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L-THREONINE 100%

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CAS No.:

72-19-5

Port:

shanghai

Packaging:

bag

Price valid (until):

2025-04-04

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Hangzhou Dawn Ray Pharmaceutical Co.,Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

D-Biotin,Tobramycin base,L(-)-Carnitine base,Polymyxin B sulfate USP,Kanamycin sulfate monohydrate,Finasteride 99% USP

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Threonine was isolated and identified by W. C. Rose in 1935 from the hydrolysis products of fibrous proteins, and has been proved to be the last essential amino acid discovered, it is the second or third limiting amino acid of livestock and poultry, it has extremely important physiological role in the animal body. Such as promoting growth, improve immune function, etc.; balanced dietary amino acids, so that the proportion of amino acids closer to the ideal protein, from Chemicalbook and reduce the requirements of livestock and poultry on the protein content of the feed. Lack of threonine can lead to reduced animal feed intake, stunted growth, reduced feed utilization, immune function inhibition and other symptoms. In recent years, lysine and methionine synthetics have been widely used in feed, and threonine has gradually become a limiting factor affecting animal production performance, and further research on threonine can help to effectively guide livestock and poultry production.

Basic Info

Product Name:

L-Threonine

Other Name:

L-Threonine;Threonine,L-;Butanoic acid,2-amino-3-hydroxy-,[R-(R*,S*)]-;Threonine;Threonin;[R-(R*,S*)]-2-Amino-3-hydroxybutanoic acid;(S)-Threonine;L-(-)-Threonine;2-Amino-3-hydroxybutyric acid;NSC 16589;NSC 46701;48: PN: WO2004076659 FIGURE: 7 claimed protein;46: PN: WO2005016244 PAGE: 70 claimed protein;49: PN: WO2005016244 PAGE: 70 claimed protein;3046: PN: WO2004111636 SEQID: 516 unclaimed protein;2: PN: US20090069547 PAGE: 10 claimed protein;17: PN: WO2011044089 SEQID: 18 claimed protein;4: PN: WO2012076822 PAGE: 51 claimed sequence;(2S,3R)-2-Amino-3-hydroxybutanoic acid;13095-55-1;25275-17-6;36676-50-3;154605-64-8;154605-68-2;1043597-96-1;1370710-06-7;1644578-86-8

CAS No.:

72-19-5

Molecular Formula:

C4H9NO3

InChIKeys:

InChIKey=AYFVYJQAPQTCCC-GBXIJSLDSA-N

Molecular Weight:

119.11900

Exact Mass:

119.12

EC Number:

200-774-1

UNII:

2ZD004190S

NSC Number:

760118

DSSTox ID:

DTXSID2046412

NCI Thesaurus Code:

C29602

Color/Form:

Colorless crystals|Crystals

HScode:

29225000

Categories:

Amino Acids and Proteins

Characteristics

PSA:

83.55000

XLogP3:

-2.9

Appearance:

Solid

Density:

1.307g/cm3

Melting Point:

256 °C (decomp)

Boiling Point:

345.803ºC at 760 mmHg

Flash Point:

162.936ºC

Refractive Index:

1.507

Water Solubility:

H2O: 97.0 mg/mL

Storage Conditions:

Store at RT.

Vapor Pressure:

1.32X10-8 mm Hg at 25 deg C (est)

PKA:

5.6None

Henrys Law Constant:

Henry's Law constant = 7.24X10-14 atm-cu m/mol at 25 °C (est)

Dissociation Constants:

5.60|pKa1' = 2.63 (SRC: carboxylic acid); pKa2' = 10.43 (SRC: amine)

Collision Cross Section:

141.36 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|122 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|126.7 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|120.2 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|129.2 Å² [M-H]-

Experimental Properties:

Orthorhombic crystals, decomposes at 229-230 °C /Threonine, DL-form hemihydrate/|UV: 1-34 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /Threonine (DL)/

See More L-Threonine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions 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.

See More L-Threonine Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
D-Biotin,Tobramycin base,L(-)-Carnitine base,Polymyxin B sulfate USP,Kanamycin sulfate monohydrate,Finasteride 99% USP

Location:
1613 Guangyin Building,No.42 E.Fengqi Road,Hangzhou,310012 China.

Payment Terms:
TT against copy of documents,L/C

Average lead Time:
7

Total Annual Revenue:
$25 million-$50 million

Total Employees:
11-50

Year of Establishment:
2011

Dawn Ray is a R&D and process improvement company,which is located in Hangzhou, Zhejiang province,China.We are dealing in multi-application of pharmaceuticals(APIs),antibiotics,food additives,peptides and plant extracts.

Dawn Ray has a wide range of products from milligram up to thousands of kilogram quantities.We are also increasing our breed all the time.Our products have been exported all over the world and have a good reputation.

Dawn Ray promises that we can offer you qualified products and excellent service in good prices.Our aim is "Best goods,best service".We sincerely invite customers from all over the world to visit our company,establish business relations and both get win.

Process Capacity: Synthetic,Ferment,extract

After-sale Service:24 hours on skype for business

Inquiry History

35 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	L-Threonine	1.00 KG	May 20, 2025
India	L-Threonine	1.00 KG	May 25, 2026
India	L-Threonine	1.00 MT	Apr 2, 2026
Russia	L-Threonine	100 MT	Apr 1, 2026
India	L-Threonine	10.00 MT	Feb 25, 2026
India	L- threonine	25.00 KG	Dec 11, 2025
Ecuador	L-Threonine	1000 KG	Aug 13, 2025
Pakistan	l Threonine	25000 KG	Jul 1, 2025
Pakistan	L Threonine	1 MT	Jun 27, 2025
United States	L-Threonine	30 MT	Jun 18, 2025
United Kingdom	L-Threonine	100.00 MT	Jun 13, 2025
India	L-Threonine	20.00 TON	May 17, 2025
India	L-THREONINE	100.00 KG	Mar 25, 2025
Thailand	L-Threonine	1 KG	Mar 17, 2025
Pakistan	L-THREONINE	27000 KG	Mar 3, 2025
India	L-Threonine pharma grade	25.00 KG	Feb 8, 2025
Canada	L-Threonine	1 20' Fcl	Nov 26, 2024
Serbia	threonine	20.00 TON	Dec 20, 2023
India	L Threonine	1.00 MT	Jan 4, 2026
India	L-Threonine	500.00 KG	Dec 15, 2025

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