98% HPLC EGCG Tea polyphenol CAS 989-51-5

Basic Info

Model No.: (-)-Epigallocatechin gallate-CAS 989-51-5

Certification: RoHS, SGS, BRC, ISO, FDA, HACCP

Assay Method: HPLC-MS

Application Form: Other

Application: Food, Health Care Products, Medicine, Other

State: Powder

MF:: C22H18O11

MW:: 458.37

EINECS:: 479-560-7

Melting Point: 222-224°C

Refractive Index: -175.5 ° (C=1, EtOH)

Storage Temp.: 2-8°C

Solubility: H2O: ≥5mg/mL, Clear

Water Solubility: Soluble In Ethanol, Dimethyl Formamide, Water.

PSA: 197.37000

Color: White Powder

Provide: (-)-Epigallocatechin gallate MSDS; (-)-Epigallocatechin gallate COA

Additional Info

Packaging:  in 25kg drum

Productivity: 10000kg per month

Brand: zhishang

Transportation: Ocean,Land,Air

Place of Origin: Shandong, China (Mainland)

Supply Ability: in stock

Certificate: ISO CE

HS Code: 989-51-5

Port: Shanghai,Tianjin,Shenzhen

Product Description

Description of Plant Extracts L-Theanine 989-51-5

L-Theanine is derived from tea leaves. Tea is native to eastern Asia and is a member of the Theaceae family. This evergreen shrub or tree grows to over 9 m in height and is pruned from 60 cm to 1.5 m for cultivation. Its dark green, serrated-edged leaves are alternate and oval, while its white and fragrant blossoms appear singly or in clusters. Plant Extracts L-Theanine 989-51-5 has also been isolated from the edible mushroom Boletus badius. The mushroom is commonly found in late summer and autumn in the United States, and Plant Extracts L-Theanine 989-51-5 is reddish brown to dark brick/brown in color with a 4 to 12 cm tall stem. The flesh is white to yellow in color, and becomes a light blue/green color when cut or bruised.

Advantage of Plant Extracts L-Theanine 989-51-5

(1) High quality  (2) Competitive price  (3) First-class service and product  

(4) Environment friendly  (5) Great performance  (6) Easy application

Specification of Plant Extracts L-Theanine 989-51-5

Assay by (HPLC)

99% EGCG



Light yellow powder


Odor and taste



Mesh size/sieve

80 mesh



Practically Soluble in water and ethanol


Residual solvent

Ethanol: ≤ 0.5 %


Loss on drying



Sulphated ash

≤ 0.2 %



Function of Plant Extracts L-Theanine 989-51-5                              1.L-Theanine can reduce blood pressure, blood sugar, blood lipids.

2.L-Theanine has the function of removing radicals and anti-aging.

3.L-Theanine can enhance the immune function and prevention of colds. 

4.L-Theanine will anti-radiation,anti-cancer,inhibiting the increasing of cancer cell.

5.L-Theanine used to anti-bacterium, with the function of sterilization and deodorization.

Application of Plant Extracts L-Theanine 989-51-5                 

1. Plant Extracts L-Theanine 989-51-5 applied in cosmetics field, l-theanine owns the effect of anti-wrinkle and anti-Aging.

2. Plant Extracts L-Theanine 989-51-5 applied in food field, l-theanine is used as natural antioxidant, antistaling agent, and anti-fading agents.

3. Plant Extracts L-Theanine 989-51-5 applied in pharmaceutical field, l-theanine is used to prevent and cure cardiovascular disease, diabetes.

Product expansion

1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. 

2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.

3> Fragrance And Spices: Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.

4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, resins, additives, and other intermediates.

5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion.

6> Pharmaceutical Intermediates: The so-called pharmaceutical intermediates, refers to the production of pharmaceutical products in the process, the use of raw materials, materials, accessories and other intermediate products.

7> Agricultural Chemicals: Research and agriculture related chemical, including pesticide, plant growth regulator, fertilizer, compound fertilizer, herbicide etc.

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