616-91-1
C5h9no3s
210-498-3
White
Powder
98.5~101.0%
2.0~2.8
+21~+27
106~110
Min 98.0%
Max 0.5%
Max 0.2%
Max 0.04%
Max 0.03%
Max 0.001%
songwal
Drum/Carton
25kg/drum/carton
China
29309090
Product Description
INTRODUCTION
CAS NO.: 616-91-1
Molecular Formula: C5H9NO3S
Molecular Weight: 163.195
Dencity: 1.3±0.1 g/cm3
Boiling point: 407.7±40.0 °C at 760 mmHg
Melting point: 106-108 °C(lit.)
Flash(ing) point: 200.4±27.3 °C
EINECS NO.: 210-498-3
N-Acetyl-L-Cysteine (NAC) is a glutathione precursor derived from L-cysteine, long known for its antioxidant properties. NAC has a variety of clinical benefits, seen in cough, dry eyes, and influenza. It is also commonly used as an antidote for acetaminophen overdose and as a means to reduce nitrate tolerance.
SPECIFICATION
| ITEM | SPECIFICATIONS | TEST RESULTS |
| Appearance | White crystals or crystalline powder | White crystalline powder |
| Assay, % | 98.5~101.0 | 99.3 |
| Identification | Infrared absorption | Conforms |
| pH value | 2.0~2.8 | 2.21 |
| Specific optical rotation[a]D20° | +21°~+27° | +25.4° |
| Melting point, ºC | 106~110 | 107~109 |
| Transmittance, % | ≥98.0% | 98.9% |
| Loss on drying, % | ≤0.5 | 0.15 |
| Residue on ignition, % | ≤0.2 | 0.09 |
| Chloride, % | ≤0.04 | <0.04 |
| Sulfate, % | ≤0.03 | <0.03 |
| Ammonium, % | ≤0.02 | <0.02 |
| Heavy metals (as Pb), % | ≤0.001 | <0.001 |
| Iron (Fe), % | ≤0.002 | <0.002 |
| Other amino acids | Not detectable | Not detectable |
FAQ
1. What's your payment terms?
T/T, D/P, L/C
2. What's your delivery time?
Usually we will arrange the shipment within 14 days.
3. How about the packing?
Usually with 25 kg bag/carton/drum.
4. How about the validity of the products?
Usually 2 or 3 years.
5. What documents you provide?
Usually, Commerical Invoice, Packing List, Country of Origin, Insurance Policy, Bill of loading, COA.
6. What is loading port?
Usually, Qingdao, Tianjin, Ningbo and Shanghai sea port
