S-Phenyl-L-cysteine
Synonym(s):3-(Phenylthio)-L- Alanine;4-Thia-L -homophenylalanine
- CAS NO.：34317-61-8
- Empirical Formula: C9H11NO2S
- Molecular Weight: 197.25
- MDL number: MFCD01318758
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:22:04
What is S-Phenyl-L-cysteine?
Chemical properties
almost white to beige powder
The Uses of S-Phenyl-L-cysteine
Inhibitor of enzyme.
What are the applications of Application
S-Phenyl-L-cysteine is an enzyme inhibitor
Properties of S-Phenyl-L-cysteine
| Melting point: | 200 °C (dec.) (lit.) |
| alpha | 10 º (c=1, 0.1N NaOH) |
| Boiling point: | 361.5±37.0 °C(Predicted) |
| Density | 1.2342 (rough estimate) |
| refractive index | 1.5270 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Aqueous Acid (Slightly), Aqueous Base (Slightly) |
| form | Solid |
| pka | 2.04±0.10(Predicted) |
| color | White to Off-White |
| optical activity | [α]20/D +10°, c = 1.5 in 1 M NaOH |
| Water Solubility | Water: sparingly soluble |
| BRN | 2268203 |
| CAS DataBase Reference | 34317-61-8(CAS DataBase Reference) |
Safety information for S-Phenyl-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 S-Phenyl-L-cysteine
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