HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid ≥99.5% (by titrimetric analysis), cGMP-manufactured
Supplier: SPECTRUM CHEMICAL MFG CORP
Synonyms:
4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid
, 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulfonic acid
, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid)
, 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulphonic acid
, N-2-Hydroxyethylpiperazine-N′-2-ethanesulfonic acid
, 4-(2-Hydroxyethyl)piperazin-1-ylethanesulfonic acid
, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulphonic acid)
, N-2-Hydroxyethylpiperazine-N′-2-ethanesulphonic acid
, HEPES free acid
HEPES, cGMP Manufactured is a zwitterionic biological buffer and is one of Good's buffers widely used in cell culture. Non-graded HEPES, cGMP Manufactured supplied by Spectrum is indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.
Formula:
C₈H₁₈N₂O₄S MW: 238.31 g/mol Storage Temperature: Ambient |
MDL Number:
MFCD00006158 CAS Number: 7365-45-9 EINECS: 230-907-9 |
Specification Test Results
Assay (titration) | min. 99.5 % |
pH OF A 5% AQUEOUS SOLUTION | 4,5-6,5 |
pKa @ 25 C | 7,35-7,75 |
Absorbance @ 260 nm (0.05 M in water) | 0,05 AU |
Absorbance @ 280 nm (0.05 M in water) | 0,03 AU |
WATER (KF) | max. 0,5% |
HEAVY METALS (as Pb) | max. 5ppm |
INSOLUBLE MATTER | max. 0,1 % |
TOTAL AEROBIC MICROBIAL COUNT | max. 100cfu/g |
TOTAL YEAST AND MOLD COUNT | max. 100cfu/g |
BACTERIAL ENDOTOXIN | as reported |
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