Bis-(2-phenylazo-phenyl)-disulfide, also known as Michler's ketone, is an organic compound with the chemical formula C20H16N4S2. It is a yellow crystalline solid that is soluble in organic solvents and slightly soluble in water. bis-(2-phenylazo-phenyl)-disulfide is formed by the reaction of 2-phenylazo-phenol with sulfur dichloride, resulting in a disulfide bridge connecting two phenylazo-phenyl groups. Michler's ketone is widely used as a dyestuff, particularly in the production of yellow pigments, and as a reagent in analytical chemistry for the detection of certain metal ions. It is also employed in the synthesis of other azo compounds and as a photosensitizer in photodynamic therapy. Due to its potential health and environmental risks, handling and disposal of Michler's ketone must be done with caution, adhering to safety regulations.

2233-66-1

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Basic information
1. Product Name: bis-(2-phenylazo-phenyl)-disulfide
2. Synonyms:
3. CAS NO:2233-66-1
4. Molecular Formula:
5. Molecular Weight: 426.566
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: bis-(2-phenylazo-phenyl)-disulfide(CAS DataBase Reference)
10. NIST Chemistry Reference: bis-(2-phenylazo-phenyl)-disulfide(2233-66-1)
11. EPA Substance Registry System: bis-(2-phenylazo-phenyl)-disulfide(2233-66-1)
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: 2233-66-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2233-66-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,3 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 2233-66:
(6*2)+(5*2)+(4*3)+(3*3)+(2*6)+(1*6)=61
61 % 10 = 1
So 2233-66-1 is a valid CAS Registry Number.

2233-66-1Upstream product

2233-66-1Downstream Products

101418-85-3 (2-methylsulfanyl-phenyl)-phenyl-diazene

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