L-Cysteine
ALDRICH/W326305 - ≥97%, FG
Synonym: (R)
CAS Number: 52-90-4
Empirical Formula (Hill Notation): C3H7NO2S
Molecular Weight: 121.16
EC Number: 200-158-2
MDL Number: MFCD00064306
Linear Formula: HSCH2CH(NH2)CO2H
Product Type: Chemical
| application(s) | flavors and fragrances |
| assay | ≥97% |
| documentation | see Safety & Documentation for available documents |
| grade | FG |
| Halal | |
| InChI | 1S/C3H7NO2S/c4-2(1-7)3(5) |
| InChI key | XUJNEKJLAYXESH-REOHCLBHSA |
| mp | 240 °C (dec.) (lit.) |
| optical activity | [α]26/D +8.0 to +9.5°, c = 2 in 5 M HCl |
| organoleptic | sulfurous |
| Quality Level | 300 ![]() |
| reg. compliance | EU Regulation 1334/2008 & 872/2012 |
| FDA 21 CFR 172.320 | |
| FDA 21 CFR 184.1271 | |
| SMILES string | N[C@@H](CS)C(O)=O |
| solubility | H2O: 25 mg/mL |
| Biochem/physiol Actions: | NMDA glutamatergic receptor agonist. |
| General description: | |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100 g in poly bottle |
| Packaging: | 5 kg in fiber drum |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Purity | ≥97% |
| mp | 240 °C (dec.) (lit.) |
| FEMA Number | 3263 |
| UNSPSC | 12164502 |

