CAS 375-73-5: Perfluorobutanesulfonic acid

Description: Perfluorobutanesulfonic acid (PFBS) is a synthetic perfluoroalkyl substance characterized by a fully fluorinated carbon chain of four carbons, with a sulfonic acid functional group. Its chemical formula is C4F9SO3H, and it is known for its high thermal stability and resistance to degradation, making it persistent in the environment. PFBS is a colorless liquid or solid at room temperature and is soluble in water, which contributes to its mobility in aquatic systems. It is used in various applications, including surfactants, coatings, and as a processing aid in the manufacture of fluoropolymers. Due to its structure, PFBS exhibits unique properties such as low surface tension and high surface activity. However, concerns have been raised regarding its environmental impact and potential health effects, as it can bioaccumulate and has been detected in water sources and living organisms. Regulatory agencies are increasingly scrutinizing PFBS and similar compounds due to their persistence and potential toxicity, leading to ongoing research into their effects on human health and ecosystems.

Formula: C₄HF₉O₃S

InChI: InChI=1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)

InChI key: InChIKey=JGTNAGYHADQMCM-UHFFFAOYSA-N

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

Synonyms:

• 1,1,2,2,3,3,4,4,4-Nonafluoro-1-butanesulfonic acid
• 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-Sulfonic Acid
• 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-Sulfonic Acid Hydrate
• 1-Butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluoro-
• 1-Butanesulfonic acid, nonafluoro-
• 1-Perfluorobutanesulfonic acid
• Eftop FBSA
• Nonafluoro-1-butanesulfonic acid
• Nonafluorobutan-1-sulfonic acid
• Nonafluorobutane-1-sulfonic acid
• Nonafluorobutanesulfonic acid
• Perfluoro n-butylsulfonic acid
• Perfluorobutanesulfonic acid
• n-Nonafluorobutanesulfonic acid

Nonafluoro-1-butanesulfonic Acid

CAS: 375-73-5

• Formula: C₄HF₉O₃S
• Purity: >98.0%(T)
• Color and Shape: Colorless to Light yellow to Light orange clear liquid
• Molecular weight: 300.09

Nonafluorobutane-1-sulfonic acid

CAS: 375-73-5

• Formula: C₄HF₉O₃S
• Purity: 98%
• Color and Shape: Liquid
• Molecular weight: 300.0995687999999

Perfluorobutane-1-sulphonic acid

CAS: 375-73-5

• Formula: C₄HF₉O₃S
• Purity: 97%
• Color and Shape: clear. faint yellow liquid
• Molecular weight: 300.10g/mol

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

CAS: 13252-13-6 1763-23-1 2058-94-8 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 377-73-1 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 1763-23-1 2058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 647-42-7 678-39-7 67905-19-5 72629-94-8 919005-14-4

• Color and Shape: Mixture

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

CAS: 16517-11-6 1763-23-1 2058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 356-02-5 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 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

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

CAS: 120226-60-0 13252-13-6 1763-23-1 2058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 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

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 1763-23-1 2058-94-8 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 34455-29-3 355-46-4 356-02-5 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 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

PFAS Superfund Mixture 2 µg/mL in Methanol:Water

CAS: 120226-60-0 13252-13-6 16517-11-6 1763-23-1 2058-94-8 2355-31-9 2706-90-3 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5375-85-9 375-95-1 376-06-7 39108-34-4 67905-19-5 754-91-6 757124-72-4

• Color and Shape: Mixture

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

CAS: 120226-60-0 16517-11-6 1763-23-1 2058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 678-41-1 67905-19-5 72629-94-8 754-91-6 757124-72-4

• Color and Shape: Mixture

Perfluorobutanesulfonic acid

CAS: 375-73-5

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

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

CAS: 1763-23-1 2058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 68259-12-1 72629-94-8 749786-16-1 791563-89-8 79780-39-5

• Color and Shape: Mixture

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

CAS: 113507-82-7 13252-13-6 151772-58-6 1763-23-1 2058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-93-8 27619-94-9 27619-96-1 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 72629-94-8 863090-89-5 919005-14-4

• Color and Shape: Mixture

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

CAS: 113507-82-7 13252-13-6 151772-58-6 1763-23-1 2058-94-8 2706-90-3 2706-91-4 27619-97-2 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 377-73-1 39108-34-4 73606-19-6 757124-72-4 83329-89-9 863090-89-5 919005-14-4

• Color and Shape: Mixture

UCMR5 PFAS Mixture 10 µg/mL in Methanol:Water

CAS: 113507-82-7 13252-13-6 151772-58-6 1763-23-1 2058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 39108-34-4 72629-94-8 756426-58-1 757124-72-4 763051-92-9 863090-89-5 919005-14-4

• Color and Shape: Mixture

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

CAS: 1763-23-1 2058-94-8 2355-31-9 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 39108-34-4 68259-12-1 72629-94-8 754-91-6 757124-72-4

• Color and Shape: Mixture

EPA Method 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 1763-23-1 2058-94-8 2355-31-9 24448-09-7 2706-90-3 2706-91-4 27619-97-2 2991-50-6 307-24-4 307-55-1 31506-32-8 335-67-1 335-76-2 335-77-3 355-46-4 356-02-5 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 377-73-1 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

Ultrashort-chain-PFAS (C1-C4) Mixture 50 µg/mL in Methanol:Water

CAS: 1493-13-6 354-88-1 375-22-4 375-73-5422-64-0 423-41-6 76-05-1

• Color and Shape: Mixture

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

CAS: 13252-13-6 1763-23-1 2058-94-8 2706-90-3 2706-91-4 307-24-4 307-55-1 335-67-1 335-76-2 335-77-3 34455-29-3 355-46-4 375-22-4 375-73-5375-85-9 375-92-8 375-95-1 376-06-7 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

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

CAS: 13252-13-6 1763-23-1 2058-94-8 2355-31-9 2991-50-6 307-24-4 307-55-1 335-67-1 335-76-2 355-46-4 375-73-5375-85-9 375-95-1 376-06-7 72629-94-8 73606-19-6 83329-89-9 919005-14-4

• Color and Shape: Mixture