Molekula
N-Acetyl-L-cysteine
N-Acetyl-L-cysteine is a derivative of the amino acid L-cysteine used as a mucolytic agent and antioxidant, commonly in respiratory therapies and detoxification protocols. It has a CAS number of 616-91-1, molecular formula of HSCH₂CH(NHCOCH₃)CO₂H, and a molecular weight of 163.19 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies N-Acetyl-L-cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
N-Acetyl-L-cysteine is a derivative of the amino acid L-cysteine used as a mucolytic agent and antioxidant, commonly in respiratory therapies and detoxification protocols. It has a CAS number of 616-91-1, molecular formula of HSCH₂CH(NHCOCH₃)CO₂H, and a molecular weight of 163.19 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies N-Acetyl-L-cysteine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 106 - 112°C |
| Specific rotation | +21° - +25° |
| Heavy metals | <10ppm |
| Arsenic | <1ppm |
| pH | 2.0 - 2.8 |
| Loss on Drying | max 1.0% |
| Sulfate | <0.03% |
| Assay | 98% min |
| Iron | <20ppm |
| Residue on Ignition | max .5% |
| Ammonium | <0.02% |
| Cl | <0.04% |
| State of Solution | >98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 616-91-1 |
| Molecular Formula | HSCH2CH(NHCOCH3)CO2H |
| Molecular Weight | 163.19 |
| SMILES | CC(=O)N[C@@H](CS)C(=O)O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29309016 |
| Tariff Code | 2930901600 |
Safety & GHS
-
Explosive
GHS01
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is N-Acetyl-L-cysteine used for?
N-Acetyl-L-cysteine is commonly used as a mucolytic agent to break down mucus and as a precursor to glutathione for antioxidant support.
What is the chemical formula and molecular weight of N-Acetyl-L-cysteine?
The formula is HSCH2CH(NHCOCH3)CO2H and the molecular weight is 163.19 g/mol.
How should N-Acetyl-L-cysteine be stored?
It should be stored at 2 to 8 °C to maintain stability and prevent degradation.
What grade of N-Acetyl-L-cysteine does Molekula supply?
Molekula supplies N-Acetyl-L-cysteine in research grade, suitable for laboratory use.
Can Molekula supply N-Acetyl-L-cysteine in bulk quantities?
Yes, Molekula can supply N-Acetyl-L-cysteine in bulk; please contact our sales team for volume pricing and availability.
What documentation comes with an order of N-Acetyl-L-cysteine?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.