Cis-bicyclo<4.4.0>decane-3,8-dione is a cyclic ketone with the molecular formula C10H12O2. It is a white crystalline solid that is insoluble in water but soluble in organic solvents. cis-bicyclo<4.4.0>decane-3,8-dione is characterized by its unique bicyclic structure, where two carbon rings are fused together in a cis-configuration, meaning the two carbonyl groups (C=O) are on the same side of the molecule. Cis-bicyclo<4.4.0>decane-3,8-dione is an important intermediate in organic synthesis, particularly in the preparation of various pharmaceuticals and agrochemicals. It is also used as a building block for the synthesis of complex organic molecules due to its rigid and strained ring system, which can influence the reactivity and selectivity of chemical reactions.

939-20-8

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Basic information
1. Product Name: cis-bicyclo<4.4.0>decane-3,8-dione
2. Synonyms:
3. CAS NO:939-20-8
4. Molecular Formula:
5. Molecular Weight: 166.22
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: cis-bicyclo<4.4.0>decane-3,8-dione(CAS DataBase Reference)
10. NIST Chemistry Reference: cis-bicyclo<4.4.0>decane-3,8-dione(939-20-8)
11. EPA Substance Registry System: cis-bicyclo<4.4.0>decane-3,8-dione(939-20-8)
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: 939-20-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 939-20-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,3 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 939-20:
(5*9)+(4*3)+(3*9)+(2*2)+(1*0)=88
88 % 10 = 8
So 939-20-8 is a valid CAS Registry Number.

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