Tolfenpyrad

Name: Tolfenpyrad
Brand: Vaqora Chemicals
SKU: VQ-039529

About Tolfenpyrad

Listed under CAS 129558-76-5, Tolfenpyrad is an analytical reagent available from Vaqora Chemicals. Its molecular formula is C21H22ClN3O2 and its molecular weight is 383.9 g/mol. Its systematic (IUPAC) name is 4-chloro-3-ethyl-1-methyl-N-[[4-(4-methylphenoxy)phenyl]methyl]pyrazole-5-carboxamide. Common synonyms include Tolfenpyrad [ISO] and OMI 88.

Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Key uses span agrochemical formulations and laboratory analysis. It is used across academic and industrial research and agrochemical production.

Vaqora Chemicals supplies Tolfenpyrad 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.

Typical applications

Agrochemical formulations
Laboratory analysis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Tolfenpyrad
Catalogue No.	VQ-039529
CAS Number	129558-76-5
IUPAC name	4-chloro-3-ethyl-1-methyl-N-[[4-(4-methylphenoxy)phenyl]methyl]pyrazole-5-carboxamide
Molecular formula	C₂₁H₂₂ClN₃O₂
Molecular weight	383.9 g/mol
Exact mass	383.1401
InChIKey	WPALTCMYPARVNV-UHFFFAOYSA-N
SMILES	CCC1=NN(C(=C1Cl)C(=O)NCC2=CC=C(C=C2)OC3=CC=C(C=C3)C)C
PubChem CID	10110536

Physical properties
Physical form	Other
LogP (XLogP3)	4.7
H-bond donors / acceptors	1 / 3
TPSA	56.2 Å²
Synonyms	4-chloro-3-ethyl-1-methyl-N-(4-(p-tolyloxy)benzyl)pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-((4-(4-methylphenoxy)phenyl)methyl)-1H-pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-[4-(4-methylphenoxy)benzyl]-1H-pyrazole-5-carboxamide, 4-Chloro-3-ethyl-1-methyl-N-{[4-(4-methylphenoxy)phenyl]methyl}-1H-pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-(4-(4-methylphenoxy)benzyl)-1H-pyrazole-5-carboxamide, Tolfenpyrad [ISO], 4-chloro-5-ethyl-2-methyl-N-[[4-(4-methylphenoxy)phenyl]methyl]pyrazole-3-carboxamide, 4-chloro-3-ethyl-1-methyl-N-(4-(p-tolyloxy)benzyl)-1H-pyrazole-5-carboxamide, 4-Chloro-3-ethyl-1-methyl-N-(4-(p-tolyloxy)-benzyl)-1H-pyrazole-5-carboxamide, OMI 88, N-[4-(4-methylphenoxy)benzyl]-4-chloro-3-ethyl-1-methyl-5-pyrazolecarboxamide, 1H-Pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-[[4-(4-ethylphenoxy)phenyl]methyl]-

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302+H332Harmful if swallowed or if inhaled
H302Harmful if swallowed
H332Harmful if inhaled
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P260, P261, P264, P270, P271, P273, P301 + P317, P304 + P340, P317, P319, P330, 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 Tolfenpyrad?

The CAS Registry Number of Tolfenpyrad is 129558-76-5. It is also known as 4-chloro-3-ethyl-1-methyl-N-(4-(p-tolyloxy)benzyl)pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-((4-(4-methylphenoxy)phenyl)methyl)-1H-pyrazole-5-carboxamide, 4-chloro-3-ethyl-1-methyl-N-[4-(4-methylphenoxy)benzyl]-1H-pyrazole-5-carboxamide.

What is the molecular formula and molecular weight of Tolfenpyrad?

Tolfenpyrad has the molecular formula C21H22ClN3O2 and a molecular weight of 383.9 g/mol. Its IUPAC name is 4-chloro-3-ethyl-1-methyl-N-[[4-(4-methylphenoxy)phenyl]methyl]pyrazole-5-carboxamide.

Which grade and pack sizes of Tolfenpyrad can I order?

We supply Tolfenpyrad, 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 Tolfenpyrad?

Yes. Every lot of Tolfenpyrad 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 Tolfenpyrad be shipped internationally?

Yes. Tolfenpyrad 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.