2-Mercaptopyrazine - ≥97%(HPLC) , CAS No.38521-06-1

CAS: 38521-06-1 Cat. No.: M170065 Formula: C4H4N2S Molecular Weight: 112.15 EC Number: 809-117-9
AVAILABLE TO ORDER
GRADE & PURITY ≥97%(HPLC)
Synonyms
1H-pyrazine-2-thione | Pyrazine-2(1H)-thione | pyrazine-2-thiol | mercaptopyrazine | FT-0691851 | AKOS008093149 | AM100749 | MFCD00235012 | 1,2-dihydropyrazine-2-thione | DTXSID20395425 | 2-Mercaptopyrazine | 2-pyrazinethiol | Q-200298 | 2(1H)-Pyrazinethi
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
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Size
Germany (EU)
USA*
Price
Qty
100mg
M170065-100mg
—
6 In stock

€28.55

€43.30
Save €14.75 (34.07%)
250mg
M170065-250mg
—
3 In stock

€34.62

€51.98
Save €17.35 (33.39%)
1g
M170065-1g
—
2 In stock

€42.43

€64.13
Save €21.69 (33.83%)
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥97%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
1H-pyrazine-2-thione | Pyrazine-2(1H)-thione | pyrazine-2-thiol | mercaptopyrazine | FT-0691851 | AKOS008093149 | AM100749 | MFCD00235012 | 1,2-dihydropyrazine-2-thione | DTXSID20395425 | 2-Mercaptopyrazine | 2-pyrazinethiol | Q-200298 | 2(1H)-Pyrazinethi
Specifications & Purity
≥97%(HPLC)
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%(HPLC)
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504762677
Canonical Smiles
C1=CN=CC(=S)N1
IUPAC Name
1H-pyrazine-2-thione
InChIKey
HKAVADYDPYUPRD-UHFFFAOYSA-N
INCHI
1S/C4H4N2S/c7-4-3-5-1-2-6-4/h1-3H,(H,6,7)
Isomeric SMILES
C1=CN=CC(=S)N1
Molecular Weight
112.15
Reaxy-Rn
106973
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=106973&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassDiazines
SubclassPyrazines
Intermediate Tree Nodes Not available
Direct ParentPyrazines
Alternative Parents Thiolactams  Heteroaromatic compounds  Azacyclic compounds  Organosulfur compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyrazine - Heteroaromatic compound - Thiolactam - Azacycle - Organic nitrogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyrazines. These are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates (CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
F2303071F2303071Certificate of AnalysisMar 09, 2026 M170065
F2303150F2303150Certificate of AnalysisMar 09, 2026 M170065
F2303151F2303151Certificate of AnalysisMar 09, 2026 M170065
F2303152F2303152Certificate of AnalysisMar 09, 2026 M170065
F2303161F2303161Certificate of AnalysisMar 09, 2026 M170065
F2303165F2303165Certificate of AnalysisMar 09, 2026 M170065
Chemical and Physical Properties
SensitivityAir Sensitive,Heat Sensitive
Melt Point(°C)213 °C(dec.)
Molecular Weight112.160 g/mol
XLogP3-0.900
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass112.01 Da
Monoisotopic Mass112.01 Da
Topological Polar Surface Area56.500 Ų
Heavy Atom Count7
Formal Charge0
Complexity137.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product, and how is it determined?
This product is supplied at ≥97% purity, determined by HPLC. Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at 2–8 °C under argon. It is supplied under an argon blanket; reseal under inert gas after each use.
How is this product shipped?
This product ships chilled on wet ice. Unpack on arrival and transfer it to the storage condition stated above.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 38521-06-1, the molecular formula is C4H4N2S, and the molecular weight is 112.15 g/mol. InChIKey HKAVADYDPYUPRD-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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