HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid free acid, anhydrous ≥99.5%, Bioreagent
Fournisseur: VWR
Certificats
A propos de cet article
Synonymes: HEPES free acid,4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid
Formule:C₈H₁₈N₂O₄S
MW:238.31 g/mol
Point de Fusion:210 - 215 °C
Densité:1.448 g/cm³ (20 °C)
Numéro MDL:MFCD00006158
Numéro CAS:7365-45-9
Index Merck:13,04672
:Length:
:Width:
:Height:
:Ø
:Thickness:
:99,5
:Boiling Pt:
:Boiling Pt:
:Melting Pt:
:Melting Pt: 210 to 215 °C
:Flash Pt:
:Flash Pt:
:M.W. 238.31 g/mol
:HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid)
EINECS:230-907-9
:210…215 °C
Température d'entreposage:Ambient
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Résultats des tests de spécification
- Appearance:white crystalline powder
- Assay (By titration):NLT 99.5%
- Absorbance (1M solution in H2O) 260nm:NMT 0.10
- Absorbance (1M solution in H2O) 280nm:NMT 0.10
- Identification (by IR):conforms to structure
- pKa (@ 20ºC):7.45 to 7.65
- Residue On Ignition:NMT 0.3%
- Solubility (1M solution in H2O):clear, colorless, complete
- Water (KFT):NMT 0.5%
- Heavy Metals (as Pb):NMT 5 ppm
- Calcium (Ca):NMT 5 ppm
- Copper (Cu):NMT 5 ppm
- Iron (Fe):NMT 5 ppm
- Magnesium (Mg):NMT 5 ppm
- Manganese (Mn):NMT 5 ppm
- Bioburden:NMT 100 CFU/g
- Cell Culture Toxicity (at 12g/L):Passes test
- Endotoxin (0.2% solution in H2O):NMT 0.1 EU/mg
- DNase:none detected
- RNase:none detected
- Protease:none detected
- Additional Information:Retest Date (4 Yrs form Manufacture)
- HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid free acid, anhydrous ≥99.5%, Bioreagent:
Résultats des tests de spécification
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