Shipping to 128 countriesCOA and SDS with every lotQuotes within one business day
Bulk CASAccount
Analytical Reagents

Pyrethrin 1

Available on request

Order Pyrethrin 1 (CAS 121-21-1) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-035708.

Pack sizes
Pyrethrin 1 chemical structure
CAS number121-21-1
FormulaC21H28O3
Molar mass328.4 g/mol
InChIKeyROVGZAWFACYCSP-VUMXUWRFSA-N
IUPAC namecis-[(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

About Pyrethrin 1

Zemixal supplies Pyrethrin 1 within its laboratory Chemicals & Reagents portfolio. Identity at a glance: CAS 121-21-1, formula C21H28O3 and molar mass 328.4 g/mol.

Common uses in the lab and plant

  • Agrochemical formulations
  • Laboratory analysis

Safe handling

Hazard communication follows GHS (Warning: H302, H312, H332 and H400). Our SDS lists exposure controls and first-aid measures.

Available as 100 mg, 250 mg, 1 g and 5 g. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Agrochemical formulations
  • Laboratory analysis

Applications

Specifications and identifiers

Specifications of Pyrethrin 1
Product namePyrethrin 1
Catalogue numberZX-035708
CAS number121-21-1
IUPAC namecis-[(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 formulaC21H28O3
Molar mass328.4 g/mol
Exact mass328.2038
XLogP35.4
H-bond donors / acceptors0 / 3
Topological polar surface area43.4 Ų
InChIKeyROVGZAWFACYCSP-VUMXUWRFSA-N
SMILESCC1=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 CID5281045
SynonymsPiretrina 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]

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Pyrethrin 1
100 mgQuoted on request
250 mgQuoted on request
1 gQuoted on request
5 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Pyrethrin 1

Which CAS number identifies Pyrethrin 1?
Pyrethrin 1 is registered under CAS 121-21-1. You may also see it listed as Piretrina 1, Chrysanthemum monocarboxylic acid pyrethrolone ester, (+)-Pyrethronyl (+)-trans-chrysanthemate. Our catalogue number for this item is ZX-035708.
What are the formula and molar mass of Pyrethrin 1?
For Pyrethrin 1, its formula is C21H28O3 and its molar mass is 328.4 g/mol. The systematic (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. InChIKey ROVGZAWFACYCSP-VUMXUWRFSA-N lets you match it in any structure database.
What grade and pack sizes are available for Pyrethrin 1?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 100 mg, 250 mg, 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with Pyrethrin 1?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Pyrethrin 1 to my country?
Yes. Because Pyrethrin 1 is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
Cinerin II
CAS
121-20-0
Formula
C21H28O5
MW
360.4 g/mol
ZX-035711
Daimuron
CAS
42609-52-9
Formula
C17H20N2O
MW
268.35 g/mol
ZX-035715
Dimepiperate
CAS
61432-55-1
Formula
C15H21NOS
MW
263.4 g/mol
ZX-035716
Imidaclothiz
CAS
105843-36-5
Formula
C7H8ClN5O2S
MW
261.69 g/mol
ZX-035717
Hydramethylnon
CAS
67485-29-4
Formula
C25H24F6N4
MW
494.5 g/mol
ZX-035737
Quizalofop-P
CAS
94051-08-8
Formula
C17H13ClN2O4
MW
344.7 g/mol
ZX-035676

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Compare 0 of 4Compare now