N,N'-Diphenylbenzidine - ≥98% , CAS No.531-91-9

CAS: 531-91-9 Cat. No.: D113484 Molecular Weight: 336.43 Beilstein Registry Number: 2220993 EC Number: 208-521-7
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
SCHEMBL67901 | UNII-8IO8V406YP | AM62656 | N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine | N,N'-diphenyl[1,1'-biphenyl]-4,4'-diamine | N,N'-Diphenylbenzidine | FT-0629581 | MFCD00003016 | N,N inverted exclamation mark -Diphenylbenzidine | N4,N4'-DIPHENYL-(1,
Storage
Protected from light,Room temperature
Shipped In
Normal
Size
Status
Price
Qty
5g
D113484-5g
5

$9.90

$14.90
Save $5.00 (33.56%)
25g
D113484-25g
2

$36.90

$55.90
Save $19.00 (33.99%)
100g
D113484-100g
2

$145.90

$218.90
Save $73.00 (33.35%)
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

Protected from light,Room temperature Ships Normal 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
SCHEMBL67901 | UNII-8IO8V406YP | AM62656 | N, N'-diphenyl-[1, 1'-biphenyl]-4, 4'-diamine | N, N'-diphenyl[1, 1'-biphenyl]-4, 4'-diamine | N, N'-Diphenylbenzidine | FT-0629581 | MFCD00003016 | N, N inverted exclamation mark -Diphenylbenzidine | N4, N4'-DIPHENYL-(1,
Specifications & Purity
≥98%
Storage
Protected from light, Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid504754273
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504754273
Canonical SmilesC1=CC=C(C=C1)NC2=CC=C(C=C2)C3=CC=C(C=C3)NC4=CC=CC=C4
IUPAC Name4-(4-anilinophenyl)-N-phenylaniline
InChIKeyFDRNXKXKFNHNCA-UHFFFAOYSA-N
INCHI1S/C24H20N2/c1-3-7-21(8-4-1)25-23-15-11-19(12-16-23)20-13-17-24(18-14-20)26-22-9-5-2-6-10-22/h1-18,25-26H
Isomeric SMILES C1=CC=C(C=C1)NC2=CC=C(C=C2)C3=CC=C(C=C3)NC4=CC=CC=C4
WGK Germany 3
Molecular Weight 336.43
Beilstein 2220993
Reaxy-Rn 2220993
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2220993&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
ClassBenzene and substituted derivatives
SubclassBiphenyls and derivatives
Intermediate Tree Nodes Not available
Direct ParentBiphenyls and derivatives
Alternative Parents Aniline and substituted anilines  Secondary amines  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Biphenyl - Aniline or substituted anilines - Secondary amine - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Amine - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as biphenyls and derivatives. These are organic compounds containing to benzene rings linked together by a C-C bond.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

12 results found

Lot NumberCertificate TypeDateItem
K21251052Certificate of AnalysisSep 08, 2025 D113484
K21251065Certificate of AnalysisSep 08, 2025 D113484
K21251103Certificate of AnalysisSep 08, 2025 D113484
L2418412Certificate of AnalysisDec 20, 2024 D113484
L2024053Certificate of AnalysisOct 11, 2024 D113484
L2024052Certificate of AnalysisOct 11, 2024 D113484
L2024051Certificate of AnalysisOct 11, 2024 D113484
E2516420Certificate of AnalysisJul 16, 2024 D113484
J2414462Certificate of AnalysisJun 26, 2024 D113484
F2316970Certificate of AnalysisJun 30, 2023 D113484
G2504118Certificate of AnalysisAug 31, 2021 D113484
L2418425Certificate of AnalysisAug 31, 2021 D113484

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Chemical and Physical Properties
SolubilityInsoluble in water, Acetic acid, Sulfuric acid & hot THF.
SensitivityLight sensitive.
Melt Point(°C)246-250°C
Molecular Weight336.400 g/mol
XLogP36.600
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count5
Exact Mass336.163 Da
Monoisotopic Mass336.163 Da
Topological Polar Surface Area24.100 Ų
Heavy Atom Count26
Formal Charge0
Complexity343.000
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
Solution Calculators
Reviews

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