Homophthalic acid - ≥98% , CAS No.89-51-0

CAS: 89-51-0 Cat. No.: H106943 Molecular Weight: 180.16 Beilstein Registry Number: 1872069 EC Number: 201-913-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
BDBM33525 | SMR000035334 | HMS2404J09 | MFCD00004326 | PB47625 | alpha-Carboxy-o-toluic acid, 2-Carboxyphenylacetic acid | I+/--Carboxy-o-toluic acid | BB 0242413 | HMS1378M18 | 2-(2-Carboxyphenyl)acetic acid | homopthalic acid | 2-Carboxylphenylacetic Ac
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
H106943-5g
10

$9.90

$14.90
Save $5.00 (33.56%)
10g
H106943-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$16.90

$25.90
Save $9.00 (34.75%)
25g
H106943-25g
2

$34.90

$52.90
Save $18.00 (34.03%)
50g
H106943-50g
3

$62.90

$94.90
Save $32.00 (33.72%)
100g
H106943-100g
3

$84.90

$127.90
Save $43.00 (33.62%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

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

🌡

Storage & shipping

Room temperature Ships Normal 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 4 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

A remainder phthalic acid.

Specifications

Synonyms
BDBM33525 | SMR000035334 | HMS2404J09 | MFCD00004326 | PB47625 | alpha-Carboxy-o-toluic acid, 2-Carboxyphenylacetic acid | I+/--Carboxy-o-toluic acid | BB 0242413 | HMS1378M18 | 2-(2-Carboxyphenyl)acetic acid | homopthalic acid | 2-Carboxylphenylacetic Ac
Specifications & Purity
≥98%
Storage
Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid488183822
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488183822
Canonical SmilesC1=CC=C(C(=C1)CC(=O)O)C(=O)O
IUPAC Name2-(carboxymethyl)benzoic acid
InChIKeyZHQLTKAVLJKSKR-UHFFFAOYSA-N
INCHI1S/C9H8O4/c10-8(11)5-6-3-1-2-4-7(6)9(12)13/h1-4H,5H2,(H,10,11)(H,12,13)
Isomeric SMILES C1=CC=C(C(=C1)CC(=O)O)C(=O)O
WGK Germany 3
RTECS CY1575590
Molecular Weight 180.16
Beilstein 1872069
Reaxy-Rn 1872069
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1872069&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzoic acids
Alternative Parents Benzoyl derivatives  Dicarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzoic acid - Benzoyl - Dicarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzoic acids. These are organic Compounds containing a benzene ring which bears at least one carboxyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
F2 Tclin Thrombin (11687 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HEK293 (82097 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Rattus norvegicus (775804 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
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.

9 results found

Lot NumberCertificate TypeDateItem
H2211219Certificate of AnalysisMay 20, 2026 H106943
H2211222Certificate of AnalysisMay 20, 2026 H106943
H2211223Certificate of AnalysisMay 20, 2026 H106943
H2211224Certificate of AnalysisMay 20, 2026 H106943
L2017101Certificate of AnalysisOct 14, 2024 H106943
L2017100Certificate of AnalysisOct 14, 2024 H106943
L2503250Certificate of AnalysisJul 08, 2024 H106943
C1908168Certificate of AnalysisDec 14, 2022 H106943
D2314046Certificate of AnalysisJun 20, 2022 H106943
Chemical and Physical Properties
SolubilitySoluble in Dimethylformamide
Melt Point(°C)178-182°C
Molecular Weight180.160 g/mol
XLogP31.600
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count4
Rotatable Bond Count3
Exact Mass180.042 Da
Monoisotopic Mass180.042 Da
Topological Polar Surface Area74.600 Ų
Heavy Atom Count13
Formal Charge0
Complexity212.000
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. Naixin Li, Fang Lei, Xiaoxiao Ji, Luqiao Yin, Ying Shi.  (2021)  Synthesis of self-assembled one-dimensional perovskite nanobelt passivated by homophthalic acid and application in WLED.  JOURNAL OF LUMINESCENCE,      [PMID:] [10.1016/j.jlumin.2021.118531]
2. Hang Chen, Xuelin Dong, Kaide Ou, Xin Cong, Yonggui Liao, Yajiang Yang, Hong Wang.  (2024)  A pH-responsive dual-emission composite for fast detection of BAs and visual monitoring seafood freshness with large luminescence color difference.  TALANTA,      [PMID:39357405] [10.1016/j.talanta.2024.126946]
3. Yuting Zhang, Xinmiao Qi, Qiang Ma, Jie Li, Xin Guo, Jianzheng Qiao, Yiqiang Wu.  (2025)  Fluorescent β-cyclodextrin-based hydrogel for enhanced adsorption and fluorescence detection of malachite green.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2025.132065]
4. Tian Zhao, Shilin Peng, Jiangrong Yu, Jiayao Chen, Fuli Luo, Kar Keng Lim, Hafiz Hamsan, Nurul Syakirah Nazri.  (2025)  Study on the effect of different shapes of HKUST-1 based cellulose battery separators on the performance of zinc batteries.  Journal of Energy Storage,      [PMID:] [10.1016/j.est.2025.118066]
Solution Calculators
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.