Natural Amino Acid, Wholesale Amino Acid, N-Acetyl-L-Cysteine¹

Product Description INTRODUCTIONCAS NO.: 616-91-1Molecular Formula: C5H9NO3SMolecular Weight: 163.195Dencity: 1.3±0.1 g/cm3Boiling point: 407.7±40.0 °C at 760 mmHgMelting point: 106-108 °C(lit.)Flash(ing) point: 200.4±27.3 °CEINECS NO.: 210-498-3N-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.SPECIFICATIONITEMSPECIFICATIONSTEST RESULTSAppearanceWhite crystals or crystalline powderWhite crystalline powderAssay, %98.5~101.099.3IdentificationInfrared absorptionConformspH value2.0~2.82.21Specific optical rotation[a]D20°+21°~+27°+25.4°Melting point, oC106~110107~109Transmittance, %≥98.0%98.9%Loss on drying, % ≤0.50.15Residue on ignition, % ≤0.20.09Chloride, %≤0.04<0.04Sulfate, %≤0.03<0.03Ammonium, %≤0.02<0.02Heavy metals (as Pb), % ≤0.001<0.001Iron (Fe), %≤0.002<0.002Other amino acidsNot detectableNot 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

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