Imazapyr - analytical standard, ≥99.5% , CAS No.81334-34-1

CAS: 81334-34-1 Cat. No.: I101273 Molecular Weight: 261.28 Beilstein Registry Number: 5442754 EC Number: 617-219-8
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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
BBL010100 | Imazapyr, PESTANAL(R), analytical standard | SR-01000395021 | ()-Imazapyr | 2-(4,5-DIHYDRO-4-METHYL-4-(1-METHYLETHYL)-5-OXO-1H-IMIDAZOL- 2-YL)-3-PYRIDINECARBOXYLIC ACID | AC 243,997 | NCGC00160495-02 | (+/-)-Imazapyr | 2-[4-methyl-5-oxo-4-(pro
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
100mg
I101273-100mg
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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
BBL010100 | Imazapyr, PESTANAL(R), analytical standard | SR-01000395021 | ()-Imazapyr | 2-(4, 5-DIHYDRO-4-METHYL-4-(1-METHYLETHYL)-5-OXO-1H-IMIDAZOL- 2-YL)-3-PYRIDINECARBOXYLIC ACID | AC 243, 997 | NCGC00160495-02 | (+/-)-Imazapyr | 2-[4-methyl-5-oxo-4-(pro
Specifications & Purity
analytical standard, ≥99.5%
Storage
Room temperature
Shipped In
Normal
Grade
Analytical standard
Purity
≥99.5%
Names and Identifiers
Canonical SmilesCC(C)C1(C(=O)NC(=N1)C2=C(C=CC=N2)C(=O)O)C
IUPAC Name2-(4-methyl-5-oxo-4-propan-2-yl-1H-imidazol-2-yl)pyridine-3-carboxylic acid
InChIKeyCLQMBPJKHLGMQK-UHFFFAOYSA-N
INCHI1S/C13H15N3O3/c1-7(2)13(3)12(19)15-10(16-13)9-8(11(17)18)5-4-6-14-9/h4-7H,1-3H3,(H,17,18)(H,15,16,19)
Isomeric SMILES CC(C)C1(C(=O)NC(=N1)C2=C(C=CC=N2)C(=O)O)C
WGK Germany 2
RTECS US5682500
Molecular Weight 261.28
Beilstein 5442754
Reaxy-Rn 5442754
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=5442754&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
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives
Direct ParentAlpha amino acids and derivatives
Alternative Parents Pyridinecarboxylic acids  Imidazolyl carboxylic acids and derivatives  Imidazolinones  Heteroaromatic compounds  Propargyl-type 1,3-dipolar organic compounds  Monocarboxylic acids and derivatives  Carboxylic acids  Carboximidamides  Carboxamidines  Azacyclic compounds  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Alpha-amino acid or derivatives - Pyridine carboxylic acid - Pyridine carboxylic acid or derivatives - Imidazolyl carboxylic acid derivative - Imidazolinone - Pyridine - 2-imidazoline - Heteroaromatic compound - Azacycle - Organoheterocyclic compound - Carboxylic acid amidine - Carboxylic acid - Monocarboxylic acid or derivatives - Amidine - Carboximidamide - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organonitrogen compound - Organooxygen compound - Organic oxide - Hydrocarbon derivative - Carbonyl group - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as alpha amino acids and derivatives. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon), or a derivative thereof.
External Descriptors Imidazolinone herbicides
3D Structure
Interactive Chemical Structure Model





Associated Targets(non-human)
ALS Acetolactate synthase (354 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
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.

1 results found

Lot NumberCertificate TypeDateItem
K1826049Certificate of AnalysisJan 26, 2026 I101273
Chemical and Physical Properties
Melt Point(°C)169-173°C
Molecular Weight261.279 g/mol
XLogP31.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count3
Exact Mass261.111 Da
Monoisotopic Mass261.111 Da
Topological Polar Surface Area91.700 Ų
Heavy Atom Count19
Formal Charge0
Complexity433.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
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. Shengzheng Guo, Zongqiu Li, Shichao Du, Chenyang Zhao, Mengwei Wang, Xin Su, Songgu Wu.  (2021)  Thermodynamic analysis and molecular dynamic simulation of solid-liquid phase equilibrium of imazapyr in twelve pure organic solvents.  JOURNAL OF MOLECULAR LIQUIDS,      [PMID:] [10.1016/j.molliq.2021.115631]
2. Weili Yu, Yan Tian, Mengyu Guo, Shuping Tong, Chengshuai Li, Bingjie Zhang, Yongqiang Ma.  (2026)  Efficient Photocatalytic Elimination of Imidazolinone Herbicides by Bismuth-Based Photocatalyst BiOIO3.  MOLECULES,  31  (8): (1361).  [PMID:] [10.3390/molecules31081361]
Solution Calculators
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