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Screening compounds

Endrin aldehyde

Also known as SD 7442, 3,4,5,6,6,7-hexachloropentacyclo[6.3.0.02,4.03,7.05,9]undecane-10-carbaldehyde, 1,2,4-Methenocyclopenta(cd)pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1alpha,2beta,2abeta,4beta,4abeta,5beta,6abeta,6bbeta,7R*)-

CAS 7421-93-4Formula C12H8Cl6OMolar mass 380.91 g/molEC 625-033-3
GHS signal word: Warning. Pictograms: Harmful or irritant
Get quotes Safety data
Endrin aldehyde chemical structure, C12H8Cl6O, CAS 7421-93-4
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Solid
Melting point
235 °C
Solubility
In water 2.4 × 10⁻² mg/L at 25 °C
HS code
291300
Category
Screening compounds
UN number
UN 2761
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Endrin aldehyde?

Plain description, key identifiers and synonyms

Endrin aldehyde is a solid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3,4,5,6,6,7-hexachloropentacyclo[6.3.0.02,4.03,7.05,9]undecane-10-carbaldehyde
CAS number
7421-93-4 CAS number cross-checkedOther or deprecated CAS: 77287-19-5
EC number
625-033-3
Molecular formula
C12H8Cl6O
MDL number
MFCD00152481
InChIKey
HCTWZIFNBBCVGM-UHFFFAOYSA-N
InChI
InChI=1S/C12H8Cl6O/c13-8-5-3(2-19)1-4-6(5)9(14,12(8,17)18)11(16)7(4)10(8,11)15/h2-7H,1H2
SMILES (canonical and isomeric)
C1C(C2C3C1C4C5(C2(C(C3(C45Cl)Cl)(Cl)Cl)Cl)Cl)C=O

Synonyms

  • SD 7442
  • 3,4,5,6,6,7-hexachloropentacyclo[6.3.0.02,4.03,7.05,9]undecane-10-carbaldehyde
  • 1,2,4-Methenocyclopenta(cd)pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1alpha,2beta,2abeta,4beta,4abeta,5beta,6abeta,6bbeta,7R*)-
  • 1,2,4-Methenocyclopenta(cd)pentalene-5-carboxaldehyde
  • 1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde
  • 3,4,5,6,6,7-hexachloropentacyclo(6.3.0.02,4.03,7.05,9)undecane-10-carbaldehyde
  • 1,2,4-Methenocyclopenta(cd)pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1alpha,2beta,2abeta,4beta,4abeta,5beta,6abeta,6bbeta,7s*)-
  • 1,2,4-METHENOCYCLOPENTA(cd)PENTALENE-5-CARBOXALDEHYDE, 2,2a,3,3,4,7-HEXACHLORODECAHYDRO-,(1R,2R,2aR,4S,4aS,5R,6aR,6bR,7S)-rel-
  • 1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1alpha,2beta,2abeta,4beta,4abeta,5beta,6abeta,6bbeta,7s*)-
  • 1,2,4-METHENOCYCLOPENTA[cd]PENTALENE-5-CARBOXALDEHYDE, 2,2a,3,3,4,7-HEXACHLORODECAHYDRO-,(1R,2R,2aR,4S,4aS,5R,6aR,6bR,7S)-rel-
  • 1,2,4-methanecyclopenta(c,d)pentalene-5-carboxaldehyde,2,2a,3,3,4,7-hexachlorodecahydro
  • 1,2,4-Methenecyclopenta(c,d)pentalene-r-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro
  • 1,2,4Methenocyclopenta(cd)pentalene5carboxaldehyde, 2,2a,3,3,4,7hexachlorodecahydro, (1alpha,2beta,2abeta,4beta,4abeta,5beta,6abeta,6bbeta,7R*)
  • Endrin aldehyde Standard
  • 1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1R,2R,2aR,4S,4aS,5R,6aR,6bR,7S)-rel-
  • Endrin Aldehyde, vial of 1 g, 99%, analytical standard
  • 1,1,2,2a,6a,6b-Hexachlorodecahydro-2,3,6-(methanetriyl)cyclopropa[cd]azulene-5-carbaldehyde

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

Physical form
Solidexp.
Melting point
235 °Cexp.
Solubility
In water 2.4 × 10⁻² mg/L at 25 °Cexp.
Vapour pressure
2 × 10⁻⁷ mm Hg at 25 °Cexp.

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
380.91 g/molcalc.
Exact mass
377.8706 Dacalc.
LogP (octanol/water)
3.81calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
19calc.
Rings
5calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.92calc.
Formal charge
0calc.
Stereocentres
9calc.
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, C1CC2C3C1C1CC3C3C1C23

C1CC2C3C1C1CC3C3C1C23

5 rings, 11 atoms.

1 other chemical 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.
  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (6)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2761

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

Endrin aldehyde suppliers

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Endrin aldehyde 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

Not commercially used but occurs as an impurity of endrin.

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 Endrin aldehyde is traded under.

HS 2913.00Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912

World exports in 2024
$53.8M
−28.4% vs 2023, imports $62M
2019 to 2024
Top exporters
  1. China62.0%
  2. India * partner reported22.7%
  3. Japan6.6%
Top importers
  1. India * partner reported37.9%
  2. Japan9.9%
  3. Germany7.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Endrin aldehyde, based on the data on this page

What is Endrin aldehyde?

Endrin aldehyde is a solid.

What is the CAS number of Endrin aldehyde?

The CAS registry number of Endrin aldehyde is 7421-93-4. Other or deprecated CAS numbers: 77287-19-5.

What is the molecular formula and weight of Endrin aldehyde?

The molecular formula of Endrin aldehyde is C12H8Cl6O and its molar mass is 380.91 g/mol.

What is Endrin aldehyde used for?

Not commercially used but occurs as an impurity of endrin.

Is Endrin aldehyde hazardous?

Endrin aldehyde carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause long lasting harmful effects to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Endrin aldehyde?

Endrin aldehyde is usually classified under HS code 291300 (Halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Endrin aldehyde?

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What is the price of Endrin aldehyde?

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Guides for buyers

Practical guides that help when you source, ship or handle Endrin aldehyde

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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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