1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene, also known as Michler's ketone, is an organic compound with the chemical formula C22H23N. It is a yellow crystalline solid that is widely used as a fluorescent brightening agent, particularly in the textile and paper industries. 1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene exhibits strong fluorescence properties, which makes it an effective whitening agent. It is also used as a dye intermediate and a reagent in chemical analysis. Michler's ketone is synthesized by the condensation of 4,4'-dimethylaminobenzaldehyde with indene, and it is known for its sensitivity to light, which can lead to degradation over time.

4364-49-2

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Basic information
1. Product Name: 1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene
2. Synonyms:
3. CAS NO:4364-49-2
4. Molecular Formula:
5. Molecular Weight: 366.506
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: 1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene(CAS DataBase Reference)
10. NIST Chemistry Reference: 1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene(4364-49-2)
11. EPA Substance Registry System: 1-(4,4'-bis-dimethylamino-benzhydrylidene)-indene(4364-49-2)
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: 4364-49-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4364-49-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,6 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4364-49:
(6*4)+(5*3)+(4*6)+(3*4)+(2*4)+(1*9)=92
92 % 10 = 2
So 4364-49-2 is a valid CAS Registry Number.

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