4-Hydroxy benzaldehyde - AR, ≥98% , CAS No.123-08-0

CAS: 123-08-0 Cat. No.: H100420 Formula: C7H6O2 Molecular Weight: 122.12 Beilstein Registry Number: 471352 EC Number: 204-599-1
AVAILABLE TO ORDER
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results. ≥98%
Synonyms
PHBA | 4-Formylphenol | Benzaldehyde, p-hydroxy- | p-Formylphenol | p-Oxybenzaldehyde | p-Hydroxybenzaldehyde | USAF M-6 | NSC 2127 | 4-hydroxybenzaldehyde | 4-HYDROXY-BENZALDEHYDE | Benzaldehyde, 4-hydroxy- | 4-Hydroxy benzaldehyde | MFCD00006939 | Parah
Storage
Protected from light,Room temperature,Argon charged
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
25g
H100420-25g
—
2 In stock
€8.59
100g
H100420-100g
—
1 In stock
€12.93
250g
H100420-250g
1 In stock
1 In stock
€25.08
500g
H100420-500g
1 In stock
1 In stock
€38.96
Enter a quantity for the sizes you want to add.
🧪
Why this grade

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

🌡

Storage & shipping

Protected from light,Room temperature,Argon charged 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 237 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

application:

4-Hydroxybenzaldehyde is used as a chemical that maintains bactericidal activity when tested against certain bacteria strains.

Specifications

Synonyms
PHBA | 4-Formylphenol | Benzaldehyde, p-hydroxy- | p-Formylphenol | p-Oxybenzaldehyde | p-Hydroxybenzaldehyde | USAF M-6 | NSC 2127 | 4-hydroxybenzaldehyde | 4-HYDROXY-BENZALDEHYDE | Benzaldehyde, 4-hydroxy- | 4-Hydroxy benzaldehyde | MFCD00006939 | Parah
Specifications & Purity
AR, ≥98%
Storage
Protected from light,Room temperature,Argon charged
Shipped In
Normal
Grade
AR
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/508813310
Canonical Smiles
C1=CC(=CC=C1C=O)O
IUPAC Name
4-hydroxybenzaldehyde
InChIKey
RGHHSNMVTDWUBI-UHFFFAOYSA-N
INCHI
1S/C7H6O2/c8-5-6-1-3-7(9)4-2-6/h1-5,9H
Isomeric SMILES
C1=CC(=CC=C1C=O)O
WGK Germany
2
RTECS
CU6475000
UN Number
1988
Molecular Weight
122.12
Beilstein
471352
Reaxy-Rn
471352
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=471352&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 Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Hydroxybenzaldehyde - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Benzenoid - Monocyclic benzene moiety - 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 a small molecule
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
TYR Tclin Tyrosinase (717 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ACHE Tclin Acetylcholinesterase (18204 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SLC6A1 Tclin GABA transporter 1 (308 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ABAT Tclin Gamma-amino-N-butyrate transaminase (140 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ALDH5A1 Tclin Succinate semialdehyde dehydrogenase (19 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BCHE Tclin Butyrylcholinesterase (7174 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MPO Tchem Myeloperoxidase (1002 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
AOX1 Tchem Aldehyde oxidase (429 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HT-1080 (3966 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HT-29 (80576 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
K562 (73714 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MCF7 (126967 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
A549 (127892 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
T47D (39041 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HCT-116 (91556 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
WiDr (1835 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HepG2 (196354 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HUVEC (11049 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
KB (17409 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HeLa (62764 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SIRT1 Tchem NAD-dependent deacetylase sirtuin 1 (3505 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
IDO1 Tchem Indoleamine 2,3-dioxygenase (6650 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SW1573 (1008 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Y79 (258 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Staphylococcus aureus (210822 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Bacillus subtilis (32866 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mycobacterium tuberculosis (203094 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasmodium falciparum (966862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Candida albicans (78123 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Candida tropicalis (8381 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Meloidogyne incognita (862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
L1210 (27553 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
RAW264.7 (28094 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HT-22 (3261 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
B16-F10 (4610 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Perknaster fuscus (7 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Cirsium arvense (30 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.

54 results found

Lot NumberCertificate TypeDateItem
J2623146Certificate of AnalysisJul 23, 2026 H100420
H2604135Certificate of AnalysisJul 23, 2026 H100420
H2604136Certificate of AnalysisJul 23, 2026 H100420
H2604185Certificate of AnalysisJul 23, 2026 H100420
C2626489Certificate of AnalysisMar 12, 2026 H100420
G2614072Certificate of AnalysisMar 12, 2026 H100420
C2626526Certificate of AnalysisMar 12, 2026 H100420
C2626486Certificate of AnalysisMar 12, 2026 H100420
C2626484Certificate of AnalysisMar 12, 2026 H100420
I2503318Certificate of AnalysisJun 06, 2025 H100420
G2518373Certificate of AnalysisJun 06, 2025 H100420
G2518372Certificate of AnalysisJun 06, 2025 H100420
G2518374Certificate of AnalysisJun 06, 2025 H100420
G2518375Certificate of AnalysisJun 06, 2025 H100420
G2518376Certificate of AnalysisJun 06, 2025 H100420
I2503501Certificate of AnalysisJun 06, 2025 H100420
I2503319Certificate of AnalysisJun 06, 2025 H100420
C2611081Certificate of AnalysisJun 06, 2025 H100420
I2503500Certificate of AnalysisJun 06, 2025 H100420
J2115331Certificate of AnalysisApr 03, 2025 H100420
F2517058Certificate of AnalysisJan 20, 2025 H100420
B2511245Certificate of AnalysisJan 20, 2025 H100420
B2511238Certificate of AnalysisJan 20, 2025 H100420
B2511226Certificate of AnalysisJan 20, 2025 H100420
B2511218Certificate of AnalysisJan 20, 2025 H100420
B2511246Certificate of AnalysisJan 20, 2025 H100420
B2511268Certificate of AnalysisJan 20, 2025 H100420
L2413478Certificate of AnalysisOct 23, 2024 H100420
J2431400Certificate of AnalysisOct 21, 2024 H100420
J2431399Certificate of AnalysisOct 21, 2024 H100420
J2431398Certificate of AnalysisOct 21, 2024 H100420
J2431397Certificate of AnalysisOct 21, 2024 H100420
J2431396Certificate of AnalysisOct 21, 2024 H100420
G2425724Certificate of AnalysisApr 27, 2024 H100420
G2425723Certificate of AnalysisApr 27, 2024 H100420
G2425722Certificate of AnalysisApr 27, 2024 H100420
G2425725Certificate of AnalysisApr 27, 2024 H100420
J2115333Certificate of AnalysisJul 11, 2023 H100420
A2303404Certificate of AnalysisAug 01, 2022 H100420
L2301149Certificate of AnalysisAug 01, 2022 H100420
A2303406Certificate of AnalysisAug 01, 2022 H100420
A2305189Certificate of AnalysisAug 01, 2022 H100420
C2405053Certificate of AnalysisAug 01, 2022 H100420
C2418092Certificate of AnalysisAug 01, 2022 H100420
I2222162Certificate of AnalysisAug 01, 2022 H100420
I2222026Certificate of AnalysisAug 01, 2022 H100420
I2222025Certificate of AnalysisAug 01, 2022 H100420
I2221432Certificate of AnalysisAug 01, 2022 H100420
I2221431Certificate of AnalysisAug 01, 2022 H100420
G2214536Certificate of AnalysisJun 28, 2022 H100420
G2214537Certificate of AnalysisJun 28, 2022 H100420
G2214539Certificate of AnalysisJun 28, 2022 H100420
G2214540Certificate of AnalysisJun 28, 2022 H100420
G2214541Certificate of AnalysisJun 28, 2022 H100420
Chemical and Physical Properties
SolubilitySoluble in water(13.8g/L), ether, alcohol, and acetone.
SensitivityAir Sensitive
Flash Point(°F)345°F
Flash Point(°C)174℃
Melt Point(°C)117 °C
Molecular Weight122.120 g/mol
XLogP31.400
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass122.037 Da
Monoisotopic Mass122.037 Da
Topological Polar Surface Area37.300 Ų
Heavy Atom Count9
Formal Charge0
Complexity93.100
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

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