CRM64156

Methoxychlor

certified reference material, TraceCERT^®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

• Synonym(s): 1,1,1-Trichloro-2,2-bis-(p-methoxyphenyl)ethane, 2,2-Bis(4-methoxyphenyl)-1,1,1-trichloroethane, DMDT
• Empirical Formula (Hill Notation): C₁₆H₁₅Cl₃O₂
• CAS Number: 72-43-5
• Molecular Weight: 345.65
• Beilstein: 2057367
• MDL number: MFCD00000803
• UNSPSC Code: 41116107

Properties

• grade: certified reference material; TraceCERT^®
• Quality Level: 300
• product line: TraceCERT^®
• shelf life: limited shelf life, expiry date on the label
• manufacturer/tradename: Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
• mp: 86-88 °C (lit.)
• format: neat
• SMILES string: COc1ccc(cc1)C(c2ccc(OC)cc2)C(Cl)(Cl)Cl
• InChI: 1S/C16H15Cl3O2/c1-20-13-7-3-11(4-8-13)15(16(17,18)19)12-5-9-14(21-2)10-6-12/h3-10,15H,1-2H3
• InChI key: IAKOZHOLGAGEJT-UHFFFAOYSA-N

Description

General description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com

Methoxychlor is an organochlorine insecticide, used widely against a wide variety of insects in field crops, forage crops, vines, flowers, animal houses, dairies, and industries. It gets activated by contact and ingestion, modulating the voltage-gated sodium channels and causing hyperexcitation. It also exhibits endocrine-disrupting behavior by means of displaying both estrogenic and antiandrogenic activities.
According to the Commission Regulation (EC) No 2076/2002 of 20th November 2002, methoxychlor is not approved for use in the European Union (EU) as a plant protection agent, following the Regulation (EC) No. 1107/2009. But a default maximum residue limit of 0.01-0.1 mg/kg is applicable for its presence in the products of plant and animal origin as per the EU Reg. 149/2008.

Application

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques.
Methoxychlor CRM may also be used as given below:

• To determine residues of selected pesticides in agricultural water samples by high-performance liquid chromatography (HPLC)(2)
  Ultrasound-assisted solvent extraction (UASE) and headspace solid-phase microextraction (HS-SPME) based extraction of 20 organochlorine pesticides from ethylenevinyl acetate (EVA) passive samplers employed for monitoring of marine surface waters, followed by a gas chromatography-tandem mass spectrometry (GC-MS/MS) detection
• Simultaneous extraction and determination of 89 hydrophobic organic contaminants (HOCs) in marine sediment and biota samples using gas chromatography-electron ionization-triple quadrupole mass spectrometry (GC-EI-MS/MS) and liquid chromatography-electrospray ionization-triple quadrupole mass spectrometry (LC-ESI-MS/MS)
• Determination of 26 organochlorine pesticides in tobacco samples using magnetic graphene for QuEChERS-based sample extraction and determination by online gel permeation chromatography-gas chromatography/tandem mass spectrometry (online GPC-GC-MS2)
• Evaluate the coupling of gel-permeation clean-up (GPC) with gas-chromatography-tandem mass spectrometry (GC-MS/MS) and liquid-chromatography-tandem mass spectrometry (LC-MS/MS) techniques to determine various pesticides in fatty matrices
• Multi-residue analysis of polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in personal product samples by gas chromatography in combination with flame ionization detector (GC-FID) and electron capture detector (GC-ECD)

Biochem/physiol Actions

Pesticide with estrogenic activity.

Recommended products

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Legal Information

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS07,GHS08,GHS09
• Signal Word: Warning
• Hazard Statements: H302 - H361fd - H410
• Precautionary Statements: P202 - P264 - P273 - P280 - P301 + P312 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Repr. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable