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Heterocyclic building blocks

Tenilsetam

Also known as Tenilsetamum, 3-(2-Thienyl)piperazinone, 3-(thiophen-2-yl)piperazin-2-one

CAS 86696-86-8Formula C8H10N2OSMolar mass 182.25 g/molEC 978-346-5
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Tenilsetam chemical structure, C8H10N2OS, CAS 86696-86-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
86696-86-8
Formula
C8H10N2OS
Molar mass
182.25 g/mol
EC number
978-346-5
HS code
293499
Category
Heterocyclic building blocks

What is Tenilsetam?

Plain description, key identifiers and synonyms

Tenilsetam is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-thiophen-2-ylpiperazin-2-one
CAS number
86696-86-8Other or deprecated CAS: 146504-17-8, 85606-97-9
EC number
978-346-5
Molecular formula
C8H10N2OS
UNII
O4Q7XM74N6
MDL number
MFCD00867779
InChIKey
BBACKDMGYMXYLE-UHFFFAOYSA-N
InChI
InChI=1S/C8H10N2OS/c11-8-7(9-3-4-10-8)6-2-1-5-12-6/h1-2,5,7,9H,3-4H2,(H,10,11)
SMILES (canonical and isomeric)
C1CNC(=O)C(N1)C2=CC=CS2

Synonyms

  • Tenilsetamum
  • 3-(2-Thienyl)piperazinone
  • 3-(thiophen-2-yl)piperazin-2-one
  • 3-thiophen-2-ylpiperazin-2-one
  • 3-(2-thienyl)piperazin-2-one
  • 3-Thiophen-2-yl-piperazin-2-one
  • Piperazinone, 3-(2-thienyl)-
  • 3-(2-thienyl)-piperazin-2-one
  • PAS 997
  • 2-Piperazinone, 3-(2-thienyl)-
  • HR 029
  • (+-)-3-(2-Thienyl)-2-piperazinone
  • Piperazinone, 3-(2-thienyl)-, (+-)-
  • (R)-3-Thiophen-2-yl-piperazin-2-one
  • (S)-3-Thiophen-2-yl-piperazin-2-one
  • 3-(Thiophen-2-yl)-3,4,5,6-tetrahydropyrazin-2-ol

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
182.25 g/molcalc.
Exact mass
182.0514 Dacalc.
LogP (octanol/water)
0.51calc.
Topological polar surface area
41.13 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
12calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.38calc.
Formal charge
0calc.
Stereocentres
1calc.
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, O=C1NCCNC1c1cccs1

O=C1NCCNC1c1cccs1

2 rings, 12 atoms. This chemical is the scaffold itself.

7 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: 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

Tenilsetam suppliers

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

All 2 suppliers
  • Axon Medchem
    United States, RestonUnclaimed profile
    TenilsetamGrade, purity and minimum order on request
    Price on request
    View
  • Synblock Inc
    Canada, MontrealUnclaimed profile
    TenilsetamGrade, purity and minimum order on request
    Price on request
    View

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

2 suppliers in 2 countries

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Tenilsetam 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 Tenilsetam 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 Tenilsetam is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Tenilsetam?

Tenilsetam is an organic molecular entity.

What is the CAS number of Tenilsetam?

The CAS registry number of Tenilsetam is 86696-86-8. Other or deprecated CAS numbers: 146504-17-8, 85606-97-9.

What is the molecular formula and weight of Tenilsetam?

The molecular formula of Tenilsetam is C8H10N2OS and its molar mass is 182.25 g/mol.

What is Tenilsetam used for?

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

Is Tenilsetam hazardous?

Tenilsetam carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Tenilsetam?

Tenilsetam 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 Tenilsetam?

CompoundList lists 2 suppliers of Tenilsetam in Canada and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Tenilsetam?

Suppliers quote Tenilsetam 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 Tenilsetam

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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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