Ethyltriphenylphosphonium tetrafluoroborate (ETPPB) is a quaternary phosphonium salt with the chemical formula C22H22BF4P. It is a colorless, crystalline solid that is soluble in organic solvents and is widely used as a phase-transfer catalyst in organic synthesis, particularly in the preparation of various organic compounds. ETPPB is known for its ability to facilitate the transfer of reactants between immiscible phases, such as between an aqueous and an organic phase, thereby enhancing the efficiency of reactions. It is also used in the synthesis of pharmaceuticals, agrochemicals, and other specialty chemicals. The compound is stable under normal conditions but should be handled with care due to its potential toxicity and irritant properties.

2994-53-8

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Basic information
1. Product Name: Ethyltriphenylphosphonium Tetrafluoroborate "
2. Synonyms: Ethyltriphenylphosphonium Tetrafluoroborate ";[ETPP]BF4
3. CAS NO:2994-53-8
4. Molecular Formula: C20H20P.BF4
5. Molecular Weight: 378.16
6. EINECS: -0
7. Product Categories: N/A
Chemical Properties
1. Melting Point: 127 °C
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Ethyltriphenylphosphonium Tetrafluoroborate "(CAS DataBase Reference)
10. NIST Chemistry Reference: Ethyltriphenylphosphonium Tetrafluoroborate "(2994-53-8)
11. EPA Substance Registry System: Ethyltriphenylphosphonium Tetrafluoroborate "(2994-53-8)
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: 2994-53-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2994-53-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,9 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2994-53:
(6*2)+(5*9)+(4*9)+(3*4)+(2*5)+(1*3)=118
118 % 10 = 8
So 2994-53-8 is a valid CAS Registry Number.

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