The Product Information sheet of product "P5318" suggests that this grade of Pepstatin A may not be soluble, even at low levels of alcohol or DMSO, unless 10% acetic acid is added. It seems that the purer the material, the less soluble it becomes in ethanol, methanol, or DMSO. In contrast, the less pure material P4265 is highly soluble in any of the solvents mentioned at 25mg/mL. Therefore, it is advisable to add some acetic acid, either by titrating it or adding it directly to 10% acetic acid/ethanol to dissolve this inhibitor.
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| A ustedes/SKU | Disponibilidad | Precio |
|---|---|---|
5 mg | Comprobar disponibilidad del carrito | $95.700 |
25 mg | Comprobar disponibilidad del carrito | $252.000 |
Acerca de este artículo
$95.700
Nombre del producto
Pepstatina A, microbial, Purity ≥98%
biological source
microbial
Quality Segment
form
powder
mp
233 °C (dec.) (lit.)
solubility
0.8-1.2 mg/mL (1% AcOH in Methanol (mix well))
storage temp.
2-8°C
SMILES string
CC(C)C[C@H](NC(=O)[C@H](C)NC(=O)C[C@H](O)[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CC(C)C)C(C)C)C(C)C)[C@@H](O)CC(O)=O
InChI
1S/C34H63N5O9/c1-17(2)12-23(37-33(47)31(21(9)10)39-34(48)30(20(7)8)38-27(42)14-19(5)6)25(40)15-28(43)35-22(11)32(46)36-24(13-18(3)4)26(41)16-29(44)45/h17-26,30-31,40-41H,12-16H2,1-11H3,(H,35,43)(H,36,46)(H,37,47)(H,38,42)(H,39,48)(H,44,45)/t22-,23-,24-,25-,26-,30-,31-/m0/s1
InChI key
FAXGPCHRFPCXOO-LXTPJMTPSA-N
General description
Application
Biochem/physiol Actions
Preparation Note
Las disoluciones de reserva a 1 mg/ml son estables por lo menos durante una semana a 4 °C. Una disolución 1 mM en metanol o DMSO es estable durante meses a -20 °C. Si las disoluciones se vuelven de color amarillo oscuros, el reactivo se está hidrolizando.
Una concentración de trabajo de 1 μM es estable durante como mínimo un día a temperatura ambiente.
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Este artículo | |||
|---|---|---|---|
| biological source microbial | biological source microbial | biological source Streptomyces sp. | biological source - |
| Quality Level 200 | Quality Level 300 | Quality Level 100 | Quality Level 100 |
| form powder | form powder | form powder | form - |
| solubility 0.8-1.2 mg/mL (1% AcOH in Methanol (mix well)) | solubility ethanol: acetic acid (9:1): 1 mg/mL, clear to hazy, colorless | solubility ethanol: soluble 1 mg/mL | solubility - |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. - |
| mp 233 °C (dec.) (lit.) | mp 233 °C (dec.) (lit.) | mp 233 °C (dec.) (lit.) | mp - |
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Clase de almacenamiento
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Is the recommended solution preparation for Pepstatin A product P5318 (CAS 26305-03-3) similar for DMSO solubility as it is for ethanol and methanol with 10% (v/v) acetic acid added?
1 answer-
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