4-Chlor-2,5-difluor-styrol, also known as 4-chloro-2,5-difluorostyrene, is an organic compound with the chemical formula C8H5ClF2. It is a halogenated derivative of styrene, featuring a chlorine atom at the 4-position and two fluorine atoms at the 2 and 5 positions on the benzene ring. This colorless liquid is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and specialty chemicals. Due to its reactive nature, it is typically handled under controlled conditions to prevent unwanted side reactions. The compound's unique structure endows it with specific properties that make it valuable in the production of certain types of polymers and other advanced materials.
656-19-9
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Basic information
- Product Name: 4-Chlor-2,5-difluor-styrol
- Synonyms:
- CAS NO:656-19-9
- Molecular Formula:
- Molecular Weight: 174.578
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 4-Chlor-2,5-difluor-styrol(CAS DataBase Reference)
- NIST Chemistry Reference: 4-Chlor-2,5-difluor-styrol(656-19-9)
- EPA Substance Registry System: 4-Chlor-2,5-difluor-styrol(656-19-9)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 656-19-9(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 656-19-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.Calculate Digit Verification of CAS Registry Number 656-19:
(5*6)+(4*5)+(3*6)+(2*1)+(1*9)=79
79 % 10 = 9
So 656-19-9 is a valid CAS Registry Number.
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4-Chlor-2,5-difluor-styrol
