FMOC-Ala-OH
Synonym(s):Fmoc-Ala-OH;FMOC-?-ALA-OH;Fmoc-L -alanine;N-α-Fmoc-L-alanine monohydrate;N-β-Fmoc-β-alanine
- CAS NO.:35661-39-3
- Empirical Formula: C18H17NO4
- Molecular Weight: 311.33
- MDL number: MFCD00037139
- EINECS: 252-660-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-05-31 17:33:32
What is FMOC-Ala-OH?
Chemical properties
white to light yellow crystal powde
The Uses of FMOC-Ala-OH
N-Fmoc-L-alanine is potentially useful for proteomics studies and solid phase peptide synthesis techniques. Alanine is one of the simplest amino acids - a methyl group as the side chain. This small side chain confers a high degree of flexibility when incorporated into a polypeptide chain. The Fmoc group is typically removed with a base such as pyridine - an orthogonal de-protection strategy to the acid labilie Boc group.
Preparation
A solution of the Fmoc-OX derivatives (20 mmol) in 100 mL acetone was added dropwise to a stirred solution of Alanine (20 mmol) and NaHCO3(50 mmol) in 100 mL water. After stirring overnight the reaction mixture was concentrated under reduced pressure and then extracted with CH2Cl2(50 mL) to remove the unreacted Fmoc-OX derivatives. The reaction mixture was cooled and acidified with 10% HCl to congo red litmus paper to give a white solid, which was filtered and washed with water several times, dried to give a white solid (FMOC-Ala-OH).Yield=89.5%.
Description
Fmoc-Ala-OH (U-13C3, U-15N) is an Fmoc protected alanine derivative labeled with C13 and N15.
Properties of FMOC-Ala-OH
Melting point: | 147-153 °C (lit.) |
Boiling point: | 451.38°C (rough estimate) |
alpha | -19 º (c=1,DMF) |
Density | 1.2626 (rough estimate) |
refractive index | -18.5 ° (C=1, DMF) |
storage temp. | Store below +30°C. |
solubility | DMSO (Slightly), DMF (Sparingly), Methanol (Slightly) |
form | Solid |
pka | 3.91±0.10(Predicted) |
color | White |
optical activity | [α]20/D 18°, c = 1 in DMF |
Water Solubility | Soluble in water. |
BRN | 2225975 |
CAS DataBase Reference | 35661-39-3(CAS DataBase Reference) |
Safety information for FMOC-Ala-OH
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for FMOC-Ala-OH
InChIKey | QWXZOFZKSQXPDC-NSHDSACASA-N |
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