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Details

Stereochemistry ACHIRAL
Molecular Formula C13H10ClN2O4S.Na
Molecular Weight 348.737
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PYRITHIOBAC-SODIUM

SMILES

[Na+].COC1=CC(OC)=NC(SC2=CC=CC(Cl)=C2C([O-])=O)=N1

InChI

InChIKey=CNILNQMBAHKMFS-UHFFFAOYSA-M
InChI=1S/C13H11ClN2O4S.Na/c1-19-9-6-10(20-2)16-13(15-9)21-8-5-3-4-7(14)11(8)12(17)18;/h3-6H,1-2H3,(H,17,18);/q;+1/p-1

HIDE SMILES / InChI

Molecular Formula Na
Molecular Weight 22.9898
Charge 1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C13H10ClN2O4S
Molecular Weight 325.748
Charge -1
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Pyrithiobac sodium (also known as PE350) is a carboxyphenylthiodimethoxypyrimidine derivative patented by Kumiai Chemical Industry Co., Ltd. and Ihara Chemical Industry Co., Ltd. as herbicide and commercialized for uses in cotton cultivation. Pyrithiobac acts as a potent inhibitor of Acetohydroxyacid synthase (AHAS), also known as acetolactate synthase, that catalyzes the first reaction in the pathway for synthesis of the branched-chain amino acids. Pyrithiobac is applied POST at 70 g/ha in cotton (1- to 2-leaf stage) for effective control of several broadleaf weeds such as Xatithium stmmarium, Ipomoea spp., Abutilon theophrasli, Sesbania exaltata (hemp sesbania), Salvia reflexa, Sida spinosa, Amaranthus spp., etc. When applied at this rate, wheat, soybean and grain sorghum may be rotated with cotton with no crop toxicity to these crops. Cotton is very tolerant of Pyrithiobac even at rates as high as 112 g/ha. It may also be applied PPI or PRE in cotton to control Cassia occidentalis, a troublesome broadleaf weed. Higher rates cause injury to cotton. However, caution may need to be exercised, as insecticides (malathion, fenvalerate, methomyl, chlorpyriphos, etc.) applied along with Pyrithiobac, as mixtures are likely to make cotton sensitive to the herbicide.

Approval Year

PubMed

PubMed

TitleDatePubMed
Multiple allelic forms of acetohydroxyacid synthase are responsible for herbicide resistance in Setaria viridis.
2009 Aug
Patents
Substance Class Chemical
Created
by admin
on Fri Dec 15 19:45:30 GMT 2023
Edited
by admin
on Fri Dec 15 19:45:30 GMT 2023
Record UNII
5M13LUJ9WY
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
PYRITHIOBAC-SODIUM
ISO  
Common Name English
STAPLE
Brand Name English
BENZOIC ACID, 2-CHLORO-6-((4,6-DIMETHOXY-2-PYRIMIDINYL)THIO)-, SODIUM SALT (1:1)
Common Name English
BENZOIC ACID, 2-CHLORO-6-((4,6-DIMETHOXY-2-PYRIMIDINYL)THIO)-, SODIUM SALT
Common Name English
PYRITHIOBAC SODIUM
Common Name English
PYRITHIOBAC SODIUM SALT [MI]
Common Name English
DPX-PE350
Code English
PYRITHIOBAC SODIUM SALT
MI  
Common Name English
PYRITHIOBAC-SODIUM [ISO]
Common Name English
STAPLE-85SP
Brand Name English
KIH-2031
Code English
Classification Tree Code System Code
EPA PESTICIDE CODE 78905
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
Code System Code Type Description
PUBCHEM
23682187
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
MESH
C401888
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
CAS
123343-16-8
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
MERCK INDEX
m9376
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY Merck Index
FDA UNII
5M13LUJ9WY
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
EPA CompTox
DTXSID8032673
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
ALANWOOD
pyrithiobac-sodium
Created by admin on Fri Dec 15 19:45:30 GMT 2023 , Edited by admin on Fri Dec 15 19:45:30 GMT 2023
PRIMARY
Related Record Type Details
PARENT -> SALT/SOLVATE