5-Aminoisophthalic acid - ≥98% , CAS No.99-31-0

CAS: 99-31-0 Cat. No.: A107450 Molecular Weight: 181.15 Beilstein Registry Number: 2805628 EC Number: 202-748-5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
MFCD00002522 | STR06298 | 1,3-Benzenedicarboxylic acid, 5-amino- | HMS1775F17 | 5-Aminoisophthalic acid | 5-amino-isophthalic acid | 5-Amino-1,3-isophthalic acid | UNII-5R25Y7Y34D | Z56755834 | 5-Aminobenzene-1,3-dicarboxylic acid | 5-AMINO-1,3-BENZENEDIC
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
10g
A107450-10g
1
$9.90
25g
A107450-25g
4
$14.90
100g
A107450-100g
7
$38.90
500g
A107450-500g
1
$142.90
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Why this grade

≥98% 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 39 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

5-Aminoisophthalic acid (AIPA) can be used as a starting material to prepare:

Poly(5-aminoisophthalic acid) by oxidative polymerization reaction.

Poly(benzimidazole-co-aniline) (PBIANI) by condensation polymerization with 3,3′-diaminobenzidine via poly(5-aminoisophthalic acid) as a key intermediate.

It can also be used as a blended material with polyvinylalcohol to prepare silica-functionalized composite membranes for diffusion dialysis applications. AIPA based metal-organic framework (MOF) can be modified with various functional groups for different applications.

Specifications

Synonyms
MFCD00002522 | STR06298 | 1, 3-Benzenedicarboxylic acid, 5-amino- | HMS1775F17 | 5-Aminoisophthalic acid | 5-amino-isophthalic acid | 5-Amino-1, 3-isophthalic acid | UNII-5R25Y7Y34D | Z56755834 | 5-Aminobenzene-1, 3-dicarboxylic acid | 5-AMINO-1, 3-BENZENEDIC
Specifications & Purity
≥98%
Storage
Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid488183862
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488183862
Canonical SmilesC1=C(C=C(C=C1C(=O)O)N)C(=O)O
IUPAC Name5-aminobenzene-1,3-dicarboxylic acid
InChIKeyKBZFDRWPMZESDI-UHFFFAOYSA-N
INCHI1S/C8H7NO4/c9-6-2-4(7(10)11)1-5(3-6)8(12)13/h1-3H,9H2,(H,10,11)(H,12,13)
Isomeric SMILES C1=C(C=C(C=C1C(=O)O)N)C(=O)O
WGK Germany 3
Molecular Weight 181.15
Beilstein 2805628
Reaxy-Rn 2805628
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2805628&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.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Phthalic acid and derivatives
Direct ParentM-phthalic acid and derivatives
Alternative Parents Aminobenzoic acids  Benzoic acids  Benzoyl derivatives  Aniline and substituted anilines  Dicarboxylic acids and derivatives  Amino acids  Carboxylic acids  Primary amines  Organopnictogen compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Meta_phthalic_acid - Aminobenzoic acid - Aminobenzoic acid or derivatives - Benzoic acid - Aniline or substituted anilines - Benzoyl - Dicarboxylic acid or derivatives - Amino acid - Amino acid or derivatives - Carboxylic acid derivative - Carboxylic acid - Organic oxide - Organopnictogen compound - Organonitrogen compound - Organooxygen compound - Primary amine - Amine - Organic oxygen compound - Organic nitrogen compound - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as m-phthalic acid and derivatives. These are aromatic compounds containing a benzene ring bearing a carboxylic acid group at ring carbon atoms 1 and 2.
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.

27 results found

Lot NumberCertificate TypeDateItem
G2226049Certificate of AnalysisMay 09, 2026 A107450
G2226047Certificate of AnalysisMay 09, 2026 A107450
D2623757Certificate of AnalysisMar 19, 2026 A107450
D2623756Certificate of AnalysisMar 19, 2026 A107450
D2623754Certificate of AnalysisMar 19, 2026 A107450
K2519065Certificate of AnalysisNov 26, 2025 A107450
C2603106Certificate of AnalysisNov 15, 2025 A107450
B2627120Certificate of AnalysisNov 15, 2025 A107450
K2512084Certificate of AnalysisNov 15, 2025 A107450
H2109152Certificate of AnalysisMay 12, 2025 A107450
D2511269Certificate of AnalysisJul 11, 2024 A107450
D2511270Certificate of AnalysisJul 11, 2024 A107450
D2511268Certificate of AnalysisJul 11, 2024 A107450
K2428459Certificate of AnalysisJul 10, 2024 A107450
G2425080Certificate of AnalysisMar 26, 2024 A107450
K1927085Certificate of AnalysisSep 08, 2023 A107450
B2324363Certificate of AnalysisMar 08, 2023 A107450
B2324080Certificate of AnalysisMar 06, 2023 A107450
G2307502Certificate of AnalysisJun 22, 2022 A107450
G2226048Certificate of AnalysisJun 22, 2022 A107450
I2504058Certificate of AnalysisJun 22, 2022 A107450
J2529196Certificate of AnalysisJun 22, 2022 A107450
K2426182Certificate of AnalysisJun 22, 2022 A107450
E2326291Certificate of AnalysisJun 22, 2022 A107450
E2311129Certificate of AnalysisJun 22, 2022 A107450
A2417115Certificate of AnalysisJun 22, 2022 A107450
F1826137Certificate of AnalysisApr 27, 2022 A107450

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Chemical and Physical Properties
SolubilityInsoluble in water, soluble in ethanol.
Melt Point(°C)>300°C
Molecular Weight181.150 g/mol
XLogP30.300
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass181.038 Da
Monoisotopic Mass181.038 Da
Topological Polar Surface Area101.000 Ų
Heavy Atom Count13
Formal Charge0
Complexity206.000
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
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