Halosulfuron-methyl - analytical standard, ≥99.5% , CAS No.100784-20-1

CAS: 100784-20-1 Cat. No.: H109990 Molecular Weight: 434.81 EC Number: 600-130-3
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GRADE & PURITY Analytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. ≥99.5%
Synonyms
Halosulfuron-methyl|100784-20-1|Battalion|Sempra|Inpool|Sandea|Permit 75WG|MON 12000|Halosulfuron-methyl [ISO:BSI]|NC 319|1H-Pyrazole-4-carboxylic acid, 3-chloro-5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-, methyl ester|A 8
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
100mg
H109990-100mg
3

$105.90

$123.90
Save $18.00 (14.53%)
1g
H109990-1g
1

$569.90

$738.90
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5g
H109990-5g
1

$2,207.90

$2,575.90
Save $368.00 (14.29%)
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Why this grade

analytical standard, ≥99.5% Analytical standard for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Halosulfuron-methyl | 100784-20-1 | Battalion | Sempra | Inpool | Sandea | Permit 75WG | MON 12000 | Halosulfuron-methyl [ISO:BSI] | NC 319 | 1H-Pyrazole-4-carboxylic acid, 3-chloro-5-[[[[(4, 6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-, methyl ester | A 8
Specifications & Purity
analytical standard, ≥99.5%
Storage
Room temperature
Shipped In
Normal
Grade
Analytical standard
Purity
≥99.5%
Names and Identifiers
Canonical SmilesCN1C(=C(C(=N1)Cl)C(=O)OC)S(=O)(=O)NC(=O)NC2=NC(=CC(=N2)OC)OC
IUPAC Namemethyl 3-chloro-5-[(4,6-dimethoxypyrimidin-2-yl)carbamoylsulfamoyl]-1-methylpyrazole-4-carboxylate
InChIKeyFMGZEUWROYGLAY-UHFFFAOYSA-N
INCHI1S/C13H15ClN6O7S/c1-20-10(8(9(14)18-20)11(21)27-4)28(23,24)19-13(22)17-12-15-6(25-2)5-7(16-12)26-3/h5H,1-4H3,(H2,15,16,17,19,22)
Isomeric SMILES CN1C(=C(C(=N1)Cl)C(=O)OC)S(=O)(=O)NC(=O)NC2=NC(=CC(=N2)OC)OC
WGK Germany 3
RTECS UQ6392606
Molecular Weight 434.81
Reaxy-Rn 7783327
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=7783327&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassPyrazoles
Intermediate Tree Nodes Not available
Direct ParentPyrazole carboxylic acids and derivatives
Alternative Parents Sulfonylureas  Alkyl aryl ethers  Pyrimidines and pyrimidine derivatives  Aryl chlorides  Vinylogous halides  Vinylogous amides  Organosulfonic acids and derivatives  Aminosulfonyl compounds  Heteroaromatic compounds  Methyl esters  Propargyl-type 1,3-dipolar organic compounds  Azacyclic compounds  Carboximidic acids and derivatives  Monocarboxylic acids and derivatives  Organochlorides  Organic oxides  Hydrocarbon derivatives  Organopnictogen compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyrazole-4-carboxylic acid or derivatives - Alkyl aryl ether - Sulfonylurea - Aryl chloride - Aryl halide - Pyrimidine - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Sulfonyl - Heteroaromatic compound - Aminosulfonyl compound - Methyl ester - Vinylogous halide - Vinylogous amide - Carboxylic acid ester - Azacycle - Ether - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Carboxylic acid derivative - Carboximidic acid derivative - Monocarboxylic acid or derivatives - Organic oxygen compound - Organochloride - Organohalogen compound - Organonitrogen compound - Organopnictogen compound - Organooxygen compound - Organosulfur compound - Organic oxide - Hydrocarbon derivative - Organic nitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyrazole carboxylic acids and derivatives. These are heterocyclic compounds containing a pyrazole ring in which a hydrogen atom is replaced by a carboxylic acid group.
External Descriptors Sulfonylurea herbicides
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
A1704023Certificate of AnalysisDec 22, 2025 H109990
E2128176Certificate of AnalysisMar 09, 2023 H109990
E2128177Certificate of AnalysisMar 09, 2023 H109990
E2128178Certificate of AnalysisMar 09, 2023 H109990
Chemical and Physical Properties
Melt Point(°C)175-177oC
Molecular Weight434.810 g/mol
XLogP31.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count10
Rotatable Bond Count7
Exact Mass434.041 Da
Monoisotopic Mass434.041 Da
Topological Polar Surface Area172.000 Ų
Heavy Atom Count28
Formal Charge0
Complexity665.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Guang Yang, Jianqiang Zhang, Chunjuan Huang, Xin Song, Renjie Xu.  (2020)  Equilibrium Solubility Investigation and Thermodynamic Computational Modeling of Halosulfuron-methyl in a Series of Cosolvent Mixtures at a Temperature Range of 278.15–323.15 K.  JOURNAL OF CHEMICAL AND ENGINEERING DATA,      [PMID:] [10.1021/acs.jced.0c00633]
2. Xiaoxiao You, Ligang Chen.  (2015)  Analysis of sulfonylurea herbicides in grain samples using molecularly imprinted polymers on the surface of magnetic carbon nanotubes by extraction coupled with HPLC.  Analytical Methods,  (5): (1003-1012).  [PMID:] [10.1039/C5AY02759D]
Solution Calculators
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