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Heterocyclic building blocks

Flavazole

Also known as Pyrazolo(3,4-b)quinoxaline, pyrazolo[3,4-b]quinoxaline, 1H-Pyrazolo[3,4-b]quinoxaline

CAS 269-75-0Formula C9H6N4Molar mass 170.18 g/mol
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Flavazole chemical structure, C9H6N4, CAS 269-75-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
269-75-0
Formula
C9H6N4
Molar mass
170.18 g/mol
HS code
293399
Category
Heterocyclic building blocks

What is Flavazole?

Plain description, key identifiers and synonyms

Flavazole is a chemical substance with the molecular formula C9H6N4 and a molar mass of 170.18 g/mol. Its CAS registry number is 269-75-0. The IUPAC name is 1H-pyrazolo[4,3-b]quinoxaline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1H-pyrazolo[4,3-b]quinoxaline
CAS number
269-75-0 CAS number cross-checkedOther or deprecated CAS: 863637-42-7
Molecular formula
C9H6N4
InChIKey
APDMFICDKLFJJL-UHFFFAOYSA-N
InChI
InChI=1S/C9H6N4/c1-2-4-7-6(3-1)11-8-5-10-13-9(8)12-7/h1-5H,(H,10,12,13)
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)N=C3C=NNC3=N2

Synonyms

  • Pyrazolo(3,4-b)quinoxaline
  • pyrazolo[3,4-b]quinoxaline
  • 1H-Pyrazolo[3,4-b]quinoxaline
  • 2H-Pyrazolo[3,4-b]quinoxaline
  • 1H-pyrazolo[4,3-b]quinoxaline
  • 1H-Pyrazolo(3,4-b)quinoxaline
  • Flavazol
  • pyrazolo[4,5-b]quinoxaline

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
170.18 g/molcalc.
Exact mass
170.0592 Dacalc.
LogP (octanol/water)
1.51calc.
Topological polar surface area
54.46 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
Rings
3calc.
Aromatic rings
3calc.
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, c1ccc2nc3n[nH]cc3nc2c1

c1ccc2nc3n[nH]cc3nc2c1

3 rings, 13 atoms. This chemical is the scaffold itself.

5 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.

Flavazole suppliers

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

No supplier listings yet

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

Frequently asked questions

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

What is Flavazole?

Flavazole is a chemical substance with the molecular formula C9H6N4 and a molar mass of 170.18 g/mol. Its CAS registry number is 269-75-0. The IUPAC name is 1H-pyrazolo[4,3-b]quinoxaline.

What is the CAS number of Flavazole?

The CAS registry number of Flavazole is 269-75-0. Other or deprecated CAS numbers: 863637-42-7.

What is the molecular formula and weight of Flavazole?

The molecular formula of Flavazole is C9H6N4 and its molar mass is 170.18 g/mol.

What is Flavazole used for?

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

Is Flavazole hazardous?

No GHS hazard classification for Flavazole 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 Flavazole?

Flavazole 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 Flavazole?

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

What is the price of Flavazole?

Suppliers quote Flavazole 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 Flavazole

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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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