CAPSO sodium salt
Synonym(s):3-(Cyclohexylamino)-2-hydroxy-1-propanesulfonic acid sodium salt
- CAS NO.：102601-34-3
- Empirical Formula: C9H20NNaO4S
- Molecular Weight: 261.31
- MDL number: MFCD00070063
- EINECS: 700-631-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-09-09 10:27:52
What is CAPSO sodium salt?
Chemical properties
White powder
The Uses of CAPSO sodium salt
CAPSO (N-cyclohexyl-2-hydroxyl-3-aminopropanesulfonic acid) sodium salt is used to formulate CAPSO buffer, a zwitterionic buffer that is useful in the range of pH 8.9 - 10.3. CAPSO buffer is used in western and immunoblotting experiments as well as protein sequencing and identification. Used in the electrotransfer of proteins to PVDF (sc-3723) or nitrocellulose membranes (sc-3718, sc-3724). CAPSO is not one of the original " Good " buffers, although it has a similar structure to the other propanesulfonic acids and was selected as a highly water soluble buffering reagent with an optimum buffering pH of 10.4 and minimal reactivity with enzymes or proteins, minimal salt effects.
What are the applications of Application
CAPSO sodium salt is used in immunoblotting experiments, protein sequencing and identification
Properties of CAPSO sodium salt
| Boiling point: | 601.2℃ at 101.325kPa |
| Density | 1.369 at 20℃ |
| vapor pressure | 0-0Pa at 25℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| form | Crystalline Powder |
| color | White |
| pka | 9.6(at 25℃) |
| PH Range | 8.9 - 10.3 |
| InChI | InChI=1S/C9H19NO4S.Na.H/c11-9(7-15(12,13)14)6-10-8-4-2-1-3-5-8;;/h8-11H,1-7H2,(H,12,13,14);; |
| CAS DataBase Reference | 102601-34-3(CAS DataBase Reference) |
Safety information for CAPSO sodium salt
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for CAPSO sodium salt
| InChIKey | IPCNCWRWFMMZJH-UHFFFAOYSA-N |
| SMILES | N(C1CCCCC1)CC(O)CS(O)(=O)=O.[NaH] |
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