Customization: | Available |
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Certification: | ISO, FDA |
Assay Method: | HPLC, UV, Gc |
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English name | L-theanine |
Latin Name | Gamellia sinensis O.Ktze |
CAS No | 3081-61-6 |
Molecular forula | C22H18O11 |
Molecular Weight | 458.3717 |
Specification | Synthetic L-Theanine 98% Natural Extract L-Theanine 40% |
Use Part | Leaves |
Appearance | brown to reddish brown powder |
Mesh size | 100% pass 80 Mesh |
Assay | 98.0~102.0% |
PH | 5.0~6.0 |
Specific rotation | +7.7°~+8.5° |
State of solution (Transmittanc e T430) |
clear & colorless ≥98.0% |
Chloride(Cl) | 19.89~20.29% |
Identification by IR | Authenic |
Melting point | 200.0-210.0ºC |
Ammonium(NH4) | ≤0.02% |
Sulfate(SO4) | ≤0.02% |
Iron(Fe) | ≤10ppm |
Heavy metals(Pb) | ≤10ppm |
Arsenic(As) | ≤1ppm |
Other amino acids | conforms |
Loss on drying | 8.5~12.0% |
Residue on ignition | ≤0.10% |
Established in 2007, the Nutriherb team is a leading manufacturer of plant extracts, specializing in the extraction of active ingredients from natural plants for the beauty, health, pharmaceutical, and food industries. We leverage advanced technology and state-of-the-art equipment to research and produce high-quality plant extracts.
In terms of quality management, we strictly adhere to Good Manufacturing Practice (GMP) and ISO standards. We collaborate with third-party laboratories to rigorously monitor and test product quality, ensuring compliance with international quality benchmarks.
Committed to excellence, we provide our customers with high-quality plant extracts and offer tailored services to deliver personalized solutions that meet specific requirements.
Q1: How to contact with us?
Click the "Contact Supplier" And then send us message the product you interest in, you will get valid reply within TWO hours.
Q2:Which kind of payment terms do you accept?
For small order,you can pay by T/T,or Paypal,nomal order by T/T to our company account
Q3:Can you give me a discount price?
Sure,It depends on your qty.
Q4:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q5: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q6:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us,we will send you free goods for replacement or refund your loss.