Pyroxasulfone
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MedKoo CAT#: 574854

CAS#: 447399-55-5

Description: Pyroxasulfone is an inhibitor of very-long-chain fatty acid biosynthesis. Pyroxasulfone is used to control grass weed species in pre-emergence in major field crops.


Chemical Structure

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Pyroxasulfone
CAS# 447399-55-5

Theoretical Analysis

MedKoo Cat#: 574854
Name: Pyroxasulfone
CAS#: 447399-55-5
Chemical Formula: C12H14F5N3O4S
Exact Mass: 391.0625
Molecular Weight: 391.31
Elemental Analysis: C, 36.83; H, 3.61; F, 24.28; N, 10.74; O, 16.35; S, 8.19

Price and Availability

Size Price Availability Quantity
5.0mg USD 235.0 2 Weeks
25.0mg USD 455.0 2 Weeks
100.0mg USD 945.0 2 Weeks
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Synonym: KIH 485; Sakura; Sakura 850 WG; Sakura 85WG; Pyroxasulfone

IUPAC/Chemical Name: 3-[[[5-(Difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl]sulfonyl]-4,5-dihydro-5,5-dimethyl-isoxazole

InChi Key: CASLETQIYIQFTQ-UHFFFAOYSA-N

InChi Code: InChI=1S/C12H14F5N3O4S/c1-11(2)4-7(19-24-11)25(21,22)5-6-8(12(15,16)17)18-20(3)9(6)23-10(13)14/h10H,4-5H2,1-3H3

SMILES Code: CC1(C)CC(S(=O)(CC2=C(OC(F)F)N(C)N=C2C(F)(F)F)=O)=NO1

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: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 391.31 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. Nakatani M, Yamaji Y, Honda H, Uchida Y. Development of the novel pre-emergence herbicide pyroxasulfone. J Pestic Sci. 2016 Aug 20;41(3):107-112. doi: 10.1584/jpestics.J16-05. PMID: 30363083; PMCID: PMC6140635.