N-tert-Butyl-α-(4-pyridyl-1-oxide)nitrone(POBN) - ≥98%(HPLC) , CAS No.66893-81-0

CAS: 66893-81-0 Cat. No.: N159635 Molecular Weight: 194.23
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)
Synonyms
POBN | AS-55806 | DTXSID60217036 | N-TERT-BUTYL-.ALPHA.-(4-PYRIDYL-1-OXIDE) NITRONE | tert-butyl-[(1-oxidopyridin-4-ylidene)methyl]-oxoazanium | (Z)-2-methyl-N-((1-oxidopyridin-4-yl)methylene)propan-2-amine oxide | AKOS025394798 | HY-114713 | 2140SM8Q5O |
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100mg
N159635-100mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$43.90
500mg
N159635-500mg
1
$129.90
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Why this grade

≥98%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 8 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
POBN | AS-55806 | DTXSID60217036 | N-TERT-BUTYL-.ALPHA.-(4-PYRIDYL-1-OXIDE) NITRONE | tert-butyl-[(1-oxidopyridin-4-ylidene)methyl]-oxoazanium | (Z)-2-methyl-N-((1-oxidopyridin-4-yl)methylene)propan-2-amine oxide | AKOS025394798 | HY-114713 | 2140SM8Q5O |
Specifications & Purity
≥98%(HPLC)
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%(HPLC)
Names and Identifiers
Canonical SmilesCC(C)(C)[N+](=CC1=CC=[N+](C=C1)[O-])[O-]
IUPAC NameN-tert-butyl-1-(1-oxidopyridin-1-ium-4-yl)methanimine oxide
InChIKeyRNRMWTCECDHNQU-WQLSENKSSA-N
INCHI1S/C10H14N2O2/c1-10(2,3)12(14)8-9-4-6-11(13)7-5-9/h4-8H,1-3H3/b12-8-
Isomeric SMILES CC(C)(C)/[N+](=C/C1=CC=[N+](C=C1)[O-])/[O-]
WGK Germany 3
Molecular Weight 194.23
Reaxy-Rn 1453764
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1453764&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.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyridines and derivatives
SubclassPyridinium derivatives
Intermediate Tree Nodes Not available
Direct ParentPyridinium derivatives
Alternative Parents Heteroaromatic compounds  Shiff bases  Nitrones  Propargyl-type 1,3-dipolar organic compounds  Azacyclic compounds  Organic salts  Organic oxides  Hydrocarbon derivatives  Organic cations  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyridinium - Heteroaromatic compound - Nitrone - Shiff base - Allyl-type 1,3-dipolar organic compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Azacycle - Organic nitrogen compound - Organic oxide - Organonitrogen compound - Organic salt - Organic oxygen compound - Hydrocarbon derivative - Organic cation - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyridinium derivatives. These are compounds containing a pyridinium ring, which is the cationic form of pyridine.
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.

7 results found

Lot NumberCertificate TypeDateItem
L2515614Certificate of AnalysisDec 06, 2025 N159635
L2515615Certificate of AnalysisDec 06, 2025 N159635
E2108163Certificate of AnalysisFeb 07, 2025 N159635
E2512111Certificate of AnalysisJul 17, 2024 N159635
H2408377Certificate of AnalysisJul 17, 2024 N159635
H2408378Certificate of AnalysisJul 17, 2024 N159635
A2429353Certificate of AnalysisMar 31, 2021 N159635
Chemical and Physical Properties
SolubilitySolubility in Methanol almost transparency;solubility water: soluble 10 mg/mL, clear, colorless to faintly yellow
SensitivityHeat sensitive;Light sensitive
Melt Point(°C)183-185°C
Molecular Weight194.230 g/mol
XLogP3-0.200
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count2
Exact Mass194.106 Da
Monoisotopic Mass194.106 Da
Topological Polar Surface Area54.200 Ų
Heavy Atom Count14
Formal Charge0
Complexity213.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Yu Chen, Xiaodi Hao, Zhentan Lu, Dong Wang.  (2023)  Near-IR-Regulated Composite Hydrogel with Real-Time Infection Monitoring and a Combined Antibacterial Effect for Efficient Wound Management.  ACS Applied Materials & Interfaces,      [PMID:37584530] [10.1021/acsami.3c08259]
2. Hongkai Xie, Hui Chen, Linrui Yuechen, Fengjiao Fan.  (2022)  Effects of Different Antioxidants of Bamboo Leaves Treatments on Lipid Oxidation of Scallop (Argopecten irradians) Adductor Muscle During Hot Air Drying.  Journal of Aquatic Food Product Technology,      [PMID:] [10.1080/10498850.2022.2119910]
3. Hongkai Xie, Chenlinrui Yue, Fengjiao Fan.  (2022)  Different tea polyphenol treatments on lipid oxidation of scallop (Argopecten irradians) adductor muscle during hot air drying.  JOURNAL OF FOOD PROCESSING AND PRESERVATION,  46  (6): (e16534).  [PMID:] [10.1111/jfpp.16534]
4. Dan Xu, Jianfeng Li, Boyang Li, Huacheng Zhao, Hanghang Zhu, Jinfang Kou, Fengwei Zhang, Zhengping Dong, Jiantai Ma.  (2022)  Selective oxidation of alcohols to high value-added carbonyl compounds using air over Co-Co3O4@NC catalysts.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2022.134545]
5. Shenyu Lan, Jinxi Feng, Ya Xiong, Shuanghong Tian, Shengwei Liu, Lingjun Kong.  (2017)  Performance and Mechanism of Piezo-Catalytic Degradation of 4-Chlorophenol: Finding of Effective Piezo-Dechlorination.  ENVIRONMENTAL SCIENCE & TECHNOLOGY,      [PMID:28447779] [10.1021/acs.est.6b06426]
6. Zixiong Song, Ying Jing, Xiaoxiao Wei, Haizhen Li, Jianhua Xie, Mingyue Shen.  (2025)  Mechanistic insights into advanced glycation end products production in glucose-lysine model system involved with ascorbic acid.  FOOD CHEMISTRY,      [PMID:39914352] [10.1016/j.foodchem.2025.143178]
7. Guan Meng, Cheng Kai, Xie Xiao-Ting, Li Yong, Ma Meng-Wen, Zhang Bin, Chen Si, Chen Wei, Liu Bo, Fan Jin-Xuan, Zhao Yuan-Di.  (2024)  Regulating copper homeostasis of tumor cells to promote cuproptosis for enhancing breast cancer immunotherapy.  Nature Communications,  15  (1): (1-17).  [PMID:39567558] [10.1038/s41467-024-54469-7]
8. Meng Dong, Feng Liang, Shuang Cui, Bing-Bing Mao, Xu-Hui Huang, Lei Qin.  (2023)  Insights into the effects of steaming on organoleptic quality of salmon (Salmo salar) integrating multi-omics analysis and electronic sensory system.  FOOD CHEMISTRY,      [PMID:37741235] [10.1016/j.foodchem.2023.137372]
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