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Heterocyclic building blocks

Etap

CAS 2575731-47-2Formula C18H17N3OMolar mass 291.35 g/mol
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Etap chemical structure, C18H17N3O, CAS 2575731-47-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2575731-47-2
Formula
C18H17N3O
Molar mass
291.35 g/mol
HS code
293399
Category
Heterocyclic building blocks

What is Etap?

Plain description, key identifiers and synonyms

Etap is a chemical substance with the molecular formula C18H17N3O and a molar mass of 291.35 g/mol. Its CAS registry number is 2575731-47-2. The IUPAC name is 1-[2-[4-(4-ethylphenyl)triazol-1-yl]phenyl]ethanone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-[2-[4-(4-ethylphenyl)triazol-1-yl]phenyl]ethanone
CAS number
2575731-47-2
Molecular formula
C18H17N3O
InChIKey
QPOAHTRZQUAMRS-UHFFFAOYSA-N
InChI
InChI=1S/C18H17N3O/c1-3-14-8-10-15(11-9-14)17-12-21(20-19-17)18-7-5-4-6-16(18)13(2)22/h4-12H,3H2,1-2H3
SMILES (canonical and isomeric)
CCC1=CC=C(C=C1)C2=CN(N=N2)C3=CC=CC=C3C(=O)C

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
291.35 g/molcalc.
Exact mass
291.1372 Dacalc.
LogP (octanol/water)
3.7calc.
Topological polar surface area
47.78 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
22calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.17calc.
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(-c2cn(-c3ccccc3)nn2)cc1

c1ccc(-c2cn(-c3ccccc3)nn2)cc1

3 rings, 17 atoms, the 1,4-Diphenyl-1,2,3-triazole ring system.

111 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.

Etap suppliers

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Etap 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 Etap is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Etap?

Etap is a chemical substance with the molecular formula C18H17N3O and a molar mass of 291.35 g/mol. Its CAS registry number is 2575731-47-2. The IUPAC name is 1-[2-[4-(4-ethylphenyl)triazol-1-yl]phenyl]ethanone.

What is the CAS number of Etap?

The CAS registry number of Etap is 2575731-47-2.

What is the molecular formula and weight of Etap?

The molecular formula of Etap is C18H17N3O and its molar mass is 291.35 g/mol.

What is Etap used for?

Known uses and roles of Etap include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Etap hazardous?

No GHS hazard classification for Etap 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 Etap?

Etap is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Etap?

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

What is the price of Etap?

Suppliers quote Etap 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 Etap

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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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