|
You need to upgrade your flash player |
|
|||||||||
MES is a pH buffering compound selected as one of the Good's buffers. It is not absorbed through cell membranes and is virtually transparent in UV light. Because of this, MES is used as a buffering agent in many biological and biochemical applications.
|
|
|
|||||
|
|
|
|
|
|
|
|
|
|
(4-Morpholineethanesulfonic acid) |
|||||
|
|
|
|
|
|
|
|
|
|
C6H13NO4S · H20 ^ F.W. 213.25 g/mol ^ CAS# 4432-31-9 |
|||||
|
|
|
|
|
|
|
|
|
|
Test |
Specifications |
|
|||
|
|
|
|
|
|
|
|
|
|
|
Bio Ultra |
Bio Synthesized |
Bio Industrial |
|
|
|
|
|
MES-13 |
MES-12 |
MES-11 |
|
|
|
|
|
|
|
|
|
|
|
|
Manufactured in the |
Pass |
|
|
|
|
|
|
Appearance and Color |
White/Crystals |
White/Crystals |
White/Crystals |
|
|
|
|
pH (0.5M) |
2.5-4.5 |
2.5-4.5 |
|
|
|
|
|
Assay |
99.5% min. |
99.0% min. |
98.0% min. |
|
|
|
|
Identification (IR) |
Match Reference |
Match Reference |
Match Reference |
|
|
|
|
Color (1M, Alkaline) |
Clear/Colorless |
Clear/Colorless |
Clear/Colorless |
|
|
|
|
Solubility (5%) |
Clear |
Clear |
|
|
|
|
|
Chloride |
0.005% max. |
|
|
|
|
|
|
Sulfate |
0.005% max. |
|
|
|
|
|
|
Absorbance |
0.02 max. @ 280 |
0.02 max. @ 280 |
|
|
|
|
|
|
0.02 max. @ 260 |
0.02 max. @ 260 |
|
|
|
|
|
Loss on Drying |
7-10% |
7-10% |
7-10% |
|
|
|
|
Sodium (Na) |
0.005% max. |
|
|
|
|
|
|
Potassium (K) |
0.005% max. |
|
|
|
|
|
|
Arsenic (As) |
0.0001% max. |
|
|
|
|
|
|
Copper (Cu) |
0.0001% max. |
0.0005% max. |
|
|
|
|
|
Iron (Fe) |
0.0001% max. |
|
|
|
|
|
|
Magnesium (Mg) |
0.0001% max. |
|
|
|
|
|
|
Lead (Pb) |
0.0001% max. |
0.0002% max. |
|
|
|
|
|
Heavy Metals |
0.0001% max. |
|
|
|
|
|
|
Residue on Ignition |
0.05% max. |
|
|
|
|
|
|
pH (5%) |
3.1-3.3 |
|
|
|
|
|
|
pKa |
5.9-6.3 |
5.9-6.3 |
|
|
|
|
|
RNase |
None Detected |
None Detected |
|
|
|
|
|
DNase |
None Detected |
None Detected |
|
|
|
|
|
Protease |
None Detected |
None Detected |
|
|
|
|
| Bio Industrial (Good) Quality tested from approved suppliers of BBS for Industry-Standard use. |
| Bio Synthesized (Better) Manufactured in a quality system based facility offering traceability and consistent supply. |
| Bio Ultra (Best) Manufactured at BBS to meet the highest quality and regulatory standards. |
