23421-66-1

Basic information

• Product Name: 1,2,3,3a,3b,7a-hexachloro-2,3,3a,3b,4,6a,7,7a-octahydro-1H-3,4,7-(methanetriyl)cyclopenta[a]pentalene
• CAS NO: 23421-66-1
• Molecular Formula: C₁₂H₈Cl₆
• Molecular Weight: 364.9099
• Mol File: 23421-66-1.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 424.3°C at 760 mmHg
• Flash Point: 217°C
• Density: 1.81g/cm³
• Vapor Pressure: 5.15E-07mmHg at 25°C
• Refractive Index: 1.684
• CAS DataBase Reference: 1,2,3,3a,3b,7a-hexachloro-2,3,3a,3b,4,6a,7,7a-octahydro-1H-3,4,7-(methanetriyl)cyclopenta[a]pentalene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,3a,3b,7a-hexachloro-2,3,3a,3b,4,6a,7,7a-octahydro-1H-3,4,7-(methanetriyl)cyclopenta[a]pentalene(23421-66-1)
• EPA Substance Registry System: 1,2,3,3a,3b,7a-hexachloro-2,3,3a,3b,4,6a,7,7a-octahydro-1H-3,4,7-(methanetriyl)cyclopenta[a]pentalene(23421-66-1)

Safety Data

• Hazardous Substances Data: 23421-66-1(Hazardous Substances Data)

Upstream product

• 127-09-3 sodium acetate 
• 74416-10-7 C₁₃H₁₂Cl₆O₃S 
• 74416-11-8 C₁₃H₁₂Cl₆O₃S 
• 74416-03-8 C₁₂H₁₀Cl₆O 
• 74416-04-9 C₁₂H₁₀Cl₆O 
• 74416-00-5 C₁₄H₁₂Cl₆O₂ 
• 74416-01-6 C₁₄H₁₂Cl₆O₂ 
• 309-00-2 aldrin 

Downstream Products

• 13366-37-5 photodieldrin 
• 74415-98-8 C₂₀H₁₂Cl₆O₄ 

Relevant articles and documents

Photoreactivities of the antiseptics dehydroacetic acid and sodium dehydroacetate used in cosmetics

Dehydroacetic acid (1) was found to induce photoisomerization, converting aldrin (3) and dieldrin (4) into photoaldrin (5) and photodieldrin (6), respectively, not only when irradiated with artificial light at wavelengths longer than 290nm in air but also when exposed to sunlight in air. By contrast, sodium dehydroacetate (2) induced both photoisomerization, primarily converting 3 to 5 and photoepoxidation, partially forming 6. Thus, because 2 is usually used as a water-soluble antiseptic, photo-erethism might occur due to the isomerization and epoxidation properties of this compound. The difference between the photoreactivity of 1 and that of 2 might be attributed to the spin density of the odd electron on the carbon atom in the respective radicals that were formed after photo-excited 1 and 2 caused H-abstraction.

Some regioselective reactions of photoaldrin and photodieldrin

-