3,3′,5,5′-Tetramethylbenzidine dihydrochloride - anhydrous, ≥98% , CAS No.64285-73-0

CAS: 64285-73-0 Cat. No.: T105329 Formula: C16H20N2·2HCl Molecular Weight: 313.27 EC Number: 264-769-6 PubChem CID: 174033
AVAILABLE TO ORDER
GRADE & PURITY Anhydrous Grade ? Anhydrous grade — water removed and packaged dry for moisture-sensitive chemistry. Use in reactions where even trace water would interfere or quench. ≥98%
Synonyms
4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline dihydrochloride | AC-24636 | BCP31645 | 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline;dihydrochloride | 3,3',5,5'-Tetramethylbenzidine dihydrochloride | TMB (dihydrochloride hydrate) | SCHEMBL472235
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
★
Size
Germany (EU)
USA*
Price
Qty
1g
T105329-1g
—
3 In stock
€41.56
5g
T105329-5g
—
In stock ≥10
€153.50
25g
T105329-25g
—
3 In stock
€388.66
Enter a quantity for the sizes you want to add.
🧪
Why this grade

anhydrous, ≥98% Anhydrous Grade 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 47 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

A peroxidase substrate suitable for use in ELISA procedures.

Specifications

Synonyms
4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline dihydrochloride | AC-24636 | BCP31645 | 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline;dihydrochloride | 3,3',5,5'-Tetramethylbenzidine dihydrochloride | TMB (dihydrochloride hydrate) | SCHEMBL472235
Specifications & Purity
anhydrous, ≥98%
Biochemical and Physiological Mechanisms
3,3',5,5'-Tetramethylbenzidine dihydrochloride is a salt form of 3,3′,5,5′-Tetramethylbenzidine (TMB). 3,3′,5,5′-Tetramethylbenzidine (TMB) is a peroxidase substrate suitable for use in ELISA procedures, producing soluble bend products usually pale blue i
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.
Grade
Anhydrous Grade
Purity
≥98%
Names and Identifiers
Pubchem Sid
Canonical Smiles
CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C.Cl.Cl
IUPAC Name
4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline;dihydrochloride
InChIKey
NYNRGZULARUZCC-UHFFFAOYSA-N
INCHI
1S/C16H20N2.2ClH/c1-9-5-13(6-10(2)15(9)17)14-7-11(3)16(18)12(4)8-14;;/h5-8H,17-18H2,1-4H3;2*1H
Isomeric SMILES
CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C.Cl.Cl
WGK Germany
3
PubChem CID
174033
Molecular Weight
313.27

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 ParentBenzidines
Alternative Parents m-Xylenes  Aniline and substituted anilines  Primary amines  Organopnictogen compounds  Hydrochlorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzidine - M-xylene - Xylene - Aniline or substituted anilines - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Hydrochloride - Primary amine - Organonitrogen compound - Amine - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzidines. These are organic compounds containing the benzidine skeleton, made up of a biphenyl ring system substituted at the 4- and 4'-positions with a unsubstituted amine group.
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.

9 results found

Lot NumberCertificate TypeDateItem
I2502763Certificate of AnalysisSep 04, 2025 T105329
H2528595Certificate of AnalysisAug 30, 2025 T105329
H2528597Certificate of AnalysisAug 30, 2025 T105329
D23011055Certificate of AnalysisApr 17, 2023 T105329
D23011061Certificate of AnalysisApr 17, 2023 T105329
D23011062Certificate of AnalysisApr 17, 2023 T105329
F2406052Certificate of AnalysisApr 17, 2023 T105329
G2404050Certificate of AnalysisApr 17, 2023 T105329
L2405053Certificate of AnalysisApr 17, 2023 T105329
Chemical and Physical Properties
SensitivityAir & Moisture & Light Sensitive.
Melt Point(°C)≥300°C
Molecular Weight313.300 g/mol
XLogP3
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass312.116 Da
Monoisotopic Mass312.116 Da
Topological Polar Surface Area52.000 Ų
Heavy Atom Count20
Formal Charge0
Complexity226.000
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 Count3
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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