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34148

Metolachlor OA

PESTANAL®, analytical standard

Synonym(s):

BSTFA, TMCS, N-(2-Ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)oxalamic acid, [(2-Ethyl-6-methylphenyl)(2-methoxy-1-methylethyl)amino]oxo-acetic acid

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About This Item

Empirical Formula (Hill Notation):
C15H21NO4
CAS Number:
152019-73-3
Molecular Weight:
279.33
NACRES:
NA.24
PubChem Substance ID:
329754849
UNSPSC Code:
41116107
MDL number:
MFCD08702643
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Quality Level

100

grade

analytical standard

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

agriculture
environmental

format

neat

SMILES string

CCc1cccc(C)c1N(C(C)COC)C(=O)C(O)=O

InChI

1S/C15H21NO4/c1-5-12-8-6-7-10(2)13(12)16(11(3)9-20-4)14(17)15(18)19/h6-8,11H,5,9H2,1-4H3,(H,18,19)

InChI key

LNOOSYCKMKZOJB-UHFFFAOYSA-N

General description

Metolachlor is used for the control of broadleaf weeds and annual grasses primarily in corn, soybean, and sorghum. Active compounds of metolachlor pesticide may be converted by the target insects or plants or may be degraded in the environment to form the corresponding oxanillic (OA) acids. Metolachlor OA is one of the metabolite of metolachlor.

Application

Metolachlor OA may be used as an analytical reference standard for the determination of the analyte in water by solid phase extraction and liquid chromatography/electrospray ionization tandem mass spectroscopy (LC/ESI MS/MS).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
Reagent for trimethylsilyl (TMS).

Legal Information

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN6808
BCCJ7540
BCCF7275
BCCB4590
BCBW5460

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Josef Velisek et al.
The Science of the total environment, 643, 1456-1463 (2018-09-08)
The metolachlor OA is a metabolite of herbicide metolachlor and s-metolachlor. The objective of the present study was to assess the effect metolachlor OA on early life stages of marbled crayfish (Procambarus virginalis). The early life stages of marbled crayfish
Alzbeta Stara et al.
Chemosphere, 224, 616-625 (2019-03-09)
Increasing production of energy crops in Europe, mainly maize and rapeseed, has altered patterns of pesticide use in recent decades. The long-term effects of S-metolachlor (S-M) and of its metabolite metolachlor OA (M-OA) at the environmentally relevant concentration of 4.2 μg L-1
Robert A Yokley et al.
Analytical chemistry, 74(15), 3754-3759 (2002-08-15)
A Good Laboratory Practices (GLP) validated, multiresidue analytical method is presented for the determination of the chloroacetanilide herbicides metolachlor, acetochlor, and alachlor, the chloroacetamide herbicide dimethenamid, and their respective ethanesulfonic (ESA) and oxanillic (OA) acid degradates in ground and surface
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Global Trade Item Number

SKUGTIN
34148-10MG04061826754115