Isopropyl 4-hydroxybenzoate - ≥99% , CAS No.4191-73-5

CAS: 4191-73-5 Cat. No.: I111811 Molecular Weight: 180.2 EC Number: 224-069-3
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
p-Oxybenzoesaureisopropylester | Z53833637 | FT-0627478 | Benzoic acid, 4-hydroxy-, 1-methylethyl ester | A6EOX47QK0 | AS-11940 | BDBM50428379 | EINECS 224-069-3 | Q15426255 | UNII-A6EOX47QK0 | J-521566 | 4-Hydroxybenzoic acid, 1-methylethyl ester | BENZO
Storage
Store at 2-8°C
Shipped In
Wet ice
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I111811-5g
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I111811-50g
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250g
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Why this grade

≥99% 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 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

An anti-microbial.

Specifications

Synonyms
p-Oxybenzoesaureisopropylester | Z53833637 | FT-0627478 | Benzoic acid, 4-hydroxy-, 1-methylethyl ester | A6EOX47QK0 | AS-11940 | BDBM50428379 | EINECS 224-069-3 | Q15426255 | UNII-A6EOX47QK0 | J-521566 | 4-Hydroxybenzoic acid, 1-methylethyl ester | BENZO
Specifications & Purity
≥99%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥99%
Names and Identifiers
Pubchem Sid504752966
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504752966
Canonical SmilesCC(C)OC(=O)C1=CC=C(C=C1)O
IUPAC Namepropan-2-yl 4-hydroxybenzoate
InChIKeyCMHMMKSPYOOVGI-UHFFFAOYSA-N
INCHI1S/C10H12O3/c1-7(2)13-10(12)8-3-5-9(11)6-4-8/h3-7,11H,1-2H3
Isomeric SMILES CC(C)OC(=O)C1=CC=C(C=C1)O
RTECS DH2250000
Molecular Weight 180.2
Reaxy-Rn 2641564
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2641564&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 Benzoic acid esters - p-Hydroxybenzoic acid esters
Direct Parentp-Hydroxybenzoic acid alkyl esters
Alternative Parents Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Carboxylic acid esters  Monocarboxylic acids and derivatives  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents P-hydroxybenzoic acid alkyl ester - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Carboxylic acid ester - Monocarboxylic acid or derivatives - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as p-hydroxybenzoic acid alkyl esters. These are aromatic compounds containing a benzoic acid, which is esterified with an alkyl group and para-substituted with a hydroxyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CA14 Tclin Carbonic anhydrase 14 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA7 Tclin Carbonic anhydrase 7 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
CA2 Tclin Carbonic anhydrase II (17698 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA14 Tclin Carbonic anhydrase XIV (1305 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA12 Tclin Carbonic anhydrase XII (6231 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA9 Tclin Carbonic anhydrase IX (8255 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Ca7 Carbonic anhydrase VII (3 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.

12 results found

Lot NumberCertificate TypeDateItem
I2205479Certificate of AnalysisJun 15, 2026 I111811
H2428045Certificate of AnalysisOct 10, 2023 I111811
J2331431Certificate of AnalysisOct 10, 2023 I111811
J2331432Certificate of AnalysisOct 10, 2023 I111811
J2331433Certificate of AnalysisOct 10, 2023 I111811
J2331434Certificate of AnalysisOct 10, 2023 I111811
J2331435Certificate of AnalysisOct 10, 2023 I111811
J2331436Certificate of AnalysisOct 10, 2023 I111811
J2331541Certificate of AnalysisOct 10, 2023 I111811
J2309515Certificate of AnalysisSep 25, 2023 I111811
I2205478Certificate of AnalysisSep 08, 2022 I111811
H2217025Certificate of AnalysisAug 19, 2022 I111811

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Chemical and Physical Properties
SolubilitySoluble in Methanol
Boil Point(°C)160°C
Melt Point(°C)86°C
Molecular Weight180.200 g/mol
XLogP32.800
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count3
Exact Mass180.079 Da
Monoisotopic Mass180.079 Da
Topological Polar Surface Area46.500 Ų
Heavy Atom Count13
Formal Charge0
Complexity169.000
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. Yang Jinling, Li Yongxin, Gong Weilei, Wang Changqin, Liu Bencheng, Sun Chengjun.  (2014)  Simultaneous Determination of Six Parabens in Foods by Matrix Liquid-Phase Dispersion Extraction Combined with High-Performance Liquid Chromatography.  Food Analytical Methods,  (8): (1693-1702).  [PMID:] [10.1007/s12161-014-9807-9]
2. Na Wei, Zhenjia Zheng, Yuhua Wang, Yanduo Tao, Yun Shao, Shuyun Zhu, Jinmao You, Xian-En Zhao.  (2017)  Rapid and sensitive determination of multiple endocrine-disrupting chemicals by ultrasound-assisted in situ derivatization dispersive liquid–liquid microextraction coupled with ultra-high-performance liquid chromatography/tandem mass spectrometry.  RAPID COMMUNICATIONS IN MASS SPECTROMETRY,  31  (11): (937-950).  [PMID:28370680] [10.1002/rcm.7865]
3. Wenwen Zhang, Tai-Ping Zhou, Wenjing Zou, Yuyu Wang, Kexuan Wang, Yichao Yang, Chuan Liu, Zhuochao Tu, Qingqing Liu, Yongjun Yuan.  (2025)  Formation of β-cyclodextrin inclusion complexes with a series of structurally related parabens: Preparation, physicochemical characterization and antifungal properties.  Carbohydrate Polymer Technologies and Applications,      [PMID:] [10.1016/j.carpta.2025.100924]
Solution Calculators
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