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Heterocyclic building blocks

Thienopyridine

Also known as thieno[3,2-b]pyridine

CAS 272-67-3Formula C7H5NSMolar mass 135.19 g/mol
6 suppliers listed
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Thienopyridine chemical structure, C7H5NS, CAS 272-67-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
272-67-3
Formula
C7H5NS
Molar mass
135.19 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Thienopyridine?

Plain description, key identifiers and synonyms

Thienopyridine is a chemical substance with the molecular formula C7H5NS and a molar mass of 135.19 g/mol. Its CAS registry number is 272-67-3. The IUPAC name is thieno[3,2-b]pyridine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
thieno[3,2-b]pyridine
CAS number
272-67-3 CAS number cross-checked
Molecular formula
C7H5NS
MDL number
MFCD11110437
InChIKey
DBDCNCCRPKTRSD-UHFFFAOYSA-N
InChI
InChI=1S/C7H5NS/c1-2-7-6(8-4-1)3-5-9-7/h1-5H
SMILES (canonical and isomeric)
C1=CC2=C(C=CS2)N=C1

Synonyms

  • thieno[3,2-b]pyridine

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
135.19 g/molcalc.
Exact mass
135.0143 Dacalc.
LogP (octanol/water)
2.3calc.
Topological polar surface area
12.89 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
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, c1cnc2ccsc2c1

c1cnc2ccsc2c1

2 rings, 9 atoms. This chemical is the scaffold itself.

556 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.

Thienopyridine suppliers

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

All 6 suppliers
6 of 6 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

6 suppliers in 3 countries

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Thienopyridine 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 Thienopyridine is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Thienopyridine?

Thienopyridine is a chemical substance with the molecular formula C7H5NS and a molar mass of 135.19 g/mol. Its CAS registry number is 272-67-3. The IUPAC name is thieno[3,2-b]pyridine.

What is the CAS number of Thienopyridine?

The CAS registry number of Thienopyridine is 272-67-3.

What is the molecular formula and weight of Thienopyridine?

The molecular formula of Thienopyridine is C7H5NS and its molar mass is 135.19 g/mol.

What is Thienopyridine used for?

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

Is Thienopyridine hazardous?

No GHS hazard classification for Thienopyridine 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 Thienopyridine?

Thienopyridine is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thienopyridine?

CompoundList lists 6 suppliers of Thienopyridine in China, United States and Canada. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Thienopyridine?

Suppliers quote Thienopyridine 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 Thienopyridine

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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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