1,4,5,8-Tetrahydro-4a,8a-ethanonaphthalen-9-one is a complex organic compound with the molecular formula C12H14O. It is a derivative of naphthalene, a bicyclic aromatic hydrocarbon, and features a unique structure with a six-membered ring fused to a five-membered ring. The compound is characterized by the presence of two carbonyl groups, one at the 9-position and the other as part of the ethanonaphthalene structure. It is a colorless to pale yellow solid and is insoluble in water but soluble in organic solvents. 1,4,5,8-tetrahydro-4a,8a-ethanonaphthalen-9-one has potential applications in the synthesis of various pharmaceuticals and agrochemicals due to its unique chemical properties and reactivity.

7239-76-1

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Basic information
1. Product Name: 1,4,5,8-tetrahydro-4a,8a-ethanonaphthalen-9-one
2. Synonyms: 4a,8a-Ethanonaphthalene-9-one, 1,4,5,8-tetrahydro-
3. CAS NO:7239-76-1
4. Molecular Formula: C₁₂H₁₄O
5. Molecular Weight: 174.239
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 300.4°C at 760 mmHg
3. Flash Point: 127.9°C
4. Appearance: N/A
5. Density: 1.12g/cm³
6. Vapor Pressure: 0.00112mmHg at 25°C
7. Refractive Index: 1.577
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: 1,4,5,8-tetrahydro-4a,8a-ethanonaphthalen-9-one(CAS DataBase Reference)
11. NIST Chemistry Reference: 1,4,5,8-tetrahydro-4a,8a-ethanonaphthalen-9-one(7239-76-1)
12. EPA Substance Registry System: 1,4,5,8-tetrahydro-4a,8a-ethanonaphthalen-9-one(7239-76-1)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 7239-76-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 7239-76-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,3 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7239-76:
(6*7)+(5*2)+(4*3)+(3*9)+(2*7)+(1*6)=111
111 % 10 = 1
So 7239-76-1 is a valid CAS Registry Number.

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