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Quick Details

  • CAS No.: 56-45-1
  • Other Names: L-Serine
  • MF: C3H7NO3
  • EINECS No.: 200-274-3
  • Place of Origin: Shandong, China (Mainland)
  • Type: Auxiliaries and Other Medicinal Chemicals
  • Grade Standard: Medicine Grade
  • Usage: Animal Pharmaceuticals
  • Brand Name: sigma
  • Model Number: L-Serine
  • Purity: 99%min
  • Product Name: L-Serine
  • Molecular Weight: 105.09
  • Water solubility: 250 g/L (20℃)
  • Density: 1.6
  • Melting point: 222℃
  • L-Serine Appearance: White crystals or crystalline powder
  • Shelf life: 24 Months
  • Color: White
  • Sample: Availiable
  • PH: 5.5~6.5

Packaging & Delivery

Packaging Details 25kg/drum,1kg/bag or according to customer request
Delivery Time Within 2 days
99% L-Serine for Cosmetic industrial / CAS 56-45-1
 
1.Competitive price
2.Fast Delivery Within 2 days
3.SGS , BV, GMP,ISO approve
4.Professional factory
 
Product Description

Introduction of L-Serine

 

Serine (abbreviated as Ser or S) is an organic compound with the formula HO2CCH(NH2)CH2OH.It is one of the naturally occurring proteinogenic amino acids. Its codons are UCU, UCC, UCA, UCG, AGU and AGC. Only the L-stereoisomer appears naturally in proteins. It is not essential to the human diet, since it is synthesized in the body from other metabolites, including glycine. Serine was first obtained from silk protein, a particularly rich source, in 1865. Its name is derived from the Latin for silk, sericum. Serine's structure was established in 1902. By virtue of the hydroxyl group, serine is classified as a polar amino acid.
 
The biosynthesis of serine starts with the oxidation of 3-phosphoglycerate to 3-phosphohydroxypyruvate and NADH. Reductive amination of this ketone followed by hydrolysis gives serine. Serine hydroxymethyltransferase catalyzes the reversible, simultaneous conversions of L-serine to glycine (retro-aldol cleavage) and 5,6,7,8-tetrahydrofolate to 5,10-methylenetetrahydrofolate (hydrolysis).

 

Specification of L-Serine

Test Item

Specification

Product name

L-Serine

Assay

≥98.5%

Characteristic

White crystals or crystalline powder, Odorless, slightly sweet taste

Specific rotation[a]D20°

+14.0°~ +15.6°

Identification

AS PER CP2010

PH

5.5~6.5

Transmittance

≥98.0%

Chloride

≤0.02%

Sulfate

≤0.02%

Ammonium

≤0.02%

Other amino acids

≤0.5%

Loss on drying

≤0.2%

Residue on ignition

≤0.1%

Iron

≤0.001%

Heavy metals(as Pb)

≤10ppm

Arsenic

≤0.0001%

Bacterial endotoxins

≤12 EU/g

Advantage

1. Any inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & Formulation development.
7. Faster delivery:Sample order in stock and 3-7 days for bulk production.
8. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
9. After-Sale Service:
(1) International Authorized Third-Party Test For The Products You Demand.
(2) 60 Days Warranty of quality of goods.

Packaging & Shipping

                                   Shipping Terms                                                   

              By Express

                     By Air

                  By Sea

      Suitable for under 50kg

      Fast: 3-7 days

 

      High cost

      Door to door service,

      easy to pick up the goods

      Suitable for more than 50kg

      Fast: 3-7 days

      High cost

      Port to port, 

      professional broker needed

    Suitable for more than 500kg

    Slow: 7-45 days

    Low cost

    Port to port, 

    professional broker needed

 

 

 

Our Services

1. Your inquiry related to our products or prices will be replied in 12hours.

2. Well-trained and experienced staffs to answer your enquires in fluent English.

3. All our products have high quality warranties.

4. Sample order can be delivered within 3 working days, small order 3-5working days, mass order 7-10working days.

5. Samples can be offered by free,customers just need to pay the freight.But the freight can be returned to our customer after he/she places formal order with us.

 

Company Information

Qingdao Sigma Chemical Co., Ltd. Import And Export Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of Sigma is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

Sigma has become the "Top 500 Chinese manufacturing companies","Top 20 of global agrochemical sales".Sigma has 21 subsidiaries and holding companies.

 

 

FAQ

 Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2002.

Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.

Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account

Q4:Can you give me a discount price?
Surely,It depend on your qty

Q5: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.

Q6: 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.

 

 

 

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