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Screening compounds

Photodieldrin

Also known as BL 6623, 2,4,6-Metheno-2H-cyclopenta(4,5)pentaleno(1,2-b)oxirene, 2a,3,3,4,5,5a-hexachlorodecahydro-, (1aR,1bR,2S,2aS,4R,5S,5aS,5bS,6S,6aS,7R)-, 2,4,6-Metheno-2H-cyclopenta[4,5]pentaleno[1,2-b]oxirene, 2a,3,3,4,5,5a-hexachlorodecahydro-, (1aR,1bR,2S,2aS,4R,5S,5aS,5bS,6S,6aS,7R)-

CAS 13366-73-9Formula C12H8Cl6OMolar mass 380.91 g/mol
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Photodieldrin chemical structure, C12H8Cl6O, CAS 13366-73-9
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Crystals
Solubility
Less than 0.1 mg/mL at 59 °F (NTP, 1992)
HS code
291090
Category
Screening compounds
UN number
UN 2811
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Photodieldrin?

Plain description, key identifiers and synonyms

Photodieldrin appears as beige crystals or white powder. (NTP, 1992)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,2S,3S,4S,5R,7S,8S,9R,10S,11S,13R)-3,4,5,6,6,7-hexachloro-12-oxahexacyclo[6.5.0.02,10.03,7.05,9.011,13]tridecane
CAS number
13366-73-9 CAS number cross-checked
Molecular formula
C12H8Cl6O
UNII
B9M2Y7GMR6
InChIKey
LOVDWMTZZYUFMA-MFIHWASWSA-N
InChI
InChI=1S/C12H8Cl6O/c13-8-9(14)3-1-4-5(2(3)7-6(1)19-7)11(9,16)12(17,18)10(4,8)15/h1-8H/t1-,2+,3-,4+,5-,6-,7+,8-,9-,10+,11-/m0/s1
Canonical SMILES
ClC1C2(Cl)C3C4C5OC5C5C4C1(Cl)C(Cl)(C53)C2(Cl)Cl
Isomeric SMILES
[C@H]12[C@H]3[C@H]([C@H]4[C@@H]1[C@]5([C@H]([C@@]3([C@@]4(C5(Cl)Cl)Cl)Cl)Cl)Cl)[C@@H]6[C@H]2O6

Synonyms

  • BL 6623
  • 2,4,6-Metheno-2H-cyclopenta(4,5)pentaleno(1,2-b)oxirene, 2a,3,3,4,5,5a-hexachlorodecahydro-, (1aR,1bR,2S,2aS,4R,5S,5aS,5bS,6S,6aS,7R)-
  • 2,4,6-Metheno-2H-cyclopenta[4,5]pentaleno[1,2-b]oxirene, 2a,3,3,4,5,5a-hexachlorodecahydro-, (1aR,1bR,2S,2aS,4R,5S,5aS,5bS,6S,6aS,7R)-
  • 2,4,7-Metheno-1H-cyclopenta(a)pentalene, 1,1,2,3,3a,7a-hexachloro-5,6-epoxydecahydro-, stereoisomer
  • 2,4,7-Metheno-1H-cyclopenta[a]pentalene, 1,1,2,3,3a,7a-hexachloro-5,6-epoxydecahydro-, stereoisomer
  • (+/-)-Photodieldrin
  • (1aR,1bR,2S,2aS,4R,5S,5aS,5bS,6S,6aS,7R)-2a,3,3,4,5,5a-Hexachlorodecahydro-2,4,6-metheno-2H-cyclopenta[4,5]pentaleno[1,2-b]oxirene
  • 10-Oxa-3,6-exo-4,5,13,13-hexachlorohexacyclo[6,3,1,13,6,19,11,02,7,05,12]tetradecane

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
Crystalsexp.
Solubility
Less than 0.1 mg/mL at 59 °F (NTP, 1992)exp.

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)
3.62calc.
Topological polar surface area
12.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
19calc.
Rings
6calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
11calc.
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, C1C2CC3C1C1C2C2C4OC4C1C32

C1C2CC3C1C1C2C2C4OC4C1C32

6 rings, 13 atoms.

No other chemical in our database has this scaffold.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 2811

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

Photodieldrin suppliers

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Photodieldrin 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

Use classes: Degradation product-dieldrins.

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 Photodieldrin is traded under.

HS 2910.90Indicative HS code

Epoxides with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives…

World exports in 2024
$467M
−2.9% vs 2023, imports $501M
2019 to 2024
Top exporters
  1. Netherlands24.5%
  2. China19.7%
  3. Japan18.8%
Top importers
  1. United States17.6%
  2. Germany16.3%
  3. China10.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Photodieldrin?

Photodieldrin appears as beige crystals or white powder. (NTP, 1992)

What is the CAS number of Photodieldrin?

The CAS registry number of Photodieldrin is 13366-73-9.

What is the molecular formula and weight of Photodieldrin?

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

What is Photodieldrin used for?

Use classes: Degradation product-dieldrins.

Is Photodieldrin hazardous?

No GHS hazard classification for Photodieldrin 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 Photodieldrin?

Photodieldrin is usually classified under HS code 291090 (Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Photodieldrin?

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

What is the price of Photodieldrin?

Suppliers quote Photodieldrin 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 Photodieldrin

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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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