L-Serine Cosmetic Grade
7 Inquiries
56-45-1
Cosmetics Grade
SHANGHAI
25kg/0.12kg Bag
2017-06-30
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Product Description
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Seller Information
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Inquiry History
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Description
The product is the water soluble mixing amino acid obtained after hydrolysis of Silk fibroin. The average molecular weight is about 90 and the product is also called as “Silk 90”. The product is white powder with pH value between 5 to 7 and positive ninhydrin reaction.
With silk from feed silkworm as raw materials, refined through biological process to get the mixed amino acid (silk essence), more than 85% of whose content are alanine, serine and glycin, is a functionally prominent nutrient with higher nutritional value.
Glycin and serine can not only be used as the essential materials of synthesizing protein in organism, but also be used as the predecessor of synthesizing the glutathione (GSH, SSG), which has certain preventive actions on heart disease and cancer. Meanwhile, the glycin also has the detoxication effects for some aromatics which can cause cancer. The rich alanine also helps promoting the metabolism of alcohol in human body and protecting liver. Moreover, tyrosine has obvious effect on preventing the old from Alzheimer disease.
Silk amino acid is very easy to permeate the derma layer of skin and get absorbed, nurturing skin as well. Due to its action in the enzyme metabolism, silk amino acid can keep and adjust moisture, prevent skin from ultraviolet radiation, restrain splash generation, facilitate anti-aging for skin.
Basic Info-
Product Name:
L-Serine
Other Name:L-Serine;Serine,L-;(S)-α-Amino-β-hydroxypropionic acid;β-Hydroxy-L-alanine;Serine;L-(-)-Serine;Propanoic acid,2-amino-3-hydroxy-,(S)-;(S)-2-Amino-3-hydroxypropanoic acid;(S)-Serine;L-3-Hydroxy-2-aminopropionic acid;(-)-Serine;L-Alanine,3-hydroxy-;L-Ser;(2S)-2-Amino-3-hydroxypropanoic acid;(2S)-2-Azaniumyl-3-hydroxypropanoate;2: PN: WO2020113403 TABLE: L1 claimed sequence;4: PN: WO2020191289 PAGE: 118 claimed sequence;10: PN: WO2021055880 SEQID: 11 claimed protein;6898-95-9;154605-73-9
CAS No.:56-45-1
Molecular Formula:C3H7NO3
InChIKeys:InChIKey=MTCFGRXMJLQNBG-REOHCLBHSA-N
Molecular Weight:105.09300
Exact Mass:105.09
EC Number:200-274-3
UNII:452VLY9402
NSC Number:760115
NCI Thesaurus Code:C29613
Color/Form:HEXAGONAL PLATES OR PRISMS|COLORLESS CRYSTALS
HScode:29225000
Categories:
Characteristics-
PSA:
83.55000
XLogP3:-3.1
Appearance:Solid
Density:1.6 g/cm3 @ Temp: 22 °C
Melting Point:228 °C (decomp)
Boiling Point:394.8ºC at 760mmHg
Flash Point:192.6ºC
Refractive Index:1.519
Water Solubility:H2O: 425.0 mg/mL;425.0 mg/mL
Storage Conditions:Store at 0-5ºC
Specific rotation:SPECIFIC OPTICAL ROTATION: -6.83 DEG @ 20 °C/D (1.5 G IN 15 G AQ SOLN); +14.45 DEG @ 25 °C/D (C= 0.5 G IN 5.6 NORMAL HCL)
Taste:SWEETISH TASTE, INSIPID AFTERTASTE
PKA:2.21(at 25 °C)
Dissociation Constants:2.21 (at 25 °C)|pKa = 2.21; pKb = 9.15
Collision Cross Section:136.66 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|136.2 Ų [M-H]-
Experimental Properties:DECOMPOSES @ 228 °C; SUBLIMES @ 150 °C IN HIGH VACUUM (10-4 MM HG); MOLECULAR ROTATION IN 5 N HCL +15.0 DEG|OPTICALLY ACTIVE
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Location:
Huzhou economic development zone, tian 487 cross road
Huzhou Xintiansi Bio-tech Co., Ltd. is an enterprise of agricultural science and technology in Zhejiang Province, which integrates the research and development, production and sales of sericulture resources, is founded jointly by Huzhou Tianming Import and Export Co., Ltd. and Huzhou Tiansi Daily Chemical Co., Ltd. The total amount of its registered capital is 5 million Yuan, and the annual output of silk and silkworm chrysalis biological products is above 120 tons. Annual value of production is over 30 million Yuan. The company has passed the ISO9001 certification. Huzhou Tiansi Daily Chemical Co., Ltd. is the earliest enterprise engaging in sericulture research and industrialized manufacturing in China. Since 1995, the Company had cooperated with Shanghai Institute of Entomology, Chinese Academy of Sciences, Suzhou University, Zhejiang University, Zhejiang University of Technology, etc., and always engaged in functional application research and development of sericulture resources, which also obtained relatively good achievement. Many technologies filled up domestic and overseas vacancy. High-purity silk peptide powder and dissolving sericin powder are respectively titled with high-tech product of Zhejiang Province and provincial technology innovation funds. Silkworm protein powder and silkworm amino acids have obtained the production certificate approved and issued by the Provincial Bureau of Quality Supervision.Currently, main products developed by our company mainly include 22 kinds of products subordinating three series of silk protein, silkworm chrysalis protein and skin adaptive products of silk protein. Silk series products include silk mixed amino acids (silk essence), silk peptide, silk glue and silk powder (silk fibroin powder); Silkworm chrysalis series products include silkworm chrysalis amino acids and high zinc protein powder. More than 75% of the products are exported mainly to Japan, South Korea, America, EU, Malaysia, Hong Kong, Taiwan as well as other countries and regions. Taking advantage of the research achievement of the silk protein over the years, our company developed and produced silk protein skin-caring products in cooperation with partners home and abroad. The main products include "The Story of Silk" sanitary napkins, protective pad, diaper, facial mask, etc. Our company also has applied for two national invention patents and six utility model patents. Because of its outstanding efficacy such as skin care, moisturizing and anti-bacteria, this product enjoys high reputation among customers.Huzhou Xintiansi Bio-tech Co., Ltd. is aiming at being the best manufacturer and supplier of silk protein and silkworm chrysalis in China.
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Inquiry History7 Inquiries
Country Product Purchase Quantity Date Posted 
India
L-serine
3.00 KG Dec 19, 2024
India
L-Serine
1 KG Aug 14, 2025
India
L-Serine
1 MT Apr 23, 2025 
Greece
SERINE (Ser, S)
700.00 KG Sep 24, 2025
India
L-serine
25.00 KG Mar 13, 2025 
Germany
Potassium Sorbate
50.00 KG May 8, 2025
Germany
L-carnitine
25.00 KG May 8, 2025 Post an enquiry for this product
