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Aromatic building blocks

Benzidine, tetramethyl-

Also known as Tetramethyl-(1,1'-biphenyl)-4,4'-diamine, (1,1'-Biphenyl)-4,4'-diamine, tetramethyl-, (1,1'-Biphenyl)-4,4'-diamine, tetramethyl-(9CI)

CAS 34314-06-2Formula C16H20N2Molar mass 240.35 g/mol
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Benzidine, tetramethyl- chemical structure, C16H20N2, CAS 34314-06-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
34314-06-2
Formula
C16H20N2
Molar mass
240.35 g/mol
HS code
292159
Category
Aromatic building blocks

What is Benzidine, tetramethyl-?

Plain description, key identifiers and synonyms

Benzidine, tetramethyl- is a chemical substance with the molecular formula C16H20N2 and a molar mass of 240.35 g/mol. Its CAS registry number is 34314-06-2. The IUPAC name is 4-(4-aminophenyl)-2,3,5,6-tetramethylaniline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-(4-aminophenyl)-2,3,5,6-tetramethylaniline
CAS number
34314-06-2 CAS number cross-checkedOther or deprecated CAS: 2389-99-3
Molecular formula
C16H20N2
InChIKey
MREDQCDWPUJMJO-UHFFFAOYSA-N
InChI
InChI=1S/C16H20N2/c1-9-11(3)16(18)12(4)10(2)15(9)13-5-7-14(17)8-6-13/h5-8H,17-18H2,1-4H3
SMILES (canonical and isomeric)
CC1=C(C(=C(C(=C1C2=CC=C(C=C2)N)C)C)N)C

Synonyms

  • Tetramethyl-(1,1'-biphenyl)-4,4'-diamine
  • (1,1'-Biphenyl)-4,4'-diamine, tetramethyl-
  • (1,1'-Biphenyl)-4,4'-diamine, tetramethyl-(9CI)
  • 2,3,5,6-Tetramethyl-[1,1'-biphenyl]-4,4'-diamine
  • tetramethylebenzidine
  • 2,3,5,6-Tetramethylbenzidine
  • 2,3,5,6-Tetramethyl[1,1'-biphenyl]-4,4'-diamine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
240.35 g/molcalc.
Exact mass
240.1626 Dacalc.
LogP (octanol/water)
3.75calc.
Topological polar surface area
52.04 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.25calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(-c2ccccc2)cc1

c1ccc(-c2ccccc2)cc1

2 rings, 12 atoms, the Biphenyl ring system.

32,228 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Benzidine, tetramethyl- suppliers

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Benzidine, tetramethyl- price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Benzidine, tetramethyl- is traded under.

HS 2921.59Indicative HS code

Aromatic polyamines and their derivatives, salts thereof, other

World exports in 2024
$510M
−0.4% vs 2023, imports $488M
2019 to 2024
Top exporters
  1. China26.6%
  2. Japan16.6%
  3. India * partner reported12.4%
Top importers
  1. United States17.9%
  2. Germany11.6%
  3. South Korea7.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Benzidine, tetramethyl- is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Benzidine, tetramethyl-, based on the data on this page

What is Benzidine, tetramethyl-?

Benzidine, tetramethyl- is a chemical substance with the molecular formula C16H20N2 and a molar mass of 240.35 g/mol. Its CAS registry number is 34314-06-2. The IUPAC name is 4-(4-aminophenyl)-2,3,5,6-tetramethylaniline.

What is the CAS number of Benzidine, tetramethyl-?

The CAS registry number of Benzidine, tetramethyl- is 34314-06-2. Other or deprecated CAS numbers: 2389-99-3.

What is the molecular formula and weight of Benzidine, tetramethyl-?

The molecular formula of Benzidine, tetramethyl- is C16H20N2 and its molar mass is 240.35 g/mol.

What is Benzidine, tetramethyl- used for?

Known uses and roles of Benzidine, tetramethyl- include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Benzidine, tetramethyl- hazardous?

No GHS hazard classification for Benzidine, tetramethyl- is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Benzidine, tetramethyl-?

Benzidine, tetramethyl- is usually classified under HS code 292159 (Aromatic polyamines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Benzidine, tetramethyl-?

Post a free request on CompoundList and suppliers of Benzidine, tetramethyl- will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Benzidine, tetramethyl-?

Suppliers quote Benzidine, tetramethyl- on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Benzidine, tetramethyl-

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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