CAS 1763-23-1: Perfluorooctanesulfonic acid

Description: Perfluorooctanesulfonic acid (PFOS) is a synthetic perfluoroalkyl substance characterized by a long carbon chain with a sulfonic acid functional group. It is a colorless, odorless, and highly stable compound, known for its exceptional resistance to heat, water, and oil, which makes it useful in various industrial applications, including firefighting foams, stain-resistant coatings, and surfactants. PFOS is highly soluble in water and has a strong tendency to bioaccumulate in living organisms due to its persistence in the environment. Its chemical stability and resistance to degradation raise concerns regarding its environmental impact and potential health risks, leading to regulatory scrutiny and restrictions in many countries. PFOS has been associated with adverse health effects, including developmental and reproductive toxicity, prompting efforts to phase out its use in favor of safer alternatives. Overall, while PFOS has useful properties, its environmental persistence and potential health risks have made it a subject of significant regulatory attention.

Formula: C₈HF₁₇O₃S

InChI: InChI=1S/C8HF17O3S/c9-1(10,3(13,14)5(17,18)7(21,22)23)2(11,12)4(15,16)6(19,20)8(24,25)29(26,27)28/h(H,26,27,28)

InChI key: InChIKey=YFSUTJLHUFNCNZ-UHFFFAOYSA-N

SMILES: O=S(=O)(O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F

Synonyms:

• 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluoro-1-octanesulfonic acid
• 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-
• 1-Octanesulfonic acid, heptadecafluoro-
• 1-Perfluorooctanesulfonic acid
• Ef 101
• Eftop EF 101
• Heptadecafluoro-1-octanesulfonic acid
• Perfluoro-n-octanesulfonic acid
• Perfluorooctanesulfonic acid
• Perfluorooctylsulfonic acid

PFAS EF-28 Native Mixture 1 µg/mL in Methanol:Water

CAS: 120226-60-0 16517-11-6 1763-23-12058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 678-41-1 67905-19-5 72629-94-8 754-91-6 757124-72-4

• Color and Shape: Mixture

PFAS Superfund Mixture 2 µg/mL in Methanol:Water

CAS: 120226-60-0 13252-13-6 16517-11-6 1763-23-12058-94-8 2355-31-9 2706-90-3 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5 375-85-9 375-95-1 376-06-7 39108-34-4 67905-19-5 754-91-6 757124-72-4

• Color and Shape: Mixture

EU 2023/915 Food Testing PFAS-4 Mixture (PFOA, PFOS, PFNA, PFHxS) 1 µg/mL in Methanol:Water

CAS: 1763-23-1335-67-1 355-46-4 375-95-1

• Color and Shape: Mixture

DIN EN 17892:2024-08 PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 13252-13-6 1763-23-12058-94-8 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 377-73-1 39108-34-4 68259-12-1 72629-94-8 749786-16-1 754-91-6 756426-58-1 757124-72-4 791563-89-8 79780-39-5 919005-14-4

• Color and Shape: Mixture

EU Groundwater Testing PFAS Mixture (w/o C6O4) 10-100 µg/mL in Methanol:Water

CAS: 13252-13-6 16517-11-6 1763-23-12058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 647-42-7 678-39-7 67905-19-5 72629-94-8 919005-14-4

• Color and Shape: Mixture

EPA Method 8327 PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 1763-23-12058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 68259-12-1 72629-94-8 754-91-6 757124-72-4

• Color and Shape: Mixture

EPA Method 533 PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 113507-82-7 13252-13-6 151772-58-6 1763-23-12058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 377-73-1 39108-34-4 73606-19-6 757124-72-4 83329-89-9 863090-89-5 919005-14-4

• Color and Shape: Mixture

EPA Method 1633 PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 113507-82-7 1260224-54-1 13252-13-6 151772-58-6 1691-99-2 1763-23-12058-94-8 2355-31-9 24448-09-7 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 335-77-3 355-46-4 356-02-5 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 39108-34-4 4151-50-2 72629-94-8 73606-19-6 754-91-6 757124-72-4 812-70-4 83329-89-9 863090-89-5 914637-49-3 919005-14-4 98789-57-2

• Color and Shape: Mixture

Perfluorooctanesulfonic acid 100 µg/mL in Methanol:Water

CAS: 1763-23-1

• Color and Shape: Single Solution

PFAS Mixture Food Testing EU 2022/1431 10 µg/mL in Methanol:Water

CAS: 13252-13-6 1763-23-12058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 34455-29-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 68259-12-1 72629-94-8 749786-16-1 754-91-6 756426-58-1 763051-92-9 791563-89-8 79780-39-5 80475-32-7 919005-14-4

• Color and Shape: Mixture

Perfluorooctanesulfonic acid

CAS: 1763-23-1

• Formula: C₈HF₁₇O₃S
• Color and Shape: Neat
• Molecular weight: 500.13

Korea cosmetics testing PFAS Mixture 1 µg/mL in Methanol:Water

CAS: 112281-77-3 1763-23-1335-67-1 335-76-2 375-95-1

• Color and Shape: Mixture

UK Drinking Water Inspectorate (DWI) PFAS-48 Mixture A 10 µg/mL in Methanol:Water

CAS: 16517-11-6 1763-23-12058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 356-02-5 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 67905-19-5 68259-12-1 72629-94-8 749786-16-1 757124-72-4 79780-39-5 812-70-4 914637-49-3

• Color and Shape: Mixture

UK Drinking Water Inspectorate (DWI) PFAS-48 Kit 10 µg/mL in Methanol:Water

CAS: 113507-82-7 13252-13-6 13252-14-7 151772-58-6 16517-11-6 1691-99-2 1763-23-12058-94-8 2355-31-9 24448-09-7 2706-90-3 2706-91-4 27619-97-2 2991-50-6 30334-69-1 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 335-77-3 34455-29-3 355-46-4 356-02-5 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 39108-34-4 4151-50-2 41997-13-1 646-83-3 67905-19-5 68259-12-1 72629-94-8 749786-16-1 754-91-6 756426-58-1 757124-72-4 763051-92-9 79780-39-5 812-70-4 863090-89-5 914637-49-3 919005-14-4

• Color and Shape: Kit

AOAC 2023.003 PFAS Mixture 1-100 µg/mL in Methanol:Water

CAS: 120226-60-0 13252-13-6 1763-23-12058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 68259-12-1 72629-94-8 749786-16-1 754-91-6 756426-58-1 757124-72-4 763051-92-9 791563-89-8 79780-39-5 919005-14-4

• Color and Shape: Mixture

EPA Method 537.1 PFAS Mixture 100 µg/mL in Methanol:Water

CAS: 13252-13-6 1763-23-12058-94-8 2355-31-9 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-73-5 375-85-9 375-95-1 376-06-7 72629-94-8 73606-19-6 83329-89-9 919005-14-4

• Color and Shape: Mixture

Massachusetts PFAS Mixture 2 µg/mL in Methanol:Water

CAS: 1763-23-1335-67-1 335-76-2 355-46-4 375-85-9 375-95-1

• Color and Shape: Mixture

PFASiMix 100 µg/mL in Methanol:Water (96:4)

CAS: 113507-82-7 13252-13-6 151772-58-6 1763-23-12058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-93-8 27619-94-9 27619-96-1 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 72629-94-8 863090-89-5 919005-14-4

• Color and Shape: Mixture

PFAA Mixture 100 µg/mL in Methanol:Water

CAS: 1763-23-12058-94-8 307-24-4 307-55-1 335-67-1 335-76-2 375-73-5 375-85-9 375-95-1 376-06-7 72629-94-8

• Formula: C₄HF₉O₃S
• Color and Shape: Mixture
• Molecular weight: 300.10

EU Drinking Water Directive PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 1763-23-12058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5 375-85-9 375-92-8 375-95-1 68259-12-1 72629-94-8 749786-16-1 791563-89-8 79780-39-5

• Color and Shape: Mixture