Bis(β-chloraethyl)phenylphosphonat, also known as phenylphosphonodichloroethane or chlorphosphon, is an organophosphorus compound with the chemical formula C8H12Cl3OP. It is a colorless, oily liquid that is soluble in organic solvents. Bis(β-chloraethyl)phenylphosphonat is primarily used as a chemical warfare agent, specifically as a nerve agent. It inhibits the enzyme acetylcholinesterase, leading to the accumulation of acetylcholine in the nervous system, which results in various symptoms such as muscle twitching, seizures, and respiratory failure. Due to its toxicity and potential for misuse, the production and stockpiling of Bis(β-chloraethyl)phenylphosphonat are regulated under international treaties such as the Chemical Weapons Convention.

50-17-9

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Basic information
1. Product Name: Bis(β-chloraethyl)phenylphosphonat
2. Synonyms:
3. CAS NO:50-17-9
4. Molecular Formula:
5. Molecular Weight: 251.092
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: Bis(β-chloraethyl)phenylphosphonat(CAS DataBase Reference)
10. NIST Chemistry Reference: Bis(β-chloraethyl)phenylphosphonat(50-17-9)
11. EPA Substance Registry System: Bis(β-chloraethyl)phenylphosphonat(50-17-9)
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: 50-17-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 50-17-9 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 50-17:
(4*5)+(3*0)+(2*1)+(1*7)=29
29 % 10 = 9
So 50-17-9 is a valid CAS Registry Number.

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