4-(2-Hydroxyethyl)piperazin-1-ylethansulfonsure
4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid
Grundinformationen
- CAS
7365-45-9- Standard-SMILES
O=S(=O)(O)CCN1CCN(CCO)CC1- InChIKey
JKMHFZQWWAIEOD-UHFFFAOYSA-N- Summenformel
- C8H18N2O4S
- Durchschnittliche Molmasse
- 238,31 g/mol
- Monoisotopische Masse
- 238,09872806
Überblick
2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid is a HEPES that is ethanesulfonic acid in which one of the methyl hydrogens is replaced by a 4-(2-hydroxyethyl)piperazin-1-yl group. A Good's buffer substance, pKa = 7.55 at 20 C. It is an organosulfonic acid and a HEPES. It is a conjugate acid of a 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonate. It is a tautomer of a 2-[4-(2-hydroxyethyl)piperazin-4-ium-1-yl]ethanesulfonate.
Namen und Bezeichner
- Bevorzugter Name
- 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid
- IUPAC
- 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid
- Lokaler Name
- 4-(2-Hydroxyethyl)piperazin-1-ylethansulfonsure
- Englischer Name
- HEPES
- Summenformel
- C8H18N2O4S
- Molmasse
- 238.3
Namen und Synonyme
HEPES7365-45-94-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)-HEPES solution4-(2-Hydroxyethyl)-1-piperazineethane sulfonic acidRWW266YE9ICHEBI:42334hydroxyethylpiperazine ethane sulfonic acidNSC-166663NSC166663Monosodium Salt, HEPES
Weitere Namen anzeigen
HEPES BUFFER4-(2-HYDROXYETHYL)PIPERAZINE-1-ETHANESULFONIC ACIDBiological BufferHEPES buffer SolutionEPES4-(2-hydroxyethyl)piperazin-1-ylethanesulphonic acid2-[4-(2-HYDROXYETHYL)-1-PIPERAZINYL]ETHANESULFONIC ACID
Salt, HEPES MonosodiumN 2 Hydroxyethylpiperazine N' 2' ethanesulfonic AcidN-2-Hydroxyethylpiperazine-N'-2'-ethanesulfonic AcidRefChem:783545CHEBI:46756Hydroxyethyl Piperazine Ethanesulfonic Acid Solution230-907-92-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulfonic acid
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- -4
- Polarare Oberfläche (TPSA)
- 89,5 Ų
- H-Brücken-Donoren
- 2
- H-Brücken-Akzeptoren
- 6
- Frei drehbare Bindungen
- 5
- Schwere Atome
- 15
- Formalladung
- 0
- Komplexität
- 267
Experimentelle und physikochemische Eigenschaften
Chemical ClassesOther Uses -> Biological Buffers
Physical Description
Dry Powder; Liquid
Solid; [Merck Index] White powder; [Alfa Aesar MSDS]
Collision Cross Section151.1 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID4044458]
Physikochemische Eigenschaften
- Schmelzpunkt
- 234 · 234-238 °C
- Siedepunkt
- 408 ℃[at · 408℃[at 101 325 Pa]
- Dichte
- 1.07 g/mL · 1.07 g/mL at 20 °C
- Dampfdruck
- 0 Pa · 0Pa at 25℃
- Brechungsindex
- 20 · n20/D 1.339
- storage temp.
- 2 · 2-8°C
- Löslichkeit
- 2 O: · H2O: 1 M at 20 °C, clear, colorless
- Aggregatzustand
- powder
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 95.6% (194 of 203) of all reports.
Not Classified
Aggregated GHS information provided per 203 reports by companies from 9 notifications to the ECHA C&L Inventory.
Gefahrenhinweise
Regulatory Information
Chemical: 1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)-
1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 09-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/13322
Hydroxyethyl piperazineethanesulfonic acid: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryMay cause irritation; [Alfa Aesar MSDS] See Piperazine and salts.
Hazard Classes and CategoriesNot Classified
Sicherheit und Schutzausrüstung
Protective Action Criteria (PAC)
30 [mg/m3]
330 [mg/m3]
2000 [mg/m3]
Sicherheitsdaten
- wgk
- 1
Chemie und Industrie
Pharmakologische Informationen
MeSH Pharmacological ClassificationA chemical system that functions to control the levels of specific ions in solution. When the level of hydrogen ion in solution is controlled the system is called a pH buffer.
Verwendung und Herstellung
UsesUsed as a biological buffer; [Merck Index] A dipolar ionic buffer often used to culture embryos and other reproductive tissues; [REPROTOX]
U.S. Production2023: 1,000,000 - <2,500,000 lb
Consumer UsesCatalyst
Industry UsesCatalyst
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
1-Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)-: ACTIVE
Anwendungen
BeschreibungHEPES has been described as one of the best all-purpose buffers available for biological research. At biological pH, the molecule is zwitterionic, and is effective as a buffer at pH 6.8 to 8.2 (pKa 7.55). It is typically used in cell culture at concentration between 5mM to 30 mM. HEPES has been used in a wide variety of applications, including tissue culture. It is commonly used to buffer cell culture media in air. HEPES finds its usage in in vitro experiments on Mg.
VerwendenNon-toxic to cell. It is used as a hydrogen ion buffer, which can control the constant pH range for long term. The concentration is 10-50mmol/L. Generally, 20mmol/LHEPES in nutrient solution can get buffer ability.
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