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TOPRAMEZONE

CAS No.
210631-68-8
Chemical Name:
TOPRAMEZONE
Synonyms
[3-(4,5-Dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)methanone;Methanone, [3-(4,5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)-;bas 670;Hsdb 7500;opramezone;Impact(TM);TOPRAMEZONE;Pyrthalonil;Topramezone 97%;Topramezone [iso]
CBNumber:
CB2501011
Molecular Formula:
C16H17N3O5S
Molecular Weight:
363.39
MDL Number:
MFCD09953760
MOL File:
210631-68-8.mol
Last updated:2025-12-11 10:35:38
Product description Number Pack Size Price
Topramezone PESTANAL 34225 100mg $415
Topramezone T542513 100mg $255
TOPRAMEZONE 95.00% PST0000929 5MG $497.22
More product size

TOPRAMEZONE Properties

Boiling point 590.5±60.0 °C(Predicted)
Density 1.49±0.1 g/cm3(Predicted)
solubility Chloroform (Slightly, Heated), Water (Slightly, Heated)
pka 6.35±0.50(Predicted)
form Solid
color Light yellow to yellow
InChI InChI=1S/C16H17N3O5S/c1-9-10(15(20)11-8-17-19(2)16(11)21)4-5-13(25(3,22)23)14(9)12-6-7-24-18-12/h4-5,8,21H,6-7H2,1-3H3
InChIKey IYMLUHWAJFXAQP-UHFFFAOYSA-N
SMILES C(C1=CC=C(S(C)(=O)=O)C(C2CCON=2)=C1C)(C1=C(O)N(C)N=C1)=O
LogP 0.957 (est)
FDA UNII W4934JAQ65
EPA Substance Registry System Methanone, [3-(4,5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)- (210631-68-8)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS08,GHS09
Signal word  Danger
Hazard statements  H360D-H410
Precautionary statements  P202-P273-P280-P308+P313-P391-P405
Hazard Codes  T,N
Risk Statements  61-50/53
Safety Statements  53-45-60-61
RIDADR  UN3077 9/PG 3
WGK Germany  1
Hazardous Substances Data 210631-68-8(Hazardous Substances Data)

TOPRAMEZONE price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 34225 Topramezone PESTANAL 210631-68-8 100mg $415 2025-07-31 Buy
TRC T542513 Topramezone 210631-68-8 100mg $255 2021-12-16 Buy
American Custom Chemicals Corporation PST0000929 TOPRAMEZONE 95.00% 210631-68-8 5MG $497.22 2021-12-16 Buy
Product number Packaging Price Buy
34225 100mg $415 Buy
T542513 100mg $255 Buy
PST0000929 5MG $497.22 Buy

TOPRAMEZONE Chemical Properties,Uses,Production

Description

Topramezone is a highly flexible post-emergent herbicide that's safe for use on all field and specialty maize regardless of trait.

Uses

Topramezone is a herbicide that belongs to the class of pyrazolones or benzoylpyrazoles. It can be used to control broad leaved weeds and grass weeds in maize crop protection.

Definition

ChEBI: 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 b 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 broa leaf weeds.

247922-29-8
2597-44-6
33641-15-5
210631-68-8
Synthesis of TOPRAMEZONE from 3-(3-Bromo-2-methyl-6-(methylsulfonyl)phenyl)-4,5-dihydroisoxazole and Formyl radical and 5-Hydroxy-1-methylpyrazole

TOPRAMEZONE Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 96)Suppliers
Supplier Tel Email Country ProdList Advantage
Huizhili (Changzhou) Life Technology Co., Ltd
+8613906110102 13906110102@139.com China 16 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250 1026@dideu.com China 20284 58
Hebei Xinsheng New Material Technology Co., LTD.
+86-16632316109 xinshengkeji@xsmaterial.com China 1085 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28172 58
Hubei xin bonus chemical co. LTD
86-13657291602 linda@hubeijusheng.com CHINA 22963 58
Finetech Industry Limited
+86-27-8746-5837 +8619945049750 info@finetechnology-ind.com China 9629 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418684 +8618949823763 sales@tnjchem.com China 25356 58
GIHI CHEMICALS CO.,LIMITED
+8618058761490 info@gihichemicals.com China 49937 58
SUZHOU SENFEIDA CHEMICAL CO.,LTD
+86-0512-83500002 +8618662433356 3899766280@qq.com China 26362 58
Wuhan Topule Biopharmaceutical Co., Ltd
+8618327326525 masar@topule.com China 8467 58

View Lastest Price from TOPRAMEZONE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Topramezone pictures 2025-11-26 Topramezone
210631-68-8
US $0.00 / kg 25kg 99% EX:20tons Huizhili (Changzhou) Life Technology Co., Ltd
TOPRAMEZONE pictures 2025-11-18 TOPRAMEZONE
210631-68-8
US $1.10 / g 1g 99.9% 100 Tons Min Dideu Industries Group Limited
TOPRAMEZONE pictures 2023-11-14 TOPRAMEZONE
210631-68-8
US $35.00-25.00 / kg 1kg 99% 20 Ton Hebei Xinsheng New Material Technology Co., LTD.
  • Topramezone pictures
  • Topramezone
    210631-68-8
  • US $0.00 / kg
  • 99%
  • Huizhili (Changzhou) Life Technology Co., Ltd
  • TOPRAMEZONE pictures
  • TOPRAMEZONE
    210631-68-8
  • US $1.10 / g
  • 99.9%
  • Dideu Industries Group Limited
  • TOPRAMEZONE pictures
  • TOPRAMEZONE
    210631-68-8
  • US $35.00-25.00 / kg
  • 99%
  • Hebei Xinsheng New Material Technology Co., LTD.
Impact(TM) TOPRAMEZONE bas 670 [3-(4,5-Dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)methanone Hsdb 7500 Topramezone [iso] Methanone, [3-(4,5-dihydro-3-isoxazolyl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)- Topramezone Solution in Acetonitrile, 100μg/mL opramezone Topramezone 97% 3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-(methylsulfonyl)phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)methanone [3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-(methylsulfonyl)... L17602500ALTopramezonE10μg/mLin Acetonitril Topramezone 10.0 μg/ml Acetonitrile Topramezone in Methanol Topramezone in Acetonitrile Topramezone 10 μg/mL in Acetonitrile Pyrthalonil 210631-68-8 API