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Merck
CN

35484

Supelco

4,4′-DDA

PESTANAL®, analytical standard

Synonym(s):

2,2-Bis(4-chlorophenyl)acetic acid

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About This Item

Empirical Formula (Hill Notation):
C14H10Cl2O2
CAS Number:
83-05-6
Molecular Weight:
281.13
Beilstein:
1913593
EC Number:
201-451-8
MDL number:
MFCD00004248
UNSPSC Code:
41116107
PubChem Substance ID:
329755169

Key Documents

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grade

analytical standard

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

agriculture
environmental

format

neat

SMILES string

OC(=O)C(c1ccc(Cl)cc1)c2ccc(Cl)cc2

InChI

1S/C14H10Cl2O2/c15-11-5-1-9(2-6-11)13(14(17)18)10-3-7-12(16)8-4-10/h1-8,13H,(H,17,18)

InChI key

YIOCIFXUGBYCJR-UHFFFAOYSA-N

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Application

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

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302 + H312 + H332,H351

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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C E Lundholm et al.
Archives of toxicology, 65(7), 570-574 (1991-01-01)
A series of chlorinated hydrocarbons of interest in environmental toxicology were investigated concerning their effects on human platelet aggregation. Most potent in inhibiting platelet aggregation were p,p'-DDE and Arochlor 1242. Aggregation induced by arachidonic acid (1 mM) was more sensitive
Nelson N Orie et al.
Cardiovascular research, 69(1), 107-115 (2005-09-27)
We investigated the role of the inward rectifier potassium (KIR) channel and the cyclic AMP-dependent pathway in mediating vasorelaxation induced by the prostacyclin analogue cicaprost. Small vessel myography was used to assess responses to cicaprost in segments of rat tail
C Zhang et al.
Pharmacological research, 38(6), 413-417 (1999-02-17)
The cardiovascular activity of 14-deoxy-11,12-didehydroandrographolide (DDA) from Andrographis paniculata (Burm.f.) Nees (Acanthaceae) was elucidated in anaesthetised Sprague-Dawley (SD) rats and isolated rat right atria. In anaesthetised rats, DDA produced significant falls in mean arterial blood pressure (MAP) and heart rate
C A Kraaijeveld et al.
International archives of allergy and applied immunology, 79(1), 86-89 (1986-01-01)
The modulation by the interferon (IFN) inducers poly I:C and Newcastle disease virus (NDV) of the effector phase of adjuvant-enhanced delayed-type hypersensitivity (DH) was studied in mice. A strongly enhanced DH was induced in mice to ultraviolet (UV) light inactivated
Zhenshan Chen et al.
International journal of toxicology, 28(6), 528-533 (2009-12-08)
DDT metabolism in humans yields DDA as the principal urinary metabolite and potential exposure biomarker. A method for DDA analysis in human urine was developed using pentafluorobenzyl bromide and diisopropylethyl amine. Dried hexane extracts were reacted for 1 hour at
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