Home | Products | Quick Order | Support | Contact Us
Home  |   Products | Optimize Reagents | Optimize - Buffers | HEPES sodium Buffer
HEPES sodium Buffer
Applications
Crystallization grade HEPES sodium buffer for formulating screens or for optimization
Features
Sterile filtered
Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)
Description
HEPES sodium
Synonyms: HEPES sodium salt, or 4-(2-hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt, or N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid) sodium salt
C8H17N2NaO4S
Mr 260.29
CAS [75277-39-3]
EC Number 278-169-7
MDL Number MFCD00036463
PubChem Substance ID 24895780
pKa 7.5 at 25°C
Useful pH Range of HEPES sodium: 6.6-8.2

HR2-733 is titrated to pH 7.5 using HCl
HR2-733 measured Conductivity range: 42.0 - 43.4 mS/cm at 25°C
HR2-733 measured Refractive Index range: 1.37648 - 1.37766 at 20°C

HR2-577 is the free base of HEPES sodium and is to be titrated to the desired pH using HCl
HR2-577 measured pH Range: 10.8 - 12.1 at 25°C
HR2-577 measured Conductivity range: 25.9 - 27.2 mS/cm at 25°C
HR2-577 measured Refractive Index range: 1.37097 - 1.37298 at 20°C

HR2-931-01 - 1.0 M HEPES sodium pH 6.8 is a Custom Shop reagent and is used to reproduce and optimize Crystallization Reagents for use with the Silver Bullets kit.
CAT NO NAME DESCRIPTION
HR2-577 1.0 M HEPES sodium 100 ml solution
Price Quantity
$120.00
CAT NO NAME DESCRIPTION
HR2-733 1.0 M HEPES sodium pH 7.5 100 ml solution
Price Quantity
$120.00
CAT NO NAME DESCRIPTION
HR2-931-01 1.0 M HEPES sodium pH 6.8 185ml
Price Quantity
$226.00
References
1.Crystallization and preliminary X-ray characterization of GM2-activator protein. C. S. Wright and S.-C. Li. Acta Cryst. (1997). D53, 211-212.
Certificates of Analysis
To add item to My Wish List,
please log in.
info@hrmail.com   |  800.452.3899   |  949.425.1321   |  Fax 949.425.1611   |   ©COPYRIGHT 2003 - 2017 HAMPTON RESEARCH CORP. ALL RIGHTS RESERVED.   |  PRIVACY POLICY