α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane is a complex organic compound with the chemical formula C29H24ClO2PS. It is a phosphorus-containing reagent used in organic synthesis, specifically as a protecting group for amines. α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane is characterized by its ability to form a stable intermediate with amines, protecting them from unwanted side reactions during complex organic synthesis. The presence of the p-chlorophenylthio group and the ethoxycarbonylmethylene moiety contributes to its reactivity and selectivity in various chemical transformations. It is an important tool in the field of organic chemistry, particularly in the synthesis of pharmaceuticals and other complex molecules where selective protection of functional groups is crucial.

20521-97-5

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Basic information
1. Product Name: α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane
2. Synonyms:
3. CAS NO:20521-97-5
4. Molecular Formula:
5. Molecular Weight: 490.99
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: α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane(CAS DataBase Reference)
10. NIST Chemistry Reference: α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane(20521-97-5)
11. EPA Substance Registry System: α-(p-Chlorphenylthio)ethoxycarbonylmethylenetriphenylphosphorane(20521-97-5)
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: 20521-97-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 20521-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20521-97:
(7*2)+(6*0)+(5*5)+(4*2)+(3*1)+(2*9)+(1*7)=75
75 % 10 = 5
So 20521-97-5 is a valid CAS Registry Number.

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