Symmetric difluorodiphosphoric acid diphenyl ester, also known as Ph2P(O)OP(O)Ph2F2, is an organophosphorus compound characterized by its symmetrical structure and difluorodiphosphoric acid core. It is a colorless, crystalline solid that is sensitive to moisture and air, and it is commonly used as a reagent in organic synthesis, particularly in the formation of phosphorus-containing compounds. Due to its reactivity, it is often handled under anhydrous conditions to prevent hydrolysis. The compound is also known for its potential applications in the development of new materials and as a precursor in the synthesis of various phosphorus-based chemicals.

1648-40-4

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Basic information
1. Product Name: symm. Difluorodiphosphorsaeure-diphenylester
2. Synonyms:
3. CAS NO:1648-40-4
4. Molecular Formula:
5. Molecular Weight: 334.153
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: symm. Difluorodiphosphorsaeure-diphenylester(CAS DataBase Reference)
10. NIST Chemistry Reference: symm. Difluorodiphosphorsaeure-diphenylester(1648-40-4)
11. EPA Substance Registry System: symm. Difluorodiphosphorsaeure-diphenylester(1648-40-4)
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: 1648-40-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1648-40-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1648-40:
(6*1)+(5*6)+(4*4)+(3*8)+(2*4)+(1*0)=84
84 % 10 = 4
So 1648-40-4 is a valid CAS Registry Number.

1648-40-4Upstream product

1648-40-4Downstream Products

1494-79-7 C₁₂H₁₁FNO₂P

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