"2,2,8,8-tetramethyl-5,11-diphenyl-4,6,10,12-tetraoxa-5,11-dibora-1,3,7,9(1,4)-tetrabenzena-cyclododecaphane" is a complex organic compound with a unique structure. It consists of a cyclododecaphane core, which is a 12-sided ring system, with four benzene rings fused to it. The compound also features a tetraoxa (four oxygen atoms) and dibora (two boron atoms) bridge, which connects two of the benzene rings. Additionally, it has two phenyl groups attached to the bridge and four methyl groups on the cyclododecaphane core. This molecule is characterized by its large, rigid structure and potential applications in materials science and supramolecular chemistry.

1655-78-3

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Basic information
1. Product Name: 2,2,8,8-tetramethyl-5,11-diphenyl-4,6,10,12-tetraoxa-5,11-dibora-1,3,7,9(1,4)-tetrabenzena-cyclododecaphane
2. Synonyms:
3. CAS NO:1655-78-3
4. Molecular Formula:
5. Molecular Weight: 628.383
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: 2,2,8,8-tetramethyl-5,11-diphenyl-4,6,10,12-tetraoxa-5,11-dibora-1,3,7,9(1,4)-tetrabenzena-cyclododecaphane(CAS DataBase Reference)
10. NIST Chemistry Reference: 2,2,8,8-tetramethyl-5,11-diphenyl-4,6,10,12-tetraoxa-5,11-dibora-1,3,7,9(1,4)-tetrabenzena-cyclododecaphane(1655-78-3)
11. EPA Substance Registry System: 2,2,8,8-tetramethyl-5,11-diphenyl-4,6,10,12-tetraoxa-5,11-dibora-1,3,7,9(1,4)-tetrabenzena-cyclododecaphane(1655-78-3)
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: 1655-78-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1655-78-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,5 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1655-78:
(6*1)+(5*6)+(4*5)+(3*5)+(2*7)+(1*8)=93
93 % 10 = 3
So 1655-78-3 is a valid CAS Registry Number.

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