3-Nitrophthalic Anhydride - ≥97% , CAS No.641-70-3

CAS: 641-70-3 Cat. No.: N158919 Molecular Weight: 193.11 Beilstein Registry Number: 17486 EC Number: 211-373-6
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
Phthalic anhydride, 3-nitro- | 3-nitrophtalic acid anhydride | AI3-03720 | NSC 27006 | DTXSID0060939 | NSC27006 | NSC-27006 | 3-Nitrophthalic anhydride, 98% | 3-Nitrophthalic anhydride, purum, >=96.0% (NT) | 4-nitro-1,3-dihydro-2-benzofuran-1,3-dione | EN
Storage
Room temperature,Argon charged
Shipped In
Normal
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Size
Status
Price
Qty
5g
N158919-5g
5
$9.90
10g
N158919-10g
2
$10.90
25g
N158919-25g
1
$11.90
100g
N158919-100g
1
$13.90
500g
N158919-500g
1

$58.90

$88.90
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Why this grade

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

🌡

Storage & shipping

Room temperature,Argon charged 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.

📚

Literature proof

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

Specifications

Synonyms
Phthalic anhydride, 3-nitro- | 3-nitrophtalic acid anhydride | AI3-03720 | NSC 27006 | DTXSID0060939 | NSC27006 | NSC-27006 | 3-Nitrophthalic anhydride, 98% | 3-Nitrophthalic anhydride, purum, >=96.0% (NT) | 4-nitro-1, 3-dihydro-2-benzofuran-1, 3-dione | EN
Specifications & Purity
≥97%
Storage
Room temperature, Argon charged
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488182715
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488182715
Canonical SmilesC1=CC2=C(C(=C1)[N+](=O)[O-])C(=O)OC2=O
IUPAC Name4-nitro-2-benzofuran-1,3-dione
InChIKeyROFZMKDROVBLNY-UHFFFAOYSA-N
INCHI1S/C8H3NO5/c10-7-4-2-1-3-5(9(12)13)6(4)8(11)14-7/h1-3H
Isomeric SMILES C1=CC2=C(C(=C1)[N+](=O)[O-])C(=O)OC2=O
Molecular Weight 193.11
Beilstein 17486
Reaxy-Rn 179963
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=179963&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
ClassBenzofurans
SubclassBenzofuranones
Intermediate Tree Nodes Not available
Direct ParentPhthalic anhydrides
Alternative Parents Isobenzofuranones  Nitroaromatic compounds  Dicarboxylic acids and derivatives  Benzenoids  Carboxylic acid anhydrides  Propargyl-type 1,3-dipolar organic compounds  Oxacyclic compounds  Organic oxoazanium compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Phthalic_anhydride - Phthalic anhydride - Isobenzofuranone - Isocoumaran - Nitroaromatic compound - Dicarboxylic acid or derivatives - Benzenoid - Carboxylic acid anhydride - C-nitro compound - Organic nitro compound - Carboxylic acid derivative - Organic oxoazanium - Oxacycle - Allyl-type 1,3-dipolar organic compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organooxygen compound - Organonitrogen compound - Organic oxide - Hydrocarbon derivative - Organic oxygen compound - Organopnictogen compound - Organic nitrogen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phthalic anhydrides. These are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione.
External Descriptors Not available
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.

15 results found

Lot NumberCertificate TypeDateItem
I1820043Certificate of AnalysisApr 15, 2026 N158919
H2127499Certificate of AnalysisJun 06, 2025 N158919
H2127500Certificate of AnalysisJun 06, 2025 N158919
C2406175Certificate of AnalysisFeb 26, 2024 N158919
C2406176Certificate of AnalysisFeb 26, 2024 N158919
C2406177Certificate of AnalysisFeb 26, 2024 N158919
C2406178Certificate of AnalysisFeb 26, 2024 N158919
C2406179Certificate of AnalysisFeb 26, 2024 N158919
C2406180Certificate of AnalysisFeb 26, 2024 N158919
J2531015Certificate of AnalysisFeb 26, 2024 N158919
B2318451Certificate of AnalysisJul 28, 2022 N158919
K2222635Certificate of AnalysisJul 28, 2022 N158919
K2222636Certificate of AnalysisJul 28, 2022 N158919
K2222637Certificate of AnalysisJul 28, 2022 N158919
K2222638Certificate of AnalysisJul 28, 2022 N158919

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Chemical and Physical Properties
SolubilityMay decompose in water.
SensitivityMoisture sensitive
Melt Point(°C)162 °C
Molecular Weight193.110 g/mol
XLogP31.100
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass193.001 Da
Monoisotopic Mass193.001 Da
Topological Polar Surface Area89.200 Ų
Heavy Atom Count14
Formal Charge0
Complexity307.000
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. Xing Liu, Zhenhong Xiao, Xianyong Liu, Yuling Liu, Jianqing Zhao, Shumei Liu.  (2023)  Design and synthesis of epoxy prepolymer containing aromatic imide structures for thermoset with excellent thermal, mechanical and dielectric properties.  CHEMICAL ENGINEERING SCIENCE,      [PMID:] [10.1016/j.ces.2023.119149]
2. Yuanyuan Su, Ying Zhang, Ronglan Zhang, Fei Yang, Jianshe Zhao.  (2018)  Synthesis and performance evaluation of binuclear metal phthalocyanines as high-efficiency electrocatalysts for Li/SOCl2 batteries.  JOURNAL OF MATERIALS RESEARCH,  33  (16): (2376-2384).  [PMID:] [10.1557/jmr.2018.238]
Solution Calculators
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