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Heterocyclic building blocks

Sulfapyrazine

Also known as 2-Sulfanilamidopyrazine, Pyrazine, sulfanilamido-, N1-2-Pyrazinylsulfanilamide

CAS 116-44-9Formula C10H10N4O2SMolar mass 250.28 g/mol
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Sulfapyrazine chemical structure, C10H10N4O2S, CAS 116-44-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
116-44-9
Formula
C10H10N4O2S
Molar mass
250.28 g/mol
HS code
293590
Category
Heterocyclic building blocks

What is Sulfapyrazine?

Plain description, key identifiers and synonyms

Sulfapyrazine is a chemical substance with the molecular formula C10H10N4O2S and a molar mass of 250.28 g/mol. Its CAS registry number is 116-44-9. The IUPAC name is 4-amino-N-pyrazin-2-ylbenzenesulfonamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-amino-N-pyrazin-2-ylbenzenesulfonamide
CAS number
116-44-9 CAS number cross-checked
Molecular formula
C10H10N4O2S
UNII
8BE3C727OG
InChIKey
YEAICDDXRUOCKJ-UHFFFAOYSA-N
InChI
InChI=1S/C10H10N4O2S/c11-8-1-3-9(4-2-8)17(15,16)14-10-7-12-5-6-13-10/h1-7H,11H2,(H,13,14)
SMILES (canonical and isomeric)
C1=CC(=CC=C1N)S(=O)(=O)NC2=NC=CN=C2

Synonyms

  • 2-Sulfanilamidopyrazine
  • Pyrazine, sulfanilamido-
  • N1-2-Pyrazinylsulfanilamide
  • Sulfanilamide, N1-(pyrazinyl)-
  • N(sup 1)-2-Pyrazinylsulfonilamide
  • 4-Amino-N-pyrazinylbenzenesulfonamide
  • Sulfanilamide, N(sup 1)-(pyrazinyl)-
  • Benzenesulfonamide, 4-amino-N-pyrazinyl-
  • 4-Amino-N-(pyrazinyl)benzenesulfonamide
  • 5-25-10-00140 (Beilstein Handbook Reference)
  • Sulfanilamide, N1-(pyrazinyl)-(8CI)
  • 4-Amino-N-(pyrazin-2-yl)benzenesulfonamide
  • 4-amino-N-pyrazin-2-ylbenzenesulfonamide
  • 4-amino-N-(pyrazin-2-yl)benzene-1-sulfonamide
  • Benzenesulfonamide, 4-amino-N-2-pyrazinyl-
  • Sulfanilamidopyrazin
  • pyrazine, 2-sulphanilamido-
  • 4-Amino-N-pyrazinyl-benzenesulfonamide
  • 4-amino-N-pyrazin-2-yl-benzenesulfonamide

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
250.28 g/molcalc.
Exact mass
250.0524 Dacalc.
LogP (octanol/water)
0.86calc.
Topological polar surface area
97.97 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
3calc.
Heavy atoms
17calc.
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, O=S(=O)(Nc1cnccn1)c1ccccc1

O=S(=O)(Nc1cnccn1)c1ccccc1

2 rings, 16 atoms, the N-Pyrazin-2-ylbenzenesulfonamide ring system.

65 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.

Sulfapyrazine suppliers

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Sulfapyrazine 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 Sulfapyrazine is traded under.

HS 2935.90Indicative HS code

Sulphonamides, other

World exports in 2024
$5.64B
−11.0% vs 2023, imports $8.56B
2019 to 2024
Top exporters
  1. Ireland43.1%
  2. China12.0%
  3. India * partner reported9.5%
Top importers
  1. United States23.6%
  2. Slovenia19.1%
  3. Spain11.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Sulfapyrazine?

Sulfapyrazine is a chemical substance with the molecular formula C10H10N4O2S and a molar mass of 250.28 g/mol. Its CAS registry number is 116-44-9. The IUPAC name is 4-amino-N-pyrazin-2-ylbenzenesulfonamide.

What is the CAS number of Sulfapyrazine?

The CAS registry number of Sulfapyrazine is 116-44-9.

What is the molecular formula and weight of Sulfapyrazine?

The molecular formula of Sulfapyrazine is C10H10N4O2S and its molar mass is 250.28 g/mol.

What is Sulfapyrazine used for?

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

Is Sulfapyrazine hazardous?

No GHS hazard classification for Sulfapyrazine 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 Sulfapyrazine?

Sulfapyrazine is usually classified under HS code 293590 (Sulphonamides, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sulfapyrazine?

Post a free request on CompoundList and suppliers of Sulfapyrazine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Sulfapyrazine?

Suppliers quote Sulfapyrazine 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 Sulfapyrazine

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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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