Perfluoropropane-2-sulphenic acid fluoride, also known as PFOS-DA, is a chemical compound with the formula C3F7SO2F. It is an intermediate in the synthesis of perfluorooctanesulfonic acid (PFOS), a persistent and bioaccumulative substance that has been widely used in various applications such as fire-fighting foams, stain repellents, and surfactants. PFOS-DA is a colorless liquid with a high boiling point and is known for its stability and resistance to degradation. Due to concerns over the environmental and health impacts of PFOS, the production and use of PFOS and its related compounds, including PFOS-DA, have been significantly restricted under international agreements like the Stockholm Convention on Persistent Organic Pollutants.

662-17-9

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Basic information
1. Product Name: perfluoropropane-2-sulphenic acid fluoride
2. Synonyms: perfluoropropane-2-sulphenic acid fluoride
3. CAS NO:662-17-9
4. Molecular Formula:
5. Molecular Weight: 220.086
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: perfluoropropane-2-sulphenic acid fluoride(CAS DataBase Reference)
10. NIST Chemistry Reference: perfluoropropane-2-sulphenic acid fluoride(662-17-9)
11. EPA Substance Registry System: perfluoropropane-2-sulphenic acid fluoride(662-17-9)
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: 662-17-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 662-17-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,6 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 662-17:
(5*6)+(4*6)+(3*2)+(2*1)+(1*7)=69
69 % 10 = 9
So 662-17-9 is a valid CAS Registry Number.

662-17-9Upstream product

1423-18-3 bis(perfluoroisopropyl)sulfurdifluoride

662-17-9Downstream Products

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