Chlorpyriphos-methyl

About Chlorpyriphos-methyl

Chlorpyriphos-methyl is an impurity of Chlorpyrifos carrying the CAS registry number 5598-13-0. The compound has the formula C7H7Cl3NO3PS, corresponding to a molecular weight of 322.5 g/mol. Its systematic (IUPAC) name is dimethoxy-sulfanylidene-[(3,5,6-trichloro-2-pyridinyl)oxy]-lambda5-phosphane. It is also known as Chlorpyrifos-Methyl or Chloropyriphos-methyl.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Pharmaceutical QC and development laboratories use this impurity standard of Chlorpyrifos to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Chlorpyrifos

View every impurity, metabolite and intermediate we list for Chlorpyrifos.

Chlorpyrifos impurities

Specifications & identifiers

Chemical identifiers
Product name	Chlorpyriphos-methyl
Catalogue No.	VQ-027234
CAS Number	5598-13-0
IUPAC name	dimethoxy-sulfanylidene-[(3,5,6-trichloro-2-pyridinyl)oxy]-lambda5-phosphane
Molecular formula	C₇H₇Cl₃NO₃PS
Molecular weight	322.5 g/mol
Exact mass	320.895
Grade	Reference Standard
HSN code	38229090
InChIKey	HRBKVYFZANMGRE-UHFFFAOYSA-N
SMILES	COP(=S)(OC)OC1=NC(=C(C=C1Cl)Cl)Cl
PubChem CID	21803

Physical properties
Physical form	Solid
LogP (XLogP3)	4.3
H-bond donors / acceptors	0 / 5
TPSA	72.7 Å²
Synonyms	Chlorpyrifos-Methyl, Chloropyriphos-methyl, Methyl chlorpyrifos, Methyl dursban, Methyl chlorpyriphos, Dowco 214, Dursban methyl, Reldan 50 EC, Phosphorothioic acid, O,O-dimethyl O-(3,5,6-trichloro-2-pyridinyl) ester, Phosphorothioic acid, O,O-dimethyl O-(3,5,6-trichloro-2-pyridyl) ester, O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate, O,O-Dimethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioate

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P261, P272, P273, P280, P302 + P352, P321, P333 + P317, 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 Chlorpyriphos-methyl?

The CAS Registry Number of Chlorpyriphos-methyl is 5598-13-0. It is also known as Chlorpyrifos-Methyl, Chloropyriphos-methyl, Methyl chlorpyrifos.

What is the molecular formula and molecular weight of Chlorpyriphos-methyl?

Chlorpyriphos-methyl has the molecular formula C7H7Cl3NO3PS and a molecular weight of 322.5 g/mol. Its IUPAC name is dimethoxy-sulfanylidene-[(3,5,6-trichloro-2-pyridinyl)oxy]-lambda5-phosphane.

What is Chlorpyriphos-methyl used for?

Chlorpyriphos-methyl is supplied as a characterised reference material related to Chlorpyrifos. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Chlorpyriphos-methyl can I order?

We supply Chlorpyriphos-methyl in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chlorpyriphos-methyl?

Yes. Every lot of Chlorpyriphos-methyl 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 Chlorpyriphos-methyl be shipped internationally?

Yes. Chlorpyriphos-methyl 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.