2,2,5,5-Tetramethyl-3-pyrrolidone-1-oxyl hydrazone, also known as 2,2,5,5-tetramethyl-3-pyrrolidinyl-1-oxyl (TEMPO) hydrazone, is a stable and commercially available form of the widely used organic radical, TEMPO. 2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone is a pale yellow solid that is soluble in water and various organic solvents. It is commonly used as a catalyst in various chemical reactions, particularly in oxidation processes, due to its ability to selectively oxidize primary alcohols to aldehydes and secondary alcohols to ketones. The hydrazone form of TEMPO is preferred for storage and handling purposes, as it is less sensitive to air and moisture compared to the free radical form. Upon activation, the hydrazone can be converted back to the active TEMPO radical, making it a convenient and efficient catalyst for a range of applications in organic synthesis and industrial processes.
19805-82-4
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Basic information
- Product Name: 2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone
- Synonyms:
- CAS NO:19805-82-4
- Molecular Formula:
- Molecular Weight: 170.235
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone(CAS DataBase Reference)
- NIST Chemistry Reference: 2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone(19805-82-4)
- EPA Substance Registry System: 2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone(19805-82-4)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 19805-82-4(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 19805-82-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,0 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.Calculate Digit Verification of CAS Registry Number 19805-82:
(7*1)+(6*9)+(5*8)+(4*0)+(3*5)+(2*8)+(1*2)=134
134 % 10 = 4
So 19805-82-4 is a valid CAS Registry Number.
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2,2,5,5-tetramethyl-3-pyrrolidone-1-oxyl hydrazone
