p-Benzoquinone - Moligand™, ≥99%, used for Used for the qualitative determination of coniine, pyridine, azirmonochrome, tyrosine, and hydroquinone. Used in analytical chemistry for the determination of amino acids. High-purity grades of 99% and 99.5% are

Name: p-Benzoquinone - Moligand™, ≥99%, used for Used for the qualitative determination of coniine, pyridine, azirmonochrome, tyrosine, and hydroquinone. Used in analytical chemistry for the determination of amino acids. High-purity grades of 99% and 99.5% are
Brand: Aladdin Scientific
SKU: B108671
Availability: InStock

CAS: 106-51-4 Cat. No.: B108671 Formula: C₆H₄O₂ Molecular Weight: 108.1 Beilstein Registry Number: 7609 EC Number: 203-405-2

2438 Citations COA

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p-Benzoquinone - Moligand™, ≥99% CAS No(106-51-4) by Aladdin Scientific

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AVAILABLE TO ORDER

GRADE & PURITY Moligand™ ? ≥99%

Synonyms

EN300-19699 | p-Benzoquinone, reagent grade, >=98% | AI3-09068 | AKOS025243267 | NCI-C55845 | BDBM22774 | EU-0100120 | NCGC00091053-01 | SMR000326659 | VS-02448 | p-Chinon | Quinone1,4-Benzoquinone | Tox21_500120 | USAF P-220 | p-BQ | Steara pbq | STK3983

Storage

Store at 2-8°C,Argon charged

Shipped In

Wet ice,FedEx DG Service

Overview Specifications Names and Identifiers Documentation Advanced Data Taxonomic Classification 3D Structure Associated Targets(Human) Associated Targets(non-human) Mechanisms of Action Certificates (CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties FAQs and Articles Citations of This Product Solution Calculators Reviews

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Why this grade

Moligand™, ≥99% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice,FedEx DG Service Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 2438 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

p-Benzoquinone (PBQ) is a cyclic conjugated diketone. Its high-resolution photoelectron spectrum has been reported. The visible and near ultraviolet spectra of PBQ have been recorded and analyzed.Its addition as coagent has been reported to enhance the crosslinking rate of polypropylene initiated by the pyrolysis of peroxides. Its impact on hemoglobin (Hb) has been investigated based on immunoblots and mass spectral analysis of a smoker′s blood. Free radical inhibitor

Specifications

Synonyms

Specifications & Purity

Moligand™, ≥99%

Application

Used for the qualitative determination of coniine, pyridine, azirmonochrome, tyrosine, and hydroquinone. Used in analytical chemistry for the determination of amino acids. High-purity grades of 99% and 99.5% are used for the spectrophotometric determinati

Storage

Store at 2-8°C,Argon charged

Shipped In

Wet ice,FedEx DG Service

This product requires cold chain shipping. Ground and other economy services are not available.

Grade

Moligand™

Purity

≥99%

Product Line

B108671-100g

Names and Identifiers

Pubchem Sid

508813320

Pubchem Sid Url

https://pubchem.ncbi.nlm.nih.gov/substance/508813320

Canonical Smiles

C1=CC(=O)C=CC1=O

IUPAC Name

cyclohexa-2,5-diene-1,4-dione

InChIKey

AZQWKYJCGOJGHM-UHFFFAOYSA-N

INCHI

1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H

Isomeric SMILES

C1=CC(=O)C=CC1=O

RTECS

DK2625000

UN Number

2587

Packing Group

Molecular Weight

108.1

Beilstein

7609

Reaxy-Rn

773967

Reaxys-RN_link_address

https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=773967&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

Kingdom Organic compounds
- Superclass Organic oxygen compounds
  - Class Organooxygen compounds
    - Subclass Carbonyl compounds
      - Level5 Ketones
        Level6 Cyclic ketones
        Level7 Quinones
        Level8 Benzoquinones
        Level9 P-benzoquinones

Kingdom	Organic compounds
Superclass	Organic oxygen compounds
Class	Organooxygen compounds
Subclass	Carbonyl compounds
Intermediate Tree Nodes	Ketones - Cyclic ketones - Quinones - Benzoquinones
Direct Parent	P-benzoquinones
Alternative Parents	Organic oxides Hydrocarbon derivatives
Molecular Framework	Aliphatic homomonocyclic compounds
Substituents	P-benzoquinone - Organic oxide - Hydrocarbon derivative - Aliphatic homomonocyclic compound
Description	This compound belongs to the class of organic compounds known as p-benzoquinones. These are benzoquinones where the two C=O groups are attached at the 1- and 4-positions, respectively.
External Descriptors	a small molecule
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

TRPA1 Tclin Transient receptor potential cation channel subfamily A member 1 (1 Activities)

Discover Target: TRPA1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

ACHE Tclin Acetylcholinesterase (1 Activities)

Discover Target: ACHE

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

TYMS Tclin Thymidylate synthase (1651 Activities)

Discover Target: TYMS

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAOA Tclin Monoamine oxidase A (11911 Activities)

Discover Target: MAOA

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ACHE Tclin Acetylcholinesterase (18204 Activities)

Discover Target: ACHE

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAOB Tclin Monoamine oxidase B (8835 Activities)

Discover Target: MAOB

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

DHODH Tclin Dihydroorotate dehydrogenase (2737 Activities)

Discover Target: DHODH

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

KCNH2 Tclin HERG (29587 Activities)

Discover Target: KCNH2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CXCL8 Tchem Interleukin-8 (642 Activities)

Discover Target: CXCL8

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

POLB Tchem DNA polymerase beta (23632 Activities)

Discover Target: POLB

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

BCHE Tclin Butyrylcholinesterase (7174 Activities)

Discover Target: BCHE

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ARSA Tbio Cerebroside-sulfatase (655 Activities)

Discover Target: ARSA

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PLK1 Tchem Serine/threonine-protein kinase PLK1 (28605 Activities)

Discover Target: PLK1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ALDH1A1 Tchem Aldehyde dehydrogenase 1A1 (77053 Activities)

Discover Target: ALDH1A1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CES2 Tchem Carboxylesterase 2 (583 Activities)

Discover Target: CES2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CASP1 Tchem Caspase-1 (6235 Activities)

Discover Target: CASP1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CES1 Tchem Acyl coenzyme A:cholesterol acyltransferase (1029 Activities)

Discover Target: CES1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

TP53 Tchem Cellular tumor antigen p53 (48468 Activities)

Discover Target: TP53

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MDM2 Tchem p53-binding protein Mdm-2 (4545 Activities)

Discover Target: MDM2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HT-29 (80576 Activities)

Lot Number	Certificate Type	Date	Item
H2611145	Certificate of Analysis	Jul 29, 2026	B108671
H2611147	Certificate of Analysis	Jul 29, 2026	B108671
H2611148	Certificate of Analysis	Jul 29, 2026	B108671
G2631176	Certificate of Analysis	Jul 23, 2026	B108671
G2631177	Certificate of Analysis	Jul 23, 2026	B108671
G2631178	Certificate of Analysis	Jul 23, 2026	B108671
E2606183	Certificate of Analysis	Apr 21, 2026	B108671
E2606176	Certificate of Analysis	Apr 21, 2026	B108671
K2517015	Certificate of Analysis	Nov 06, 2025	B108671
J2529191	Certificate of Analysis	Nov 06, 2025	B108671
K2510226	Certificate of Analysis	Oct 29, 2025	B108671
K2510227	Certificate of Analysis	Oct 29, 2025	B108671
K2510228	Certificate of Analysis	Oct 29, 2025	B108671
A22071114	Certificate of Analysis	Oct 13, 2025	B108671
C2512384	Certificate of Analysis	Feb 06, 2025	B108671
C2512383	Certificate of Analysis	Feb 06, 2025	B108671
K2405424	Certificate of Analysis	Oct 19, 2024	B108671
G2418499	Certificate of Analysis	Jul 08, 2024	B108671
G2418500	Certificate of Analysis	Jul 08, 2024	B108671
D2410107	Certificate of Analysis	Mar 29, 2024	B108671
D2410144	Certificate of Analysis	Mar 29, 2024	B108671
K2321052	Certificate of Analysis	Nov 06, 2023	B108671
K2321051	Certificate of Analysis	Nov 06, 2023	B108671
G2329140	Certificate of Analysis	Jul 18, 2023	B108671
G2329138	Certificate of Analysis	Jul 18, 2023	B108671
G2329144	Certificate of Analysis	Jul 18, 2023	B108671
B2327474	Certificate of Analysis	Jan 03, 2023	B108671
B2327475	Certificate of Analysis	Jan 03, 2023	B108671
B2327476	Certificate of Analysis	Jan 03, 2023	B108671
F23161087	Certificate of Analysis	Jan 03, 2023	B108671
F2327431	Certificate of Analysis	Jan 03, 2023	B108671
K2224232	Certificate of Analysis	Sep 30, 2022	B108671
K2224245	Certificate of Analysis	Sep 30, 2022	B108671
K2224132	Certificate of Analysis	Sep 30, 2022	B108671
E2325057	Certificate of Analysis	Sep 30, 2022	B108671
G2216045	Certificate of Analysis	Jun 04, 2022	B108671
G2216046	Certificate of Analysis	Jun 04, 2022	B108671
G2216060	Certificate of Analysis	Jun 04, 2022	B108671

Solubility	Soluble in water, ethanol, ether, methanol, benzene, acetone and ethyl acetate.
Sensitivity	Light & Air & Moisture & heat Sensitive.
x_flash_point_drop_centigrade	77°C
x_boil_point_char	180°C
x_melt_point_char	112-116°C
Molecular Weight	108.090 g/mol
XLogP3	0.200
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	108.021 Da
Monoisotopic Mass	108.021 Da
Topological Polar Surface Area	34.100 Å²
Heavy Atom Count	8
Formal Charge	0
Complexity	149.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

p-Benzoquinone - Moligand™, ≥99%, used for Used for the qualitative determination of coniine, pyridine, azirmonochrome, tyrosine, and hydroquinone. Used in analytical chemistry for the determination of amino acids. High-purity grades of 99% and 99.5% are

Storage & shipping

Quality documents

Literature proof

Overview

Specifications

Documentation

📋 Safety Data Sheet (SDS)

✅ Certificate of Analysis (COA)

📊 Datasheet

🔬 Specification Sheet

Advanced Data

Molarity Calculator

Dilution Calculator

Reconstitution Calculator

Customer Reviews

📚 Citations by Application

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