Paclobutrazol - analytical standard, ≥99% , CAS No.76738-62-0

CAS: 76738-62-0 Cat. No.: P109932 Molecular Weight: 293.79 EC Number: 616-379-6
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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%
Synonyms
CHEBI:139345 | Paclobutrazol 100 microg/mL in Acetonitrile | ?-tert-Butyl-?-(4-chlorobenzyl)-1H-1,2,4-triazole-1-ethanol (Paclobutrazol) | alpha-tert-Butyl-beta-(4-chlorobenzyl)-1H-1,2,4-triazole-1-ethanol | Paclobutrazol 1000 microg/mL in Acetone | Paclo
Storage
Desiccated,Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
250mg
P109932-250mg
5

$108.90

$127.90
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Why this grade

analytical standard, ≥99% Analytical standard for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Desiccated,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 11 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
CHEBI:139345 | Paclobutrazol 100 microg/mL in Acetonitrile | ?-tert-Butyl-?-(4-chlorobenzyl)-1H-1, 2, 4-triazole-1-ethanol (Paclobutrazol) | alpha-tert-Butyl-beta-(4-chlorobenzyl)-1H-1, 2, 4-triazole-1-ethanol | Paclobutrazol 1000 microg/mL in Acetone | Paclo
Specifications & Purity
analytical standard, ≥99%
Storage
Desiccated, Room temperature
Shipped In
Normal
Grade
Analytical standard
Purity
≥99%
Names and Identifiers
Pubchem Sid504757425
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504757425
Canonical SmilesCC(C)(C)C(C(CC1=CC=C(C=C1)Cl)N2C=NC=N2)O
IUPAC Name(2R,3R)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol
InChIKeyRMOGWMIKYWRTKW-KGLIPLIRSA-N
INCHI1S/C15H20ClN3O/c1-15(2,3)14(20)13(19-10-17-9-18-19)8-11-4-6-12(16)7-5-11/h4-7,9-10,13-14,20H,8H2,1-3H3/t13-,14+/m1/s1
Isomeric SMILES CC(C)(C)[C@H]([C@@H](CC1=CC=C(C=C1)Cl)N2C=NC=N2)O
UN Number 1325
Molecular Weight 293.79
Reaxy-Rn 885218
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=885218&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ 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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassPhenethylamines
Intermediate Tree Nodes Not available
Direct ParentAmphetamines and derivatives
Alternative Parents Chlorobenzenes  Aryl chlorides  Triazoles  Heteroaromatic compounds  Secondary alcohols  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organochlorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Amphetamine or derivatives - Chlorobenzene - Halobenzene - Aryl chloride - Aryl halide - Azole - Heteroaromatic compound - 1,2,4-triazole - Secondary alcohol - Azacycle - Organoheterocyclic compound - Organochloride - Organohalogen compound - Organic nitrogen compound - Alcohol - Hydrocarbon derivative - Organopnictogen compound - Organic oxygen compound - Organonitrogen compound - Organooxygen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as amphetamines and derivatives. These are organic compounds containing or derived from 1-phenylpropan-2-amine.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

2 results found

Lot NumberCertificate TypeDateItem
H2408406Certificate of AnalysisMay 19, 2026 P109932
I2122239Certificate of AnalysisJun 16, 2023 P109932
Chemical and Physical Properties
SensitivityLight sensitive.
Melt Point(°C)165-166°C
Molecular Weight293.790 g/mol
XLogP33.200
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count5
Exact Mass293.129 Da
Monoisotopic Mass293.129 Da
Topological Polar Surface Area50.900 Ų
Heavy Atom Count20
Formal Charge0
Complexity300.000
Isotope Atom Count0
Defined Atom Stereocenter Count2
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Jiaxin Zhang, Tingting Feng, Jiayu Zhang, Ning Liang, Longshan Zhao.  (2021)  Fluorescence assay for the sensitive detection of fipronil based on an “on–off” oxidized SWCNH/aptamer sensor.  Analytical Methods,  13  (29): (3282-3291).  [PMID:34226905] [10.1039/D1AY00769F]
2. Yu Kunzi, Liu Wei, Zhang Nanping, Cheng Xianlong, Zhou Shiyu, Zuo Tiantian, Kang Shuai, Wei Feng, Ma Shuangcheng.  (2021)  A Novel Method to Identify Three Quality Grades of Herbal Medicine Ophiopogonis Radix by Microscopic Quantification.  Frontiers in Pharmacology,      [PMID:33584266] [10.3389/fphar.2020.591310]
3. Jing Zhao, Zhaorui Meng, Zexin Zhao, Longshan Zhao.  (2019)  Ultrasound-assisted deep eutectic solvent as green and efficient media combined with functionalized magnetic multi-walled carbon nanotubes as solid-phase extraction to determine pesticide residues in food products.  FOOD CHEMISTRY,      [PMID:31835214] [10.1016/j.foodchem.2019.125863]
4. Yulong Wang, Junli Xu, Yulou Qiu, Pan Li, Beibei Liu, Lifei Yang, Bogdan Barnych, Bruce D. Hammock, Cunzheng Zhang.  (2019)  Highly Specific Monoclonal Antibody and Sensitive Quantum Dot Beads-Based Fluorescence Immunochromatographic Test Strip for Tebuconazole Assay in Agricultural Products.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:31356079] [10.1021/acs.jafc.9b02832]
5. Peng He, Liping Zhu, Xin Zhou, Xuan Fu, Yu Zhang, Peng Zhao, Bin Jiang, Huiqin Wang, Guanghui Xiao.  (2024)  Gibberellin acid promotes single-celled fiber elongation through the activation of two signaling cascades in cotton.  DEVELOPMENTAL CELL,      [PMID:38359829] [10.1016/j.devcel.2024.01.018]
6. Zhihui Guo, Mingya Deng, Wenwen Fang, Kang Zheng, Min Liao, Yulong Wang, Qingkui Fang.  (2024)  Quantitative determination of prothioconazole in wheat grain, soybean, and pond water based on a polyclonal antibody.  Analytical Methods,      [PMID:38855900] [10.1039/D4AY00441H]
7. Rui Cheng, Yiqun Wan, Xuejin Mao, Hao Wan, Fan Liu, Lan Guo, Bingzhen Zhang.  (2024)  Regulating the defects of MIL-101(Cr) for the efficient and simultaneous determination of eleven plant growth regulators in fresh fruit juice.  FOOD CHEMISTRY,      [PMID:38341916] [10.1016/j.foodchem.2024.138666]
8. Qingqing Zhang, Xuejin Mao, Changrong Yuan, Jiexue Zhao, Hui Hu, Aiping Yan, Yuanxing Wang, Weiming Xiao.  (2022)  A simplified dispersive solid-phase extraction using a shaped zirconium-based metal–organic framework: Constructing a novel, facile and efficient method for detecting plant growth regulators in citrus fruits.  FOOD CHEMISTRY,      [PMID:36410219] [10.1016/j.foodchem.2022.134862]
9. Tailong Wei, Xiao Chen, Chong Cai, Yuanzhen Guo, Mengjun Zhou, Qiannan Gao, Qinghua He.  (2025)  SpyTagged Mimotope Peptide Mediated Competitive Antigen-Based Rapid Quantitative Immunoassays for Uniconazole Residue.  Foods,  14  (24):   [PMID:41465064] [10.3390/foods14244358]
10. Yan Zhou, Jinlong Wang, Wangni Meng, Lian Xia, Yue Tang, Jianli Zhou, Yuangen Wu, Pengcheng Yan.  (2025)  Smartphone-assisted colorimetric aptasensor for detecting acetamiprid residue in food based on the enhanced laccase-mimic activity of spherical Ag2O nanoparticles.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.116715]
11. Xiaowen Hou, Shengnan Jiang, XueLian Qin, Yuhao Xiong, Zhengyi Chen.  (2026)  Rapid, Simple and Matrix-Versatile Determination of Paclobutrazol in Complex Samples Using Salting-Out Assisted Liquid–Liquid Extraction Preconcentration and High-Performance Liquid Chromatography With Ultraviolet Detection.  Separation Science Plus,  (4): (e70218).  [PMID:] [10.1002/sscp.70218]
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