WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 598780

CAS#: 168088-61-7

Description: Pyribenzoxim is one of the pyrimidinyl-oxy-benzoate herbicides.

Chemical Structure

CAS# 168088-61-7

Theoretical Analysis

MedKoo Cat#: 598780
Name: Pyribenzoxim
CAS#: 168088-61-7
Chemical Formula: C32H27N5O8
Exact Mass: 609.19
Molecular Weight: 609.590
Elemental Analysis: C, 63.05; H, 4.46; N, 11.49; O, 21.00

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales or click below button.
Note: Price will be listed if it is available in the future.

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Synonym: Pyribenzoxim; LGC-40863; LGC40863; LGC40863; Pyanchor;

IUPAC/Chemical Name: diphenylmethanone O-(2,6-bis((4,6-dimethoxypyrimidin-2-yl)oxy)benzoyl) oxime


InChi Code: InChI=1S/C32H27N5O8/c1-39-24-18-25(40-2)34-31(33-24)43-22-16-11-17-23(44-32-35-26(41-3)19-27(36-32)42-4)28(22)30(38)45-37-29(20-12-7-5-8-13-20)21-14-9-6-10-15-21/h5-19H,1-4H3


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 609.59 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Chang HR, Keum YS, Koo SJ, Moon JK, Kim K, Kim JH. Metabolism of a new herbicide, [(14)c]pyribenzoxim, in rice. J Agric Food Chem. 2011 Mar 9;59(5):1918-23. doi: 10.1021/jf1039469. Epub 2011 Feb 10. PubMed PMID: 21309510.

2: Liu KH, Moon JK, Sung HJ, Kang SH, Koo SJ, Lee HS, Kim JH. In vivo pharmacokinetics of pyribenzoxim in rats. Pest Manag Sci. 2001 Dec;57(12):1155-60. PubMed PMID: 11802604.

3: Chang HR, Koo SJ, Kim K, Ro HM, Moon JK, Kim YH, Kim JH. Soil metabolism of a new herbicide, [14C]Pyribenzoxim, under flooded conditions. J Agric Food Chem. 2007 Jul 25;55(15):6206-12. Epub 2007 Jun 26. PubMed PMID: 17592856.

4: Seo JS, Liu KH, Chung KH, Shin JS, Kim JH. Bioconcentration and depuration of pyribenzoxim in common carp (Cyprinus carpio). Bull Environ Contam Toxicol. 2002 May;68(5):617-22. PubMed PMID: 12068925.

5: Liu KH, Moon JK, Kang SH, Koo S, Lee HS, Kim JH. Identification of rat urinary and fecal metabolites of a new herbicide, pyribenzoxim. J Agric Food Chem. 2005 Aug 24;53(17):6713-7. PubMed PMID: 16104789.

6: Deng W, Yang Q, Zhang Y, Jiao H, Mei Y, Li X, Zheng M. Cross-resistance patterns to acetolactate synthase (ALS)-inhibiting herbicides of flixweed (Descurainia sophia L.) conferred by different combinations of ALS isozymes with a Pro-197-Thr mutation or a novel Trp-574-Leu mutation. Pestic Biochem Physiol. 2017 Mar;136:41-45. doi: 10.1016/j.pestbp.2016.08.006. Epub 2016 Aug 20. PubMed PMID: 28187829.