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

MedKoo CAT#: 598569

CAS#: 55512-33-9

Description: Pyridate is a herbicide.

Chemical Structure

CAS# 55512-33-9

Theoretical Analysis

MedKoo Cat#: 598569
Name: Pyridate
CAS#: 55512-33-9
Chemical Formula: C19H23ClN2O2S
Exact Mass: 378.1169
Molecular Weight: 378.91
Elemental Analysis: C, 60.23; H, 6.12; Cl, 9.36; N, 7.39; O, 8.44; S, 8.46

Price and Availability

Size Price Availability Quantity
500.0mg USD 410.0 2 Weeks
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Synonym: Pyridate; CL 11344; CL-11344; CL11344; P1 3419; Pyron; Fenpyrate; Lentagran; Tough;

IUPAC/Chemical Name: O-(6-chloro-3-phenylpyridazin-4-yl) O-(octan-2-yl) carbonothioate


InChi Code: InChI=1S/C19H23ClN2O2S/c1-3-4-5-7-10-14(2)23-19(25)24-16-13-17(20)21-22-18(16)15-11-8-6-9-12-15/h6,8-9,11-14H,3-5,7,10H2,1-2H3


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

Preparing Stock Solutions

The following data is based on the product molecular weight 378.91 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

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1: Burghardt M, Friedmann A, Schreiber L, Riederer M. Comparison of sorption and diffusion by pyridate and its polar metabolite in isolated cuticular wax of Chenopodium album and Hordeum vulgare. J Agric Food Chem. 2005 Sep 7;53(18):7150-5. PubMed PMID: 16131123.

2: Pachinger A, Eisner E, Begutter H, Klus H. Determination of a metabolite of the herbicide pyridate in drinking and groundwater using high-performance liquid chromatography with amperometric detection. J Chromatogr. 1991 Oct 11;558(2):369-73. PubMed PMID: 1797812.

3: Lindner W, Ruckendorfer H. HPLC--residue analysis of the herbicide pyridate in cereals. Int J Environ Anal Chem. 1983;16(3):205-18. PubMed PMID: 6679538.

4: Oliveira FA, Reis LP, Soto-Blanco B, Melo MM. Pesticides residues in the Prochilodus costatus (Valenciennes, 1850) fish caught in the São Francisco River, Brazil. J Environ Sci Health B. 2015;50(6):398-405. doi: 10.1080/03601234.2015.1011946. PubMed PMID: 25844860.

5: Okubo T, Yokoyama Y, Kano K, Soya Y, Kano I. Estimation of estrogenic and antiestrogenic activities of selected pesticides by MCF-7 cell proliferation assay. Arch Environ Contam Toxicol. 2004 May;46(4):445-53. PubMed PMID: 15253041.

6: Kos K, Celar FA. Sensitivity of the entomopathogenic fungus Beauveria bassiana (Bals.-Criv.) Vuill. to selected herbicides. Pest Manag Sci. 2013 Jun;69(6):717-21. doi: 10.1002/ps.3427. Epub 2012 Nov 9. PubMed PMID: 23139237.

7: Patzoldt WL, Dixon BS, Tranel PJ. Triazine resistance in Amaranthus tuberculatus (Moq) Sauer that is not site-of-action mediated. Pest Manag Sci. 2003 Oct;59(10):1134-42. PubMed PMID: 14561071.

8: Wang J, Wotherspoon D. Determination of pesticides in apples by liquid chromatography with electrospray ionization tandem mass spectrometry and estimation of measurement uncertainty. J AOAC Int. 2007 Mar-Apr;90(2):550-67. PubMed PMID: 17474525.

9: Kello D. WHO drinking water quality guidelines for selected herbicides. Food Addit Contam. 1989;6 Suppl 1:S79-85. PubMed PMID: 2599158.

10: Lehotay SJ, de Kok A, Hiemstra M, Van Bodegraven P. Validation of a fast and easy method for the determination of residues from 229 pesticides in fruits and vegetables using gas and liquid chromatography and mass spectrometric detection. J AOAC Int. 2005 Mar-Apr;88(2):595-614. PubMed PMID: 15859089.

11: Wang J, Leung D. Determination of 142 pesticides in fruit- and vegetable-based infant foods by liquid chromatography/electrospray ionization-tandem mass spectrometry and estimation of measurement uncertainty. J AOAC Int. 2009 Jan-Feb;92(1):279-301. PubMed PMID: 19382587.


500.0mg / USD 410.0