2,5-Dihydroxybenzaldehyde - ≥98% , CAS No.1194-98-5

CAS: 1194-98-5 Cat. No.: D109443 Molecular Weight: 138.12 Beilstein Registry Number: 1363961 EC Number: 214-789-6
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
D0565 | H11349 | SCHEMBL36835 | 2,5-Dihydroxybenzaldehyde, Vetec(TM) reagent grade, 98% | CHEBI:28508 | BDBM50478478 | 5-hydroxysalicylaldehyde | AC-12258 | EINECS 214-789-6 | Z586251264 | 4991335E-F710-4A4F-927E-62D82076133E | Gentisinaldehyde | Chlorfib
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
D109443-1g
2

$9.90

$14.90
Save $5.00 (33.56%)
5g
D109443-5g
3

$11.90

$17.90
Save $6.00 (33.52%)
25g
D109443-25g
3

$31.90

$47.90
Save $16.00 (33.40%)
100g
D109443-100g
3

$125.90

$188.90
Save $63.00 (33.35%)
500g
D109443-500g
1

$503.90

$755.90
Save $252.00 (33.34%)
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Store at 2-8°C,Argon charged 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.

Specifications

Synonyms
D0565 | H11349 | SCHEMBL36835 | 2, 5-Dihydroxybenzaldehyde, Vetec(TM) reagent grade, 98% | CHEBI:28508 | BDBM50478478 | 5-hydroxysalicylaldehyde | AC-12258 | EINECS 214-789-6 | Z586251264 | 4991335E-F710-4A4F-927E-62D82076133E | Gentisinaldehyde | Chlorfib
Specifications & Purity
≥98%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥98%
Names and Identifiers
Pubchem Sid504754592
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504754592
Canonical SmilesC1=CC(=C(C=C1O)C=O)O
IUPAC Name2,5-dihydroxybenzaldehyde
InChIKeyCLFRCXCBWIQVRN-UHFFFAOYSA-N
INCHI1S/C7H6O3/c8-4-5-3-6(9)1-2-7(5)10/h1-4,9-10H
Isomeric SMILES C1=CC(=C(C=C1O)C=O)O
WGK Germany 3
UN Number 2734
Molecular Weight 138.12
Beilstein 1363961
Reaxy-Rn 1363961
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1363961&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
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassCarbonyl compounds
Intermediate Tree Nodes Aldehydes - Aryl-aldehydes - Benzaldehydes
Direct ParentHydroxybenzaldehydes
Alternative Parents Hydroquinones  Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Vinylogous acids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Hydroxybenzaldehyde - Hydroquinone - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Benzenoid - Monocyclic benzene moiety - Vinylogous acid - Organic oxide - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hydroxybenzaldehydes. These are organic aromatic compounds containing a benzene ring carrying an aldehyde group and a hydroxyl group.
External Descriptors dihydroxybenzaldehyde
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
EGFR Tclin Epidermal growth factor receptor erbB1 (33727 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MPO Tchem Myeloperoxidase (1002 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.

13 results found

Lot NumberCertificate TypeDateItem
E2615051Certificate of AnalysisMay 23, 2026 D109443
G2418393Certificate of AnalysisApr 07, 2026 D109443
G2416555Certificate of AnalysisApr 07, 2026 D109443
G2416249Certificate of AnalysisApr 07, 2026 D109443
D2411059Certificate of AnalysisJan 21, 2026 D109443
G2222313Certificate of AnalysisJan 21, 2026 D109443
G2222364Certificate of AnalysisJan 21, 2026 D109443
G2222365Certificate of AnalysisJan 21, 2026 D109443
G2222366Certificate of AnalysisJan 21, 2026 D109443
H1624011Certificate of AnalysisSep 16, 2025 D109443
C2225029Certificate of AnalysisSep 08, 2025 D109443
C2016158Certificate of AnalysisJun 16, 2025 D109443
E1922113Certificate of AnalysisJan 04, 2023 D109443

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Chemical and Physical Properties
SolubilitySoluble in water.
SensitivityAir sensitive
Melt Point(°C)98-102°C
Molecular Weight138.120 g/mol
XLogP31.200
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
Complexity124.000
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
References
1. Ke Sun, Zhongquan Zhu, Guowei Li, Yizhi Shao, Heng Xia, Hui Deng, Jianjun Zhang, Jiangang Gao, Gaopeng Shi, Yangyang Xu.  (2025)  Orthogonal polydiacetylene (PDA) derivatives based optical chemsensors for the selective detection of cyanide.  DYES AND PIGMENTS,      [PMID:] [10.1016/j.dyepig.2025.112809]
2. Jialu Zhang, Yu Fu, Peng Chen, Bowen Liu, Cuiling Ren.  (2025)  New silicon nanoparticles for “turn-on” detection of salicylaldehyde in food based on ESIPT mechanism.  FOOD CHEMISTRY,      [PMID:40440837] [10.1016/j.foodchem.2025.144879]
3. Yuan Chen, Ting Yao, Yuetong Mu, Kai Zhao, Kejun Zhong, Rong Yan, Chang He, Pengxiang Jia, Wenyan Zhang.  (2025)  Self-healing and recyclable thermosetting polyurethanes based on dynamic imine and phenol-carbamate bonds.  POLYMER,      [PMID:] [10.1016/j.polymer.2025.129528]
Solution Calculators
Reviews

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