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Hepps

HCID 85255
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
16052-06-5
Standard SMILES
O=S(=O)(O)CCCN1CCN(CCO)CC1
InChIKey
OWXMKDGYPWMGEB-UHFFFAOYSA-N
Molecular formula
C9H20N2O4S
Average molar mass
252.33 g/mol
Monoisotopic mass
252.11437812

Overview

HEPPS is a N-(2-hydroxyethyl)piperazine and a N-(sulfoalkyl)piperazine.

Names & identifiers

Preferred name
Hepps
IUPAC
3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid
English name
HEPPS
Molecular formula
C9H20N2O4S
Molecular weight
252.33

Names & synonyms

Hepps16052-06-53-(4-(2-Hydroxyethyl)piperazin-1-yl)propane-1-sulfonic acid1-Piperazinepropanesulfonic acid, 4-(2-hydroxyethyl)-3-[4-(2-HYDROXYETHYL)PIPERAZIN-1-YL]PROPANE-1-SULFONIC ACID3-[4-(2-Hydroxyethyl)-1-piperazinyl]propanesulfonic AcidN-(2-Hydroxyethyl)piperazine-N'-(3-propanesulfonic acid)4-(2-Hydroxyethyl)piperazine-1-propanesulfonic acidEINECS 240-198-88JN5PQW99CBRN 3957385N-2-Hydroxyethylpiperazine-N'-3-propanesulfonic acid
Show more names
EPPS4-(2-HYDROXYETHYL)-1-PIPERAZINEPROPANESULFONIC ACIDHEPEaEPPSEPPS,99%HEPPS(EPPS)HEPPS BufferEPPS USP/EP/BPEPPS SIGMAULTRA
DTXSID3066003CHEBI:42298N-(2-Hydroxyethyl)-1-piperazinepropanesulfonic acidN-2-Hydroxyethylpiperazine-N-3-propanesulfonic acid4-(2-Hydroxyethyl)piperazine-1-propane-3-sulfonic acid3-(4-(2-Hydroxyethyl)-1-piperazinyl)propanesulfonic acidRefChem:145584DTXCID5035169

Database identifiers

CAS
16052-06-5
PubChem CID
85255
DTXSID
DTXSID3066003
ChEBI
CHEBI:42298
UNII
8JN5PQW99C
EC Number
240-198-8
Nikkaji
J219.951C

Properties

Computed structural propertiesFilling in

XLogP
-3.6
Topological polar surface area
89.5 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
6
Rotatable bonds
6
Heavy atoms
16
Formal charge
0
Complexity
280

Experimental & physicochemical properties

Chemical ClassesNitrogen Compounds -> Piperazines
Physical DescriptionBeige powder; [Sigma-Aldrich MSDS]

Physicochemical properties

Melting point
237 · 237-239 °C(lit.)
Density
1.2684 · 1.2684 (rough estimate)
refractive index
1.68 · 1.6800 (estimate)
storage temp.
Sealed in dry,Room Temperature
solubility
2 O: · H2O: 1 M at 20 °C, clear, colorless
form
Powder/Solid
color
White
PH
5 · 5.0-6.5 (25℃, 0.1M in H2O)
pka
8 · 8.0(at 25℃)
PH Range
7.3 · 7.3 - 8.7
Water Solubility
25.2 g/L · Soluble in water. 25.2 g/L (20°C)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 3 items

This chemical does not meet GHS hazard criteria for 94.2% (65 of 69) of all reports.

Not Classified

Aggregated GHS information provided per 69 reports by companies from 6 notifications to the ECHA C&L Inventory.

Hazard information

Regulatory Information · 3 items

Chemical: 1-Piperazinepropanesulfonic acid, 4-(2-hydroxyethyl)-

Status: Active Update: 09-09-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/32799

1-Piperazinepropanesulphonic acid, 4-(2-hydroxyethyl)-: Does not have an individual approval but may be used under an appropriate group standard

Hazards SummaryOral LD50 (quail) > 316 mg/kg; [RTECS] An eye irritant; [Sigma-Aldrich MSDS] See Piperazine and salts. See HEPES.
Hazard Classes and CategoriesNot Classified

Safety data

PPE
Eyeshields, Gloves, type N95 (US)
wgk
3
tsca
TSCA listed
rtecs
TM2649130
hs_code
29335995
Toxicity
quail,LD50,oral,> 316mg/kg (316mg/kg),Ecotoxicology and Environmental Safety. Vol. 6, Pg. 149, 1982.
risk_code
36/37/38-22
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi

Chemistry & industry

Uses & manufacturing

General Manufacturing Information1-Piperazinepropanesulfonic acid, 4-(2-hydroxyethyl)-: ACTIVE
Applications · 2 items

UsesHEPPS (EPPS) is a commonly used Good's buffer. It is often used as separator in ultrathin isoelectric focusing gels and enhances the resolution of phosphoglucomutase. It is used as a buffering agent in biology and biochemistry. HEPPS is a biological buffer with a useful pH range of 7.3-8.7 and a pKa=8.0 at 25°C. Research on mice with Alzheimer's disease-like amyloid beta plaques has shown that HEPPS can cause the plaques to break up, reversing some of the symptoms in the mice. HEPPS was reported to dissociate amyloid beta oligomers in patients' plasma samples enabling blood diagnosis of Alzheimer's disease.

General DescriptionHEPPS, or N-(2-Hydroxyethyl)piperazine-N′-(3-propanesulfonic acid), is a zwitterionic buffering agent commonly used in biochemical and molecular biology research. Its mechanism of action is rooted in its ability to maintain a stable pH environment, which is crucial for various enzymatic reactions and protein studies. HEPPS is especially favoured for its buffering capacity in the physiological pH range, typically between pH 6.8 and 8.2, making it ideal for biological assays and cell culture experiments. This compound is extensively utilized in preparing cell culture media, where maintaining a consistent pH is essential for cell viability and growth. Additionally, HEPPS is employed in biochemical assays, such as enzyme kinetics studies, where precise pH control is necessary to accurately measure enzymatic activity. Furthermore, HEPPS has found applications in molecular biology techniques, including nucleic acid purification, PCR (polymerase chain reaction), and protein analysis by SDS-PAGE (sodium dodecyl sulfate polyacrylamide gel electrophoresis). Its compatibility with various biological systems and stability under physiological conditions make HEPPS a valuable tool in research laboratories for maintaining optimal pH conditions and ensuring reliable experimental outcomes in various biochemical and molecular biology studies.

Additional notes

Related reactions

4 records
New reaction record
HRID 332914 reaction equation
HRID 332914As reactantuspto-grants-2014_11
HRID 1268668 reaction equation
HRID 1268668As reactantuspto-grants-2007_04
HRID 1268670 reaction equation
HRID 1268670As reactantuspto-grants-2007_04
HRID 1482731 reaction equation
HRID 1482731As solventuspto-grants-2016_08

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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λmax
260 nm · λ: 260 nm Amax: 0.055λ: 280 nm Amax: 0.045
BRN
3957385 · 3957385
Major Application
diagnostic assay manufacturing
InChI
1S/C9H20N2O4S/c12-8-7-11-5-3-10(4-6-11)2-1-9-16(13,14)15/h12H,1-9H2,(H,13,14,15)
InChIKey
OWXMKDGYPWMGEB-UHFFFAOYSA-N
SMILES
OCCN1CCN(CCCS(O)(=O)=O)CC1
CAS DataBase Reference
16052 · 16052-06-5(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
8 JN5PQW99C · 8JN5PQW99C
EPA Substance Registry System
1 · 1-Piperazinepropanesulfonic acid, 4-(2-hydroxyethyl)- (16052-06-5)
Absorption
0.1 at · ≤0.1 at 260 in H2O at 1M≤0.1 at 280 in H2O at 1M
UNSPSC Code
12161700 · 12161700
NACRES
25 · NA.25
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
302 · H302-H315-H319-H332-H335
Precautionary statements
280 · P280-P305+P351+P338-P310
PPE
95 · Eyeshields, Gloves, type N95 (US)
Hazard Codes
Xi
Risk Statements
36 · 36/37/38-22
Safety Statements
24 · 24/25-36-26
WGK Germany
3 · 3
RTECS
2649130 · TM2649130
TSCA
TSCA listed
HazardClass
IRRITANT
HS Code
29335995 · 29335995
Storage Class
11 · 11 - Combustible Solids
Toxicity
50 · quail,LD50,oral,> 316mg/kg (316mg/kg),Ecotoxicology and Environmental Safety. Vol. 6, Pg. 149, 1982.
REACH Registrations
Active
safety_code
24/25-36-26
hazard_class
IRRITANT
Storage Class
11 - Combustible Solids
Hazard statements
H302-H315-H319-H332-H335
REACH Registrations
Active
Precautionary statements
P280-P305+P351+P338-P310

DefinitionChEBI: HEPPS is a N-(sulfoalkyl)piperazine and a N-(2-hydroxyethyl)piperazine.