Phosphanthridine, also known as 1-phospha-2,4,6-cycloheptatriene, is a heterocyclic compound containing a phosphorus atom in its structure. It is a highly reactive molecule with the formula C6H7P, featuring a phosphorus atom bonded to three carbon atoms in a planar ring structure. Phosphanthridine is an analog of benzene, where one of the carbon atoms is replaced by a phosphorus atom. Due to its high reactivity, phosphanthridine is not stable under normal conditions and is typically generated in situ for specific reactions. It has been studied for its potential applications in organic synthesis, particularly in the formation of phosphorus-containing compounds, and as a ligand in coordination chemistry.

161-95-5

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Basic information
1. Product Name: Phosphanthridine
2. Synonyms: Phosphanthridine
3. CAS NO:161-95-5
4. Molecular Formula: C13H9 P
5. Molecular Weight: 196.18
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 161-95-5.mol
Chemical Properties
1. Melting Point: N/A
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: Phosphanthridine(CAS DataBase Reference)
10. NIST Chemistry Reference: Phosphanthridine(161-95-5)
11. EPA Substance Registry System: Phosphanthridine(161-95-5)
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: 161-95-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 161-95-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,6 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161-95:
(5*1)+(4*6)+(3*1)+(2*9)+(1*5)=55
55 % 10 = 5
So 161-95-5 is a valid CAS Registry Number.

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