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Aromatic building blocks

Heptacene

CAS 258-38-8Formula C30H18Molar mass 378.47 g/mol
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Heptacene chemical structure, C30H18, CAS 258-38-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
258-38-8
Formula
C30H18
Molar mass
378.47 g/mol
HS code
290290
Category
Aromatic building blocks

What is Heptacene?

Plain description, key identifiers and synonyms

Heptacene is an acene that consists of seven ortho-fused benzene rings in a rectilinear arrangement. It is an acene and a member of heptacenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
heptacene
CAS number
258-38-8 CAS number cross-checked
Molecular formula
C30H18
UNII
BC329D8R2F
InChIKey
KDEZIUOWTXJEJK-UHFFFAOYSA-N
InChI
InChI=1S/C30H18/c1-2-6-20-10-24-14-28-18-30-16-26-12-22-8-4-3-7-21(22)11-25(26)15-29(30)17-27(28)13-23(24)9-19(20)5-1/h1-18H
SMILES (canonical and isomeric)
C1=CC=C2C=C3C=C4C=C5C=C6C=C7C=CC=CC7=CC6=CC5=CC4=CC3=CC2=C1

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
378.47 g/molcalc.
Exact mass
378.1409 Dacalc.
LogP (octanol/water)
8.61calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
30calc.
Rings
7calc.
Aromatic rings
7calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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, c1ccc2cc3cc4cc5cc6cc7ccccc7cc6cc5cc4cc3cc2c1

c1ccc2cc3cc4cc5cc6cc7ccccc7cc6cc5cc4cc3cc2c1

7 rings, 30 atoms. This chemical is the scaffold itself.

No other chemical in our database has 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.

Heptacene suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

No supplier listings yet

Post one free request and suppliers who make or trade Heptacene can send you quotes. Your contact details stay private until you accept a quote.

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Heptacene price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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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 Heptacene is traded under.

HS 2902.90Indicative HS code

Cyclic hydrocarbons, other

World exports in 2024
$612M
−6.1% vs 2023, imports $670M
2019 to 2024
Top exporters
  1. China28.0%
  2. Germany13.9%
  3. India * partner reported12.6%
Top importers
  1. Germany11.1%
  2. United States10.6%
  3. South Korea8.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Heptacene, based on the data on this page

What is Heptacene?

Heptacene is an acene that consists of seven ortho-fused benzene rings in a rectilinear arrangement. It is an acene and a member of heptacenes.

What is the CAS number of Heptacene?

The CAS registry number of Heptacene is 258-38-8.

What is the molecular formula and weight of Heptacene?

The molecular formula of Heptacene is C30H18 and its molar mass is 378.47 g/mol.

What is Heptacene used for?

Known uses and roles of Heptacene include building blocks in research and laboratory.

Is Heptacene hazardous?

No GHS hazard classification for Heptacene 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 Heptacene?

Heptacene is usually classified under HS code 290290 (Cyclic hydrocarbons, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Heptacene?

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

What is the price of Heptacene?

Suppliers quote Heptacene 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 Heptacene

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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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