrine 1?

You can request a quote for Pyrethrine 1 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pyrethrine 1?

Yes, KEHONG BIO provides custom synthesis services for Pyrethrine 1 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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