2,5-Dihydroxybenzoic acid - ≥98% , CAS No.490-79-9

CAS: 490-79-9 Cat. No.: D104393 Formule: C7H6O4 Poids moléculaire: 154.12 Beilstein Registry Number: 10(4)1441 Numéro CE: 207-718-5
DISPONIBLE À COMMANDE
GRADE & PURITY ≥98%
Synonyms
Spectrum5_000581 | 4-10-00-01441 (Beilstein Handbook Reference) | Benzoic acid, 2,5-dihydroxy- | Casate sodium | Hydroquinonecarboxylic acid | Gentinatre | gentisic acid | SPBio_000846 | DivK1c_000538 | Gentisinic acid | GENTISATE SODIUM | GENTISIC ACID [
Storage
Protected from light,Room temperature
Shipped In
Normal
★
Size
USA
Allemagne (EU)*
Price
Qty
5g
D104393-5g
Sur commande · 8–12 semaines
9,90$US
25g
D104393-25g
9 En stock
—
10,90$US
100g
D104393-100g
5 En stock
—

34,90$US

52,90$US
Enregistrer 18,00 $US (34.03%)
250g
D104393-250g
2 En stock
—

76,90$US

115,90$US
Enregistrer 39,00 $US (33.65%)
500g
D104393-500g
3 En stock
1 En stock

138,90$US

208,90$US
Enregistrer 70,00 $US (33.51%)
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 96 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Vue d’ensemble

2,5-Dihydroxybenzoic acid was used as a matrix in the MALDI time-of-flight mass spectrometry analysis of the poly(styrene-co-pentafluorostyrene) copolymers.

Specifications

Synonymes
Spectrum5_000581 | 4-10-00-01441 (Beilstein Handbook Reference) | Benzoic acid, 2,5-dihydroxy- | Casate sodium | Hydroquinonecarboxylic acid | Gentinatre | gentisic acid | SPBio_000846 | DivK1c_000538 | Gentisinic acid | GENTISATE SODIUM | GENTISIC ACID [
Spécifications et pureté
≥98%
Conditions de stockage de stockage
Protected from light,Room temperature
Expédié en
Normal
Pureté
≥98%
Noms et identifiants
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488179771
Sourires canoniques
C1=CC(=C(C=C1O)C(=O)O)O
IUPAC Name
2,5-dihydroxybenzoic acid
InChIKey
WXTMDXOMEHJXQO-UHFFFAOYSA-N
INCHI
1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)
Isomères SMILES
C1=CC(=C(C=C1O)C(=O)O)O
WGK Allemagne
3
RTECS
LY3850000
Poids moléculaire
154.12
Beilstein
10(4)1441
Reaxy-Rn
2209119
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2209119&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
ClasseBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentHydroxybenzoic acid derivatives
Alternative Parents Salicylic acids  Benzoic acids  Hydroquinones  Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Vinylogous acids  Monocarboxylic acids and derivatives  Carboxylic acids  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Dihydroxybenzoic acid - Salicylic acid - Salicylic acid or derivatives - Hydroxybenzoic acid - Benzoic acid - Benzoyl - Hydroquinone - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Vinylogous acid - Carboxylic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Organic oxide - 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 dihydroxybenzoic acid
Structure 3D
Modèle de structure chimique interactif





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Mécanismes d'action
Certificats (CoA, COO, BSE/TSE et tableau d'analyse)
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.

23 results found

Lot NumberCertificate TypeDateArticle
J2126650Certificate of AnalysisAug 11, 2025 D104393
J2126659Certificate of AnalysisAug 11, 2025 D104393
J2126660Certificate of AnalysisAug 11, 2025 D104393
G2516287Certificate of AnalysisJul 24, 2025 D104393
G2516286Certificate of AnalysisJul 24, 2025 D104393
K2310456Certificate of AnalysisJul 29, 2023 D104393
J2524014Certificate of AnalysisJul 29, 2023 D104393
K2310455Certificate of AnalysisJul 29, 2023 D104393
E23291121Certificate of AnalysisMay 11, 2023 D104393
E23291122Certificate of AnalysisMay 11, 2023 D104393
E23291123Certificate of AnalysisMay 11, 2023 D104393
E2614079Certificate of AnalysisMay 11, 2023 D104393
E23291118Certificate of AnalysisMay 11, 2023 D104393
E23291115Certificate of AnalysisMay 11, 2023 D104393
E23291114Certificate of AnalysisMay 11, 2023 D104393
E23291079Certificate of AnalysisMay 11, 2023 D104393
G2220540Certificate of AnalysisJun 28, 2022 D104393
G2220542Certificate of AnalysisJun 28, 2022 D104393
B2401023Certificate of AnalysisAug 30, 2021 D104393
I2410260Certificate of AnalysisAug 30, 2021 D104393
G2308196Certificate of AnalysisAug 30, 2021 D104393
B2401022Certificate of AnalysisAug 30, 2021 D104393
C23311643Certificate of AnalysisAug 30, 2021 D104393
Propriétés chimiques et physiques
SolubilitéSoluble in Ether,Alcohol; Insoluble in Benzene,Chloroform
SensibilitéLight sensitive.
Point de fusion (°C)200-205°C
Poids moléculaire154.120 g/mol
XLogP31.600
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass154.027 Da
Monoisotopic Mass154.027 Da
Topological Polar Surface Area77.800 Ų
Heavy Atom Count11
Formal Charge0
Complexity157.000
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
Calculateurs de solution
Avis

Avis des clients

Foire aux 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 490-79-9, the molecular formula is C7H6O4, and the molecular weight is 154.12 g/mol. InChIKey WXTMDXOMEHJXQO-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.

Produits apparentés

3,4-Dihydroxybenzoic acid - ≥97% , CAS No.99-50-3
5-Bromo-2,4-dihydroxybenzoic acid monohydrate - ≥98% , CAS No.160348-98-1
5-bromo-2,3-dihydroxybenzoate de méthyle - ≥98% , CAS No.105603-49-4
Methyl 2,3-Dihydroxybenzoate - ≥98% , CAS No.2411-83-8
Methyl 2,4-dihydroxybenzoate - ≥98% , CAS No.2150-47-2
Methyl 2,5-Dihydroxybenzoate - ≥98% , CAS No.2150-46-1
Methyl 2,6-dihydroxybenzoate - ≥98% , CAS No.2150-45-0
Methyl 3,5-dihydroxybenzoate - ≥98% , CAS No.2150-44-9
Methyl 3,4-Dihydroxybenzoate - ≥98% , CAS No.2150-43-8
Ethyl 3,5-dihydroxybenzoate - ≥97% , CAS No.4142-98-7
2,3-dihydroxybenzoate d'éthyle - ≥98% , CAS No.3943-73-5
2,4-dihydroxybenzoate d'éthyle - ≥97% , CAS No.4143-00-4
Ethyl 3,4-Dihydroxybenzoate - ≥98% , CAS No.3943-89-3
2,6-Dihydroxybenzoic acid - ≥98% , CAS No.303-07-1
2,4-Dihydroxybenzoic acid - ≥98% , CAS No.89-86-1
2,5-Dihydroxybenzoic Acid Butylamine Salt [Matrix for MALDI-TOF/MS] - ≥98%(HPLC)(T) , CAS No.666174-80-7
2,3-Dihydroxybenzoic Acid - ≥98%(HPLC) , CAS No.303-38-8
Ethyl 4-bromo-2,3-dihydroxybenzoate - ≥95% , CAS No.1312609-83-8
4-Bromo-3,5-dihydroxybenzoic acid - ≥99% , CAS No.16534-12-6
2,5-Dihydroxybenzoic acid - ≥99%(HPLC), matrix substance for MALDI-MS , CAS No.490-79-9
2-Hydroxyethyl 2,4-Dihydroxybenzoate - ≥97% , CAS No.145073-32-1
3,5-Dihydroxybenzoic acid - Moligand™, ≥97% , Agonist of HCA 1 receptor, CAS No.99-10-5
3-Bromo-2,6-dihydroxybenzoic Acid - ≥98% , CAS No.26792-49-4
Ethyl 2,5-dihydroxybenzoate - ≥96% , CAS No.3943-91-7
2,3-Dihydroxybenzoic Acid - 10mM in DMSO , CAS No.303-38-8
2,4-Dihydroxybenzoic acid - 10mM in DMSO , CAS No.89-86-1
2,5-Dihydroxybenzoic acid - 10mM in DMSO , CAS No.490-79-9
2,6-Dihydroxybenzoic acid - 10mM in DMSO , CAS No.303-07-1
3,5-Dihydroxybenzoic acid - Moligand™, 10mM in DMSO , Agonist of HCA 1 receptor, CAS No.99-10-5
Methyl 3,4-Dihydroxybenzoate - 10mM in DMSO , CAS No.2150-43-8
Protocatechuic acid - 10mM in DMSO , CAS No.99-50-3
Protocatechuic acid - analytical standard, ≥97%(HPLC) , CAS No.99-50-3
2,5-Dihydroxybenzoic acid - for synthesis , CAS No.490-79-9
3-Chloro-4,5-dihydroxybenzoic acid - ≥95% , CAS No.87932-49-8

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