31041

4,4′-DDT

PESTANAL^®, analytical standard

• Synonym(s): 1,1,1-Trichloro-2,2-bis(4-chlorophenyl)ethane, 1,1-Bis(4-chlorophenyl)-2,2,2-trichloroethane
• Linear Formula: (ClC₆H₄)₂CHCCl₃
• CAS Number: 50-29-3
• Molecular Weight: 354.49
• Beilstein/REAXYS Number: 1882657
• EC Number: 200-024-3
• MDL number: MFCD00000802
• UNSPSC Code: 41116107
• PubChem Substance ID: 329753624
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• product line: PESTANAL^®
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: 107-110 °C (lit.)
• application(s): cleaning products; cosmetics; food and beverages; personal care
• format: neat
• SMILES string: Clc1ccc(cc1)C(c2ccc(Cl)cc2)C(Cl)(Cl)Cl
• InChI: 1S/C14H9Cl5/c15-11-5-1-9(2-6-11)13(14(17,18)19)10-3-7-12(16)8-4-10/h1-8,13H
• InChI key: YVGGHNCTFXOJCH-UHFFFAOYSA-N

Description

General description

4,4′-DDT (Dichlorodiphenyltrichloroethane) is a notorious organochlorine pesticide. It contains 77% p′p′-DDT, 15% o′p′-DDT, 4% p′p′-DDE (Dichlorodiphenyltrichloroethylene) and less than 1% o′p′-DDD (Dichlorodiphenyldichloroethane), p′p′-DDD and o′p′-DDE.

Application

4,4′-DDT may be used as a reference standard for the determination of the chlorinated pesticide:

• In water by solid-phase microextraction followed by gas chromatography (GC) coupled with an electron capture detector.
• In human biological samples by gas chromatography (GC) with mass spectrometry (MS) detector in tandem mode.

It may also be used as a standard to spike milk samples during extraction method, further followed by column chromatography to determine organochlorine pollutants.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

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

Safety Information

• pictograms: GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H301 + H311,H351,H372,H410
• pcodes: P202 - P260 - P273 - P280 - P301 + P310 - P302 + P352 + P312
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - STOT RE 1 Oral
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges