CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Hygroscopic solid; [Merck Index] White powder with an irritating odor; Hygroscopic; [Alfa Aesar MSDS] |
|---|---|
| Collision Cross Section | 123.3 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards] |
| Chemical Classes | Biological Agents -> Amino Acids and Derivatives |
SAFETY INFORMATION
| 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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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
| Molecular Weight | 157.62 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 2 |
| Exact Mass | 156.9964274 g/mol |
| Monoisotopic Mass | 156.9964274 g/mol |
| Topological Polar Surface Area | 64.3 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 75.3 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 1 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.