Malaoxon

Name: Malaoxon
Brand: Vaqora Chemicals
SKU: VQ-027163

About Malaoxon

Listed under CAS 1634-78-2, Malaoxon is an impurity of Malathion available from Vaqora Chemicals. Its molecular formula is C10H19O7PS and its molecular weight is 314.29 g/mol. Systematically, it is named diethyl 2-dimethoxyphosphorylsulfanylbutanedioate. Alternative names: Malaoxone and Carbethoxy malaoxon.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

This Malathion impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Malaoxon is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Malathion

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

Malathion impurities

Specifications & identifiers

Chemical identifiers
Product name	Malaoxon
Catalogue No.	VQ-027163
CAS Number	1634-78-2
IUPAC name	diethyl 2-dimethoxyphosphorylsulfanylbutanedioate
Molecular formula	C₁₀H₁₉O₇PS
Molecular weight	314.29 g/mol
Exact mass	314.0589
Grade	Reference Standard
HSN code	38229090
InChIKey	WSORODGWGUUOBO-UHFFFAOYSA-N
SMILES	CCOC(=O)CC(C(=O)OCC)SP(=O)(OC)OC
PubChem CID	15415

Physical properties
Physical form	Solid
LogP (XLogP3)	0.6
H-bond donors / acceptors	0 / 8
TPSA	113 Å²
Synonyms	Malaoxone, Carbethoxy malaoxon, Malathion oxon, O,O-Dimethyl S-1,2-bis(ethoxycarbonyl)ethyl phosphorothioate, Diethyl mercaptosuccinate S-ester with O,O-dimethyl phosphorothioate, O,O-Dimethyl-S-(1,2-dicarbethoxy)ethyl phosphorothioate, S-(1,2-Diethoxycarbonyl)ethyl O,O-dimethyl phosphorothioate, Butanedioic acid, ((dimethoxyphosphinyl)thio)-, diethyl ester, Succinic acid, mercapto-, diethyl ester, S-ester with O,O-dimethyl phosphorothioate, O,O-Dimethyl S-(1,2-dicarbethoxy)ethyl phosphorothioate, O,O-Dimethyl-S-1,2-bis(ethoxycarbonyl)ethyl phosphorothioate, Succinic acid, mercapto-, diethyl ester, S-ester with O,O-dimethylphosphorothioate

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H310Fatal in contact with skin

Precautionary statements: P262, P264, P270, P280, P301 + P316, P302 + P352, P316, P321, P330, P361 + P364, 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 Malaoxon?

The CAS Registry Number of Malaoxon is 1634-78-2. It is also known as Malaoxone, Carbethoxy malaoxon, Malathion oxon.

What is the molecular formula and molecular weight of Malaoxon?

Malaoxon has the molecular formula C10H19O7PS and a molecular weight of 314.29 g/mol. Its IUPAC name is diethyl 2-dimethoxyphosphorylsulfanylbutanedioate.

What is Malaoxon used for?

Malaoxon is supplied as a characterised reference material related to Malathion. 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 Malaoxon can I order?

We supply Malaoxon 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 Malaoxon?

Yes. Every lot of Malaoxon 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 Malaoxon be shipped internationally?

Yes. Malaoxon 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.