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Heterocyclic building blocks

Pyrazineethanethiol

Also known as 2-Pyrazinylethanethiol, 2-Pyrazineethanethiol, 2-(pyrazin-2-yl)ethanethiol

CAS 35250-53-4Formula C6H8N2SMolar mass 140.21 g/molEC 609-107-2
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 7 suppliers listed
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Pyrazineethanethiol chemical structure, C6H8N2S, CAS 35250-53-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
35250-53-4
Formula
C6H8N2S
Molar mass
140.21 g/mol
EC number
609-107-2
HS code
293399
Category
Heterocyclic building blocks

What is Pyrazineethanethiol?

Plain description, key identifiers and synonyms

Pyrazineethanethiol is a chemical substance with the molecular formula C6H8N2S and a molar mass of 140.21 g/mol. Its CAS registry number is 35250-53-4. The IUPAC name is 2-pyrazin-2-ylethanethiol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-pyrazin-2-ylethanethiol
CAS number
35250-53-4 CAS number cross-checked
EC number
609-107-2
Molecular formula
C6H8N2S
UNII
F7I6G0E56F
MDL number
MFCD00053160
InChIKey
QKVWBAMZPUHCMO-UHFFFAOYSA-N
InChI
InChI=1S/C6H8N2S/c9-4-1-6-5-7-2-3-8-6/h2-3,5,9H,1,4H2
SMILES (canonical and isomeric)
C1=CN=C(C=N1)CCS

Synonyms

  • 2-Pyrazinylethanethiol
  • 2-Pyrazineethanethiol
  • 2-(pyrazin-2-yl)ethanethiol
  • pyrazine ethanethiol
  • Mercaptoethylpyrazine
  • 2-Pyrazinylethylmercaptan
  • Pyrazinyl ethanethiol
  • 2-(pyrazin-2-yl)ethane-1-thiol
  • Ethanethiol, 2-pyrazinyl-
  • Pyrazinylethylmercaptan
  • 5-23-11-00173 (Beilstein Handbook Reference)
  • (2-Mercaptoethyl)pyrazine
  • 2-pyrazin-2-ylethanethiol
  • 2-(2-Mercaptoethyl)pyrazine
  • 2-pyrazineethane thiol
  • 2-pyrazin-2-ylethane-1-thiol
  • 2-Pyrazine ethanethiol
  • 2-Pyrazinyl-Ethanethiol
  • 2-Pyrazinyl-ethyl mercaptan
  • 2-(Pyrazin-2-yl), ethanethiol
  • Pyrazineethanethiol, >=97%, FG

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
140.21 g/molcalc.
Exact mass
140.0408 Dacalc.
LogP (octanol/water)
0.95calc.
Topological polar surface area
25.78 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.33calc.
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, c1cnccn1

c1cnccn1

1 ring, 6 atoms, the Pyrazine ring system.

6,118 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H301Toxic if swallowed.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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

Pyrazineethanethiol suppliers

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Where suppliers are based

7 suppliers in 1 country

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Pyrazineethanethiol 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

Functional uses

  • Flavouring and nutrient

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active 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 Pyrazineethanethiol 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 Pyrazineethanethiol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Pyrazineethanethiol?

Pyrazineethanethiol is a chemical substance with the molecular formula C6H8N2S and a molar mass of 140.21 g/mol. Its CAS registry number is 35250-53-4. The IUPAC name is 2-pyrazin-2-ylethanethiol.

What is the CAS number of Pyrazineethanethiol?

The CAS registry number of Pyrazineethanethiol is 35250-53-4.

What is the molecular formula and weight of Pyrazineethanethiol?

The molecular formula of Pyrazineethanethiol is C6H8N2S and its molar mass is 140.21 g/mol.

What is Pyrazineethanethiol used for?

Known uses and roles of Pyrazineethanethiol include building blocks in research and laboratory, screening compounds in research and laboratory and flavouring and nutrient.

Is Pyrazineethanethiol hazardous?

Pyrazineethanethiol carries the GHS signal word "Danger". Main hazards: toxic if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Pyrazineethanethiol?

Pyrazineethanethiol 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 Pyrazineethanethiol?

CompoundList lists 7 suppliers of Pyrazineethanethiol in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Pyrazineethanethiol?

Suppliers quote Pyrazineethanethiol 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 Pyrazineethanethiol

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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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