Wholesale L-Theanine Green Tea Extract Amino Acid L Theanine Powder BV

• Customization: Available
• CAS No.: 616-91-1
• Formula: C5h9no3s
• EINECS: 210-498-3
• Color: White
• Appearance: Powder
• Assay: 98.5~101.0%
• pH: 2.0~2.8
• Specific Optical Rotation[a]D20°: +21~+27
• Melting Point, ºC: 106~110
• Transmittance: Min 98.0%
• Loss on Drying: Max 0.5%
• Residue on Ignition: Max 0.2%
• Chloride: Max 0.04%
• Sulfate: Max 0.03%
• Heavy Metals (as Pb): Max 0.001%
• Transport Package: Drum/Carton
• Specification: 25kg/drum/carton
• Trademark: songwal
• Origin: China
• HS Code: 29309090
• Production Capacity: 100mt/Month

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]D^20°	+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