CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Light beige liquid; Technical product: White odorless solid; [HSDB] |
|---|---|
| Color/Form | Light beige liquid |
| Odor | Aromatic |
| Density | 1.13 g/cu cm at 20 °C |
| pH | pH = 3.9 (1% dispersion in water) |
| Other Experimental Properties | Chemical/physical properties of technical Topramezone. [Table#7168] |
| Chemical Classes | Pesticides -> Herbicides, Other |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. |
COMPUTED DESCRIPTORS
| Molecular Weight | 363.4 g/mol |
|---|---|
| XLogP3 | 0.9 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 4 |
| Exact Mass | 363.08889182 g/mol |
| Monoisotopic Mass | 363.08889182 g/mol |
| Topological Polar Surface Area | 114 Ų |
| Heavy Atom Count | 25 |
| Formal Charge | 0 |
| Complexity | 752 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Topramezone is an aromatic ketone that is phenyl 1H-pyrazol-4-yl ketone in which the pyrazolyl group is substituted at positions 1 and 5 by methyl and hydroxy groups, respectively, and in which the phenyl group is substituted at positions 2, 3, and 4 by methyl, 4,5-dihydro-1,2-oxazol-3-yl, and methylsulfonyl groups, respectively. A potent inhibitor of 4-hydroxyphenylpyruvate dioxygenase (HPPD) that is rapily metabolised by corn to non-active substances, it is used as a herbicide for the treatment of broadleaf weeds. It has a role as a herbicide, an agrochemical, an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor and a carotenoid biosynthesis inhibitor. It is a sulfone, a member of isoxazoles, an aromatic ketone and a pyrazolone.