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Epigenetics |
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| Epigenetics>【GeneMarkBio】 |
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HEPES, free acid (BBI)（HB0264） |
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HEPES, free acid (BBI)
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Description
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| HEPES, free acid; (N-(2-hydroxyethyl)-piperazine-N'-2-ethanesulfonic acid) |
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| C8H18N2O4S |
MW 238.30 |
| Purity |
>99.0% |
| mp |
210°C |
| Heavy metals |
<0.001% |
| Lose on drying |
<1% |
| pH (1M) |
5.0-6.5 |
| Useful pH |
6.8-8.2 |
| DNase, RNase, Protease |
None detected |
| Storage (CAS# 7365-45-9) |
18-25°C |
| Grade |
High Purity |
| White crystal. Soluble in water. |
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| Code |
Size |
| HB0264 |
50 g |
| HB0264 |
250 g |
| HB0264 |
1 kg |
HEPES, free acid (GM)
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Description
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High Purity Grade |
| HEPES, free acid; (N-(2-hydroxyethyl)-piperazine-N'-2-ethanesulfonic acid) |
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| C8H18N2O4S |
MW 238.31 |
| CAS# 7365-45-9 |
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| Assay |
99.8% |
| pKa at 20°C |
7.5 |
| Heavy metals |
4 ppm |
| Lose on drying (105°C, 3 hours) |
0.1% |
| Sulfate |
0.008% |
| UV absorbance (260 nm) |
0.302 |
| Color (1 M solution) |
Passes test |
| Free flowing white powder. |
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| Code |
Size |
| GMSH0011-0500 |
500 g |
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