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Fluorescent probes and labels

NBD-Cl

Also known as 4-Chloro-7-nitrobenzofurazan, 4-Chloro-7-nitro-2,1,3-benzoxadiazole, 2,1,3-Benzoxadiazole, 4-chloro-7-nitro-

CAS 10199-89-0Formula C6H2ClN3O3Molar mass 199.55 g/molEC 233-496-4
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant 67 suppliers listed
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NBD-Cl chemical structure, C6H2ClN3O3, CAS 10199-89-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10199-89-0
Formula
C6H2ClN3O3
Molar mass
199.55 g/mol
EC number
233-496-4
HS code
293499
Category
Fluorescent probes and labels

What is NBD-Cl?

Plain description, key identifiers and synonyms

4-chloro-7-nitrobenzofurazan is a benzoxadiazole that is 2,1,3-benzoxadiazole which is substituted at position 4 by chlorine and at position 7 by a nitro group. It has a role as an EC 1.4.3.4 (monoamine oxidase) inhibitor, a fluorescent probe, a fluorochrome and an EC 3.6.1.3 (adenosinetriphosphatase) inhibitor. It is a C-nitro compound, an organochlorine compound and a benzoxadiazole.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-chloro-7-nitro-2,1,3-benzoxadiazole
CAS number
10199-89-0 CAS number cross-checked
EC number
233-496-4
Molecular formula
C6H2ClN3O3
UNII
EQF2794IRE
MDL number
MFCD00005808
InChIKey
IGHBXJSNZCFXNK-UHFFFAOYSA-N
InChI
InChI=1S/C6H2ClN3O3/c7-3-1-2-4(10(11)12)6-5(3)8-13-9-6/h1-2H
SMILES (canonical and isomeric)
C1=C(C2=NON=C2C(=C1)Cl)[N+](=O)[O-]

Synonyms

  • 4-Chloro-7-nitrobenzofurazan
  • 4-Chloro-7-nitro-2,1,3-benzoxadiazole
  • 2,1,3-Benzoxadiazole, 4-chloro-7-nitro-
  • NBD-chloride
  • 7-Chloro-4-nitrobenzofurazan
  • 1-Chloro-4-nitrobenzoxadiazole
  • NBD-C 1
  • 7-Chloro-4-nitrobenzo-2-oxa-1,3-diazole
  • 4-Nitro-7-chlorobenzofurazan
  • NBF-Cl
  • Chloronitrobenzoxadiazole
  • Nitrobenzoxadiazole Chloride
  • Chloride, NBD
  • NBF Cl
  • Chloride, Nitrobenzoxadiazole
  • 4 Chloro 7 nitrobenzofurazan
  • 7 Chloro 4 nitrobenzofurazan
  • Nbd chloride
  • 4-Chloro-7-nitrobenzo-2-oxa-1,3-diazole
  • 4-Chloro-7-nitrobenzo[c][1,2,5]oxadiazole
  • Benzofurazan, 4-chloro-7-nitro-
  • 4-Chloro-7-nitrobenz-2-oxa-1,3-diazole
  • 7-Nitro-4-chlorobenzofurazan
  • 4-chloro-7-nitrobenzo[c]1,2,5-oxadiazole
  • 4-Chloro-7-nitrobenzofurazan, BioReagent, suitable for fluorescence, >=97.0% (HPLC)
Show all 35 synonyms
  • 4-Chloro-7-nitrobenzofurazane
  • 4-Chloro-7-nitrobenzofurazan, 7-Chloro-4-nitro-2,1,3-benzoxadiazole, NBD-Cl, NSC 228140,
  • Shokat-update-comp17
  • nchembio866-comp17
  • 4-chloro-7-nitrobenzo-2,1,3-oxadiazole
  • 4-Chloro-7-nitro-1,2,3-benzoxadiazole
  • 7-Chloro-4-nitrobenz-2-oxa-1,3-diazole
  • 4-chloro-7-nitro-benzofurazan
  • 7-chloro-4-nitro-benzofurazan
  • 4-Chloro-7-nitrobenzofurazan, 98%

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
199.55 g/molcalc.
Exact mass
198.9785 Dacalc.
LogP (octanol/water)
1.78calc.
Topological polar surface area
82.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
1calc.
Heavy atoms
13calc.
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, c1ccc2nonc2c1

c1ccc2nonc2c1

2 rings, 9 atoms, the 2,1,3-Benzoxadiazole ring system.

557 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)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H301Toxic if swallowed.
  • H302Harmful if swallowed.
Precautionary statements (8)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P317If swallowed: Get medical help.
  • 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

NBD-Cl suppliers

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

All 67 suppliers
30 of 30 offers
  • 001Chemical
    China, HangzhouUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
    View
  • 1st Scientific LLC
    China, NanjingUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • 3WAY Pharm Inc
    China, ShanghaiUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • Aaron Chemicals LLC.
    China, NanjingUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • AAT Bioquest
    United States, PleasantonUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • AbaChemScene, LLC
    United States, Monmouth JunctionUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • ABCR GmbH & CO. KG
    GermanyUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • Accel Scientific S.L.
    Spain, BarcelonaUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • Accela ChemBio Inc.
    United States, San DiegoUnclaimed profile
    NBD-ClGrade, purity and minimum order on request
    Price on request
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  • Achemo Scientific Limited
    China, KowloonUnclaimed profile
    NBD-ClGrade, 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

67 suppliers in 13 countries

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NBD-Cl 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

Pharmacological actions

  • Enzyme Inhibitors
  • Indicators and Reagents

Roles

  • dye
  • enzyme inhibitor
  • fluorescent dye
  • fluorescent probe
  • fluorochrome
  • probe

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

Frequently asked questions

Quick answers about NBD-Cl, based on the data on this page

What is NBD-Cl?

4-chloro-7-nitrobenzofurazan is a benzoxadiazole that is 2,1,3-benzoxadiazole which is substituted at position 4 by chlorine and at position 7 by a nitro group. It has a role as an EC 1.4.3.4 (monoamine oxidase) inhibitor, a fluorescent probe, a fluorochrome and an EC 3.6.1.3 (adenosinetriphosphatase) inhibitor.

What is the CAS number of NBD-Cl?

The CAS registry number of NBD-Cl is 10199-89-0.

What is the molecular formula and weight of NBD-Cl?

The molecular formula of NBD-Cl is C6H2ClN3O3 and its molar mass is 199.55 g/mol.

What is NBD-Cl used for?

Known uses and roles of NBD-Cl include fluorescent probes in research and laboratory, biochemical and pharmacological tools in research and laboratory, dye, enzyme inhibitor, fluorescent dye and 5 more.

Is NBD-Cl hazardous?

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

What is the HS code of NBD-Cl?

NBD-Cl 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 NBD-Cl?

CompoundList lists 67 suppliers of NBD-Cl in United States, China, United Kingdom, Germany and 9 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of NBD-Cl?

Suppliers quote NBD-Cl 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 NBD-Cl

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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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