2,4-bis-salicylidenamino-phenol, also known as 2,4-Bis(salicylideneaminato)phenol or BSP, is a chemical compound with the molecular formula C20H14N2O4. It is a Schiff base derived from the condensation of two molecules of salicylaldehyde with one molecule of phenol, resulting in a yellow crystalline solid. BSP is widely used as a colorimetric indicator for the determination of metal ions, particularly copper(II) ions, due to its ability to form a stable, colored complex with these ions. The compound is also employed in various analytical applications, such as titrations and spectrophotometry, and has potential applications in the development of sensors and other analytical devices.

4588-99-2

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Basic information
1. Product Name: 2,4-bis-salicylidenamino-phenol
2. Synonyms:
3. CAS NO:4588-99-2
4. Molecular Formula:
5. Molecular Weight: 332.359
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: 2,4-bis-salicylidenamino-phenol(CAS DataBase Reference)
10. NIST Chemistry Reference: 2,4-bis-salicylidenamino-phenol(4588-99-2)
11. EPA Substance Registry System: 2,4-bis-salicylidenamino-phenol(4588-99-2)
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: 4588-99-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4588-99-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,8 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4588-99:
(6*4)+(5*5)+(4*8)+(3*8)+(2*9)+(1*9)=132
132 % 10 = 2
So 4588-99-2 is a valid CAS Registry Number.

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