Fenthion

Name: Fenthion
Brand: Vaqora Chemicals
SKU: VQ-039348

About Fenthion

Fenthion is an analytical reagent carrying the CAS registry number 55-38-9. Its molecular formula is C10H15O3PS2 and its molecular weight is 278.3 g/mol. The IUPAC name is dimethoxy-(3-methyl-4-methylsulfanylphenoxy)-sulfanylidene-lambda5-phosphane. It is also known as Fenthione or Fenthion-methyl.

Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include agrochemical formulations and laboratory analysis. Typical end-use sectors are academic and industrial research and agrochemical production.

Vaqora Chemicals supplies Fenthion in 100 mg, 250 mg, 1 g and 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation. 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	Fenthion
Catalogue No.	VQ-039348
CAS Number	55-38-9
IUPAC name	dimethoxy-(3-methyl-4-methylsulfanylphenoxy)-sulfanylidene-lambda5-phosphane
Molecular formula	C₁₀H₁₅O₃PS₂
Molecular weight	278.3 g/mol
Exact mass	278.02
InChIKey	PNVJTZOFSHSLTO-UHFFFAOYSA-N
SMILES	CC1=C(C=CC(=C1)OP(=S)(OC)OC)SC
PubChem CID	3346

Physical properties
Physical form	Other
LogP (XLogP3)	4.1
H-bond donors / acceptors	0 / 5
TPSA	85.1 Å²
Synonyms	Fenthione, Fenthion-methyl, Bayer 29493, Pro-Spot, Fenthion 4E, MPP (pesticide), Bay-Bassa, Bayer 9007, Bayer S-1752, OMS 2, 4-Methylmercapto-3-methylphenyl dimethyl thiophosphate, ENT 25,540

Safety & hazard information (GHS)

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H331Toxic if inhaled
H341Suspected of causing genetic defects
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P260, P261, P264, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P316, P317, P318, P319, P321, P330, P362 + P364, P391, P403 + P233, P405, 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 Fenthion?

The CAS Registry Number of Fenthion is 55-38-9. It is also known as Fenthione, Fenthion-methyl, Bayer 29493.

What is the molecular formula and molecular weight of Fenthion?

Fenthion has the molecular formula C10H15O3PS2 and a molecular weight of 278.3 g/mol. Its IUPAC name is dimethoxy-(3-methyl-4-methylsulfanylphenoxy)-sulfanylidene-lambda5-phosphane.

Which grade and pack sizes of Fenthion can I order?

We supply Fenthion, 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 Fenthion?

Yes. Every lot of Fenthion 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 Fenthion be shipped internationally?

Yes. Fenthion 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.