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Norbormide chemical structure, C33H25N3O3, CAS 991-42-4
2D chemical structure

Key facts

What buyers check first

Appearance
Crystals from methylene chloride + ether
Melting point
190 to 198
Solubility
PRACTICALLY INSOL IN WATER UNLESS PH IS BELOW 4
HS code
293339
Category
Rodenticides, nematicides and other pesticides
UN number
UN 2588
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Norbormide?

Plain description, key identifiers and synonyms

Norbormide is a sesquiterpenoid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
8-(hydroxy-phenyl-pyridin-2-ylmethyl)-10-[phenyl(pyridin-2-yl)methylidene]-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
CAS number
991-42-4 CAS number cross-checked
EC number
213-589-6
Molecular formula
C33H25N3O3
UNII
K4085589CZ
InChIKey
DNTHHIVFNQZZRD-UHFFFAOYSA-N
InChI
InChI=1S/C33H25N3O3/c37-31-28-22-19-23(33(39,21-13-5-2-6-14-21)25-16-8-10-18-35-25)29(30(28)32(38)36-31)27(22)26(20-11-3-1-4-12-20)24-15-7-9-17-34-24/h1-19,22,28-30,39H,(H,36,37,38)
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C(=C2C3C=C(C2C4C3C(=O)NC4=O)C(C5=CC=CC=C5)(C6=CC=CC=N6)O)C7=CC=CC=N7

Synonyms

  • Raticate
  • Shoxin
  • Nobormide
  • Mcneil 1025
  • Compound S-6,999
  • MCN 1025
  • ENT 51,762
  • 4,7-Methano-1H-isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-5-(hydroxyphenyl-2-pyridinylmethyl)-8-(phenyl-2-pyridinylmethylene)-
  • 5-Norbornene-2,3-dicarboximide, 5-(alpha-hydroxy-alpha-2-pyridylbenzyl)-7-(alpha-2-pyridylbenzylidene)-
  • 5-(alpha-Hydroxy-alpha-2-pyridylbenzyl)-7-(alpha-2-pyridylbenzylidene)-5-norbornene-2,3-dicarboximide
  • Raticide
  • Nobormide [ISO-French]
  • Compound S 6999
  • 8-(hydroxy-phenyl-pyridin-2-ylmethyl)-10-[phenyl(pyridin-2-yl)methylidene]-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
  • 5-Norbornene-2,3-dicarboximide, 5-(alpha-hydroxy-alpha-2-pyridylbenzyl)-7-(alpha-2-pyridylbenzylidene)
  • 3a,4,7,7a-Tetrahydro-5-(hydroxyphenyl-2-pyridinylmethyl)-8-(phenyl-2-pyridinylmethylene)-4,7-methano-1H-isoindole-1,3(2H)-dione
  • 5-[Hydroxy(phenyl)(pyridin-2-yl)methyl]-8-[phenyl(pyridin-2-yl)methylidene]-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione

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

Appearance
Crystals from methylene chloride + etherexp.
Melting point
190 to 198exp.
Solubility
PRACTICALLY INSOL IN WATER UNLESS PH IS BELOW 4exp.

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
511.58 g/molcalc.
Exact mass
511.1896 Dacalc.
LogP (octanol/water)
4.29calc.
Topological polar surface area
92.18 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
5calc.
Heavy atoms
39calc.
Rings
7calc.
Aromatic rings
4calc.
Fraction sp3 carbons
0.15calc.
Formal charge
0calc.
Stereocentres
5calc.
Lipinski rule of five
Passes (1 violation)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=C1NC(=O)C2C3C(C(c4ccccc4)c4ccccn4)=CC(C3=C(c3ccccc3)c3ccccn3)C12

O=C1NC(=O)C2C3C(C(c4ccccc4)c4ccccn4)=CC(C3=C(c3ccccc3)c3ccccn3)C12

7 rings, 38 atoms.

16 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2588

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

Norbormide suppliers

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  • United States, RensselaerUnclaimed profile
    NorbormideGrade, purity and minimum order on request
    Price on request
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Where suppliers are based

1 supplier in 1 country

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Norbormide 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

Specific rodenticidal control of rat (Rattus) species.

Pharmacological actions

  • Rodenticides

How it is made

By condensation of 2-benzoylpyridine & cyclopentadiene followed by reaction of the obtained fulvene with maleimide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 650-004-00-7

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Norbormide is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Norbormide?

Norbormide is a sesquiterpenoid.

What is the CAS number of Norbormide?

The CAS registry number of Norbormide is 991-42-4.

What is the molecular formula and weight of Norbormide?

The molecular formula of Norbormide is C33H25N3O3 and its molar mass is 511.58 g/mol.

What is Norbormide used for?

Specific rodenticidal control of rat (Rattus) species.

Is Norbormide hazardous?

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

What is the HS code of Norbormide?

Norbormide is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Norbormide?

CompoundList lists 1 supplier of Norbormide in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Norbormide?

Suppliers quote Norbormide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

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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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