Anthracene-9,10-diylidene-bis-δ²-methanone, also known as 9,10-Anthracenedimethanone, is an organic compound with the chemical formula C₁₆H₁₀O₂. It is a derivative of anthracene, a tricyclic aromatic hydrocarbon, with two carbonyl groups (C=O) attached to the 9 and 10 positions of the anthracene ring. anthracene-9,10-diylidene-bis-δ²-methanone is characterized by its yellow crystalline appearance and is soluble in organic solvents. It is used in the synthesis of various organic compounds and dyes, particularly those with anthracene-based structures. Due to its chemical reactivity, it is important to handle anthracene-9,10-diylidene-bis-δ²-methanone with care, following proper safety protocols.

642-09-1

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Basic information
1. Product Name: anthracene-9,10-diylidene-bis-δ²-methanone
2. Synonyms:
3. CAS NO:642-09-1
4. Molecular Formula:
5. Molecular Weight: 232.238
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: anthracene-9,10-diylidene-bis-δ²-methanone(CAS DataBase Reference)
10. NIST Chemistry Reference: anthracene-9,10-diylidene-bis-δ²-methanone(642-09-1)
11. EPA Substance Registry System: anthracene-9,10-diylidene-bis-δ²-methanone(642-09-1)
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: 642-09-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 642-09-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 642-09:
(5*6)+(4*4)+(3*2)+(2*0)+(1*9)=61
61 % 10 = 1
So 642-09-1 is a valid CAS Registry Number.

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