Paraoxon-methyl

About Paraoxon-methyl

Paraoxon-methyl is an organic building block carrying the CAS registry number 950-35-6. Its molecular formula is C8H10NO6P and its molecular weight is 247.14 g/mol. Its systematic (IUPAC) name is dimethyl (4-nitrophenyl) phosphate. Common synonyms include O,O-Dimethyl O-(4-nitrophenyl) phosphate and Paraoxon methyl.

It is supplied as a colourless to yellow to brown-yellow liquid. Reported physical data include a melting point of 0-4 °C. Store it at 2–8 °C, in a tightly closed container. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

Typical applications include chromatography and analytical determinations. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 100 mg packs, Paraoxon-methyl is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Chromatography
Analytical determinations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Paraoxon-methyl
Catalogue No.	VQ-011534
CAS Number	950-35-6
IUPAC name	dimethyl (4-nitrophenyl) phosphate
Molecular formula	C₈H₁₀NO₆P
Molecular weight	247.14 g/mol
Exact mass	247.0246
HSN code	29420090
InChIKey	BAFQDKPJKOLXFZ-UHFFFAOYSA-N
SMILES	COP(=O)(OC)OC1=CC=C(C=C1)[N+](=O)[O-]
PubChem CID	13708

Physical properties
Physical form	Liquid
Appearance	Colourless to yellow to brown-yellow liquid
Melting point	0-4 °C
LogP (XLogP3)	1.3
H-bond donors / acceptors	0 / 6
TPSA	90.6 Å²
Storage	2–8 °C
UN number	UN 2810
Synonyms	O,O-Dimethyl O-(4-nitrophenyl) phosphate, Paraoxon methyl, Dimethyl-p-nitrophenyl phosphate, Phosphoric acid, dimethyl-4-nitrophenyl ester, Dimethyl p-Nitrophenyl phosphate, MEE 600, Dimethyl paraoxon, Dimethyl 4-nitrophenyl phosphate, Phosphoric acid, dimethyl p-nitrophenyl ester, Phosphoric acid, dimethyl 4-nitrophenyl ester, O,O-Dimetyl-O-p-nitrofenylfosfat, Dimethyl-p-nitrofenylester kyseliny fosforecne

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H300Fatal if swallowed

Precautionary statements: P264, P270, P301 + P316, P321, P330, 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 Paraoxon-methyl?

The CAS Registry Number of Paraoxon-methyl is 950-35-6. It is also known as O,O-Dimethyl O-(4-nitrophenyl) phosphate, Paraoxon methyl, Dimethyl-p-nitrophenyl phosphate.

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

Paraoxon-methyl has the molecular formula C8H10NO6P and a molecular weight of 247.14 g/mol. Its IUPAC name is dimethyl (4-nitrophenyl) phosphate.

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

We supply Paraoxon-methyl, in 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

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

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

Yes. Paraoxon-methyl is classified as hazardous (UN 2810), 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.

How should Paraoxon-methyl be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.