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N-(2-Hydroxyethyl)piperazine-N'-2-ethanesulfonic acid,sodium salt HEPES sodium salt CAS:75277-39-3
Name | N-(2-Hydroxyethyl)piperazine-N'-2-ethanesulfonic acid,sodium salt |
Synonyms | HEPES sodium salt HEPES-Na,[4-(2-Hydroxyethyl)-1-piperazinyl]ethanesulfonic Na N-(2-Hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid) Sodium salt HEPES,Sodium salt HEPES-Na |
CAS | 75277-39-3 |
EINECS | 278-169-7 |
InChI | InChI=1/C8H18N2O4S.Na/c1-8(15(12,13)14)10-4-2-9(3-5-10)6-7-11;/h8,11H,2-7H2,1H3,(H,12,13,14);/q;+1/p-1 |
Item |
Standard |
Test Results |
|
Identification |
A.H-NMR:Comply with the structure |
Complies |
|
B.LC-MS:Comply with the structure |
Complies |
||
C.The IR spectrum of sample should be identical with that of reference standard; |
Complies |
||
D.HPLC-ESI-MS |
Complies |
||
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
|||
Heavy metals |
≤10 ppm |
<10ppm |
|
Water |
≤1.0% |
0.10% |
|
Sulphated ash |
≤0.5%, determined on 1.0 g. |
0.01% |
|
Related substances |
Unspecified impurities: for each impurity |
≤0.10% |
<0.10% |
Total Impurity |
≤0.5% |
0.18% |
|
Purity |
≥99.0% |
99.70% |
|
Assay |
99.0%~101.0% (anhydrous substance). |
99.80% |
|
Storage |
Preserve in well-closed, light-resistant and airtight containers. |
Complies |
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