3-Hydroxybenzoic acid - ≥98% , CAS No.99-06-9

CAS: 99-06-9 Cat. No.: H104349 Formula: C7H6O3 Molecular Weight: 138.12 Beilstein Registry Number: 508160 EC Number: 202-726-5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
meta-hydroxybenzoate | 713EC407-4844-477D-8207-DBD66E398D2C | C00587 | 3-Carboxyphenol | NSC55746 | NSC-55746 | m-salicylate | NCGC00248676-01 | EINECS 202-726-5 | PD144440 | SCHEMBL40078 | EN300-17318 | HY-W004049 | Tox21_200527 | BDBM50336491 | 3-Hydrox
Storage
Protected from light,Room temperature
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
25g
H104349-25g
In stock ≥10
—

$10.90

$16.90
Save $6.00 (35.50%)
100g
H104349-100g
5 In stock
—

$13.90

$20.90
Save $7.00 (33.49%)
500g
H104349-500g
2 In stock
—

$27.90

$41.90
Save $14.00 (33.41%)
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

Protected from light,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 43 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
meta-hydroxybenzoate | 713EC407-4844-477D-8207-DBD66E398D2C | C00587 | 3-Carboxyphenol | NSC55746 | NSC-55746 | m-salicylate | NCGC00248676-01 | EINECS 202-726-5 | PD144440 | SCHEMBL40078 | EN300-17318 | HY-W004049 | Tox21_200527 | BDBM50336491 | 3-Hydrox
Specifications & Purity
≥98%
Storage
Protected from light,Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488180421
Canonical Smiles
C1=CC(=CC(=C1)O)C(=O)O
IUPAC Name
3-hydroxybenzoic acid
InChIKey
IJFXRHURBJZNAO-UHFFFAOYSA-N
INCHI
1S/C7H6O3/c8-6-3-1-2-5(4-6)7(9)10/h1-4,8H,(H,9,10)
Isomeric SMILES
C1=CC(=CC(=C1)O)C(=O)O
WGK Germany
3
RTECS
DH1924980
Molecular Weight
138.12
Beilstein
508160
Reaxy-Rn
508160
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=508160&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ 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 ParentHydroxybenzoic acid derivatives
Alternative Parents Benzoic acids  Benzoyl derivatives  1-hydroxy-4-unsubstituted benzenoids  1-hydroxy-2-unsubstituted benzenoids  Monocarboxylic acids and derivatives  Carboxylic acids  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Hydroxybenzoic acid - Benzoic acid - Benzoyl - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Monocarboxylic acid or derivatives - Carboxylic acid - 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 hydroxybenzoic acid derivatives. These are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups.
External Descriptors monohydroxybenzoic acid
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CA2 Tclin Carbonic anhydrase 2 (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
VDR Tclin Vitamin D receptor (26531 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA6 Tclin Carbonic anhydrase VI (993 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
NEU3 Tchem Sialidase 3 (398 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)
Ptpn1 Protein-tyrosine phosphatase 1B (270 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Hcar2 Hydroxycarboxylic acid receptor 2 (55 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Carbonic anhydrase (69 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Ralstonia solanacearum (520 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Saccharomyces cerevisiae (19171 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 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.

21 results found

Lot NumberCertificate TypeDateItem
H2205236H2205236Certificate of AnalysisMay 18, 2026 H104349
H2205231H2205231Certificate of AnalysisMay 18, 2026 H104349
H2205230H2205230Certificate of AnalysisMay 18, 2026 H104349
K2102115K2102115Certificate of AnalysisAug 11, 2025 H104349
D2416302D2416302Certificate of AnalysisMar 13, 2024 H104349
D2416303D2416303Certificate of AnalysisMar 13, 2024 H104349
D2416304D2416304Certificate of AnalysisMar 13, 2024 H104349
E2429042E2429042Certificate of AnalysisMar 13, 2024 H104349
D2515010D2515010Certificate of AnalysisNov 29, 2022 H104349
K2327046K2327046Certificate of AnalysisNov 29, 2022 H104349
I2516096I2516096Certificate of AnalysisNov 29, 2022 H104349
I2505137I2505137Certificate of AnalysisNov 29, 2022 H104349
H2625052H2625052Certificate of AnalysisNov 29, 2022 H104349
D2308214D2308214Certificate of AnalysisNov 29, 2022 H104349
D2515008D2515008Certificate of AnalysisNov 29, 2022 H104349
D2308223D2308223Certificate of AnalysisNov 29, 2022 H104349
D2308219D2308219Certificate of AnalysisNov 29, 2022 H104349
D2308218D2308218Certificate of AnalysisNov 29, 2022 H104349
D2308217D2308217Certificate of AnalysisNov 29, 2022 H104349
D2308216D2308216Certificate of AnalysisNov 29, 2022 H104349
H2205232H2205232Certificate of AnalysisJun 12, 2022 H104349
Chemical and Physical Properties
SolubilitySlightly soluble in water;Solubility in Methanol:almost transparency;
SensitivityLight sensitive.
Flash Point(°F)428°F
Flash Point(°C)220℃
Melt Point(°C)201-207℃
Molecular Weight138.120 g/mol
XLogP31.500
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass138.032 Da
Monoisotopic Mass138.032 Da
Topological Polar Surface Area57.500 Ų
Heavy Atom Count10
Formal Charge0
Complexity133.000
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
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product?
This product is supplied at ≥98% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at room temperature, protected from light. The material is light-sensitive — keep it in its original opaque or amber container.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 99-06-9, the molecular formula is C7H6O3, and the molecular weight is 138.12 g/mol. InChIKey IJFXRHURBJZNAO-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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