BES 生物緩衝劑
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Catalog No.Bio-ES002
| |
CAS No. | 10191-18-1 ( CAS No. is listed on the TSCA inventory ) |
EC No. | 233-465-5 |
Synonyms | N, N-Bis [ 2-Hydroxyethyl ]-2-aminoethanesulfonic acid； 2-[ Bis ( 2-hydroxyethyl ) amino ] ethanesulfonic acid |
Chinese Name | N, N-二 ( 2-羥乙基 )-2氨基乙烷磺酸 N, N-雙 ( 2-羥乙基 )-2氨基乙磺酸 |
Molecular Structure | |
Molecular Formula | C6H15NO5S |
Molecular Weight | 213.25 |
Meleing point | 152~154℃ |
Water solubility | 10% aq. in hot water clear and colorless Solubility ( 0.1M in H2O ) clear and complete |
pKa ( 25℃ ) | 7.1 ± 0.2 |
Appearance | White crystalline powder，odorless |
Purity Assay | ≥ 99.0% ( Titration ) |
Moisture | ≤ 1.0% |
UV A260 / A280nm | UV ( 0.1 M in H2O ) A260nm ≤ 0.010 A280 ≤ 0.08 |
Storages | Room Temperature |
Description | 1. BES is a zwitterionic buffer used in biochemistry and molecular biology research. The useful range of BES buffer in aqueous solution working concentration is：3-100mM. 2. Highly efficient transformation of mammalian cells with a BES-buffered salt solution ( 50mM BES，pH 6.95 ( transformation crucial factor )；280mM NaCl；1.5mM Na2HPO4 ). 3. It is a Good’s buffer. |
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Good's Buffer
Useful pH Ranges of Selected Biological Buffers (25℃, 0.1M)
Sodium and Potassium salt buffers are also available
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Our biological buffers are used widely in life science and pharmaceuticals including cell biology, molecular biology and industrial biopharmaceutical applications. The products are non toxic to cell cultures, and have pKa values at or near physiological pH. All of our buffer are at least the ultra pure grade, which have high assay, solubility and low heavy metals, and free of DNase, RNase, and Protease.
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