2,3-Dimethyl-4-nitropyridine N-Oxide - ≥97% , CAS No.37699-43-7

CAS: 37699-43-7 Cat. No.: N135488 Molecular Weight: 168.15 Beilstein Registry Number: 20(5)6,18 EC Number: 609-469-1
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
Lansoprazole Impurity 21 | SCHEMBL539611 | 2,3-dimethyl-4-nitropyridin-N-oxide | 4-Nitro-2,3-dimethylpyridine N-oxide | Pyridine, 2,3-dimethyl-4-nitro-, 1-oxide | 2,3-dimethyl-4-nitro-1-oxido-pyridin-1-ium | 2,3-dimethyl-4-nitro-1-oxidopyridin-1-ium | EN3
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
N135488-1g
3

$9.90

$14.90
Save $5.00 (33.56%)
5g
N135488-5g
2

$16.90

$25.90
Save $9.00 (34.75%)
25g
N135488-25g
2

$21.90

$32.90
Save $11.00 (33.43%)
100g
N135488-100g
2

$50.90

$76.90
Save $26.00 (33.81%)
500g
N135488-500g
1

$190.90

$286.90
Save $96.00 (33.46%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Argon charged,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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Lansoprazole Impurity 21 | SCHEMBL539611 | 2, 3-dimethyl-4-nitropyridin-N-oxide | 4-Nitro-2, 3-dimethylpyridine N-oxide | Pyridine, 2, 3-dimethyl-4-nitro-, 1-oxide | 2, 3-dimethyl-4-nitro-1-oxido-pyridin-1-ium | 2, 3-dimethyl-4-nitro-1-oxidopyridin-1-ium | EN3
Specifications & Purity
≥97%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid504757321
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504757321
Canonical SmilesCC1=C(C=C[N+](=C1C)[O-])[N+](=O)[O-]
IUPAC Name2,3-dimethyl-4-nitro-1-oxidopyridin-1-ium
InChIKeyCFMTVTYBZMKULI-UHFFFAOYSA-N
INCHI1S/C7H8N2O3/c1-5-6(2)8(10)4-3-7(5)9(11)12/h3-4H,1-2H3
Isomeric SMILES CC1=C(C=C[N+](=C1C)[O-])[N+](=O)[O-]
WGK Germany 3
RTECS UT2807000
Molecular Weight 168.15
Beilstein 20(5)6,18
Reaxy-Rn 1569438
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1569438&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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic 1,3-dipolar compounds
ClassAllyl-type 1,3-dipolar organic compounds
SubclassOrganic nitro compounds
Intermediate Tree Nodes C-nitro compounds
Direct ParentNitroaromatic compounds
Alternative Parents Methylpyridines  Pyridinium derivatives  Heteroaromatic compounds  Propargyl-type 1,3-dipolar organic compounds  Organic oxoazanium compounds  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Nitroaromatic compound - Methylpyridine - Pyridine - Pyridinium - Heteroaromatic compound - Azacycle - Organoheterocyclic compound - Propargyl-type 1,3-dipolar organic compound - Organic oxoazanium - Organopnictogen compound - Hydrocarbon derivative - Organic oxygen compound - Organic nitrogen compound - Organonitrogen compound - Organic oxide - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as nitroaromatic compounds. These are c-nitro compounds where the nitro group is C-substituted with an aromatic group.
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.

4 results found

Lot NumberCertificate TypeDateItem
C2222094Certificate of AnalysisOct 21, 2025 N135488
C2222102Certificate of AnalysisOct 21, 2025 N135488
C2222103Certificate of AnalysisOct 21, 2025 N135488
F1701084Certificate of AnalysisJan 18, 2023 N135488
Chemical and Physical Properties
SensitivityHygroscopic
Melt Point(°C)92 °C
Molecular Weight168.150 g/mol
XLogP30.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass168.053 Da
Monoisotopic Mass168.053 Da
Topological Polar Surface Area71.300 Ų
Heavy Atom Count12
Formal Charge0
Complexity180.000
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
Solution Calculators
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