Fmoc-L-Cysteine
- CAS NO.：135248-89-4
- Empirical Formula: C18H17NO4S
- Molecular Weight: 343.4
- MDL number: MFCD03788178
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:25
What is Fmoc-L-Cysteine?
Chemical properties
White crystalline powder
The Uses of Fmoc-L-Cysteine
N-Fmoc-L-cysteine is the N-Fmoc-protected form of L-Cysteine (C995000), a non-essential α-amino acid that is biosynthesized in humans. L-Cysteine is also a bicarbonate-sensitive endogenous excitotoxin in rats and possibly humans.
Properties of Fmoc-L-Cysteine
| Melting point: | 98-102oC |
| Boiling point: | 574.4±50.0 °C(Predicted) |
| Density | 1.337±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C(protect from light) |
| solubility | Acetone (Slightly), DMF (Slightly), DMSO (Slightly), Methanol (Slightly, Heated) |
| form | Solid |
| pka | 3.45±0.10(Predicted) |
| color | White to Off-White |
Safety information for Fmoc-L-Cysteine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral 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. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Fmoc-L-Cysteine
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