HEPES (Acide 4-(2-hydroxyéthyl)pipérazine-1-yléthanesulfonique) ≥99.5% (par titration sur base substance sèche) non cGMP-manufactured, bioCERTIFIED™, qualité Bioprocess testé contre les micro- et les endotoxines
Supplier: Spectrum Chemical
Certificates
About this item
Synonyms: HEPES free acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulphonic acid), 4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid, N-2-Hydroxyethylpiperazine-N′-2-ethanesulphonic acid, 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulphonic acid
CAS Number:7365-45-9
:
Formula:C₈H₁₈N₂O₄S
MDL Number:MFCD00006158
:238.31 g/mol
Storage Temperature:Température ambiante
EINECS:230-907-9
Specifications
- Environmentally Preferable:
Specifications
Specification Test Results
- ASSAY (TITRATION; DRIED BASIS):min.99.5 %
- APPEARANCE:White Powder
- SOLUBILITY (1M in H2O):Clear and complete
- pKa @ 25°C:7.45-7.65
- pH (5% in water):5.0-6.5
- LOSS ON DRYING, 140°C, 30 MINUTES:max. 0.5%
- RESIDUE ON IGNITION/SULFATED ASH:max. 0.1%
- UV ABSORBANCE @ 260 nm (1M in water):max 0,05
- UV ABSORBANCE @ 280 nm (1M in water):max 0,04
- UV Absorbance @ 290 nm (33% in water):max 0,05
- UV ABSORANCE @ 405 nm (1M in water):max 0,01
- HEAVY METALS:max 5 ppm
- ENDOTOXINS:max.0.002 EU/mg
- BIOBURDEN:max.1000 CFU/g
- BIOBURDEN YEAST AND MOLD COUNT:max.100 CFU/g
- DNase:Not detected
- PROTEASE:Not detected
- RNase:Not detected
Specification Test Results
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