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.
Pricing & pack sizes
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 |
|---|---|
| SKU | 11557293 |
| 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
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Health Hazard
GHS07
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
Safety Data Sheets (SDS)
Available in PT, IT, FR, ES, DE, EN.
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PT - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · PT · 195 KB
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IT - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · IT · 191 KB
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FR - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · FR · 195 KB
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ES - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · ES · 193 KB
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DE - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · DE · 195 KB
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EN - (11557293) N-ACETYL-L-CYSTEINE [616-91-1].pdf
SDS · EN · 191 KB
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.
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.