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Heterocyclic building blocks

4-Styrylpyridine

Also known as 4-Stilbazole, gamma-Stilbazole, Pyridine, 4-styryl-

CAS 103-31-1Formula C13H11NMolar mass 181.24 g/molEC 203-099-0
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 5 suppliers listed
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4-Styrylpyridine chemical structure, C13H11N, CAS 103-31-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
103-31-1
Formula
C13H11N
Molar mass
181.24 g/mol
EC number
203-099-0
HS code
293339
Category
Heterocyclic building blocks

What is 4-Styrylpyridine?

Plain description, key identifiers and synonyms

4-styrylpyridine is a member of styrenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[(E)-2-phenylethenyl]pyridine
CAS number
103-31-1 CAS number cross-checkedOther or deprecated CAS: 5097-93-8
EC number
203-099-0
Molecular formula
C13H11N
UNII
W9282V2UV3
MDL number
MFCD00137749
InChIKey
QKHRGPYNTXRMSL-VOTSOKGWSA-N
InChI
InChI=1S/C13H11N/c1-2-4-12(5-3-1)6-7-13-8-10-14-11-9-13/h1-11H/b7-6+
Canonical SMILES
C(=Cc1ccncc1)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)/C=C/C2=CC=NC=C2

Synonyms

  • 4-Stilbazole
  • gamma-Stilbazole
  • Pyridine, 4-styryl-
  • Pyridine, 4-(2-phenylethenyl)-
  • (E)-4-styrylpyridine
  • 4-(2-Phenylvinyl)pyridine
  • 4-[(E)-2-Phenylethenyl]pyridine
  • Ba 35998
  • 4-Stilbazole, (E)-
  • 4-(2-phenylethenyl)pyridine
  • Ba 35988
  • 4-(2-Phenylvinyl)pyridine, trans-
  • 4-[(1E)-2-phenylethenyl]pyridine
  • 4-(2-phenylethenyl)pyridine, E
  • 4-((1E)-2-phenylvinyl)pyridine
  • trans-4-stilbazole
  • 4-((1E)-2-Phenylethenyl)pyridine
  • 4-[(E)-2-phenylvinyl]pyridine
  • 4-[(E)-styryl]pyridine
  • 4-trans-Styrylpyridine
  • (e)-4-stilbazole
  • trans-4-styrylpyridine
  • Pyridine, 4-(2-phenylethenyl)-, (E)-
  • (E)-Stilbazole
  • pyridine, trans-4-styryl-
Show all 31 synonyms
  • 4-((E)-Styryl)-pyridine
  • (E)-4-(2-phenylethenyl)pyridine
  • 4-(2-Phenylethenyl)pyridine, (E)
  • Pyridine, 4-styryl-, (E)-
  • pyridine, 4-[(E)-2-phenylethenyl]-
  • Pyridine, 4-((1E)-2-phenylethenyl)-

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
181.24 g/molcalc.
Exact mass
181.0891 Dacalc.
LogP (octanol/water)
3.25calc.
Topological polar surface area
12.89 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
14calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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, C(=Cc1ccncc1)c1ccccc1

C(=Cc1ccncc1)c1ccccc1

2 rings, 14 atoms.

198 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

4-Styrylpyridine suppliers

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

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Where suppliers are based

5 suppliers in 5 countries

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4-Styrylpyridine 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

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 4-Styrylpyridine is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

The HS code shown for 4-Styrylpyridine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Styrylpyridine, based on the data on this page

What is 4-Styrylpyridine?

4-styrylpyridine is a member of styrenes.

What is the CAS number of 4-Styrylpyridine?

The CAS registry number of 4-Styrylpyridine is 103-31-1. Other or deprecated CAS numbers: 5097-93-8.

What is the molecular formula and weight of 4-Styrylpyridine?

The molecular formula of 4-Styrylpyridine is C13H11N and its molar mass is 181.24 g/mol.

What is 4-Styrylpyridine used for?

Known uses and roles of 4-Styrylpyridine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 4-Styrylpyridine hazardous?

4-Styrylpyridine carries the GHS signal word "Danger". Main hazards: causes skin irritation, causes serious eye damage, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 4-Styrylpyridine?

4-Styrylpyridine is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Styrylpyridine?

CompoundList lists 5 suppliers of 4-Styrylpyridine in Canada, Germany, Netherlands, Ukraine and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 4-Styrylpyridine?

Suppliers quote 4-Styrylpyridine 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 4-Styrylpyridine

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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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