China (Mainland)
sweeteners of D-Threonine 632-20-2 in China CAS NO.632-20-2
- FOB Price: USD: 1.00-1.00 /Metric Ton Get Latest Price
- Min.Order: 25 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,
- Available Specifications:
USP(1-2)Metric Ton
- Product Details
Keywords
- D-Threonine 632-20-2
- D-Threonine in China
- sweeteners of 632-20-2
Quick Details
- ProName: sweeteners of D-Threonine 632-20-2 in ...
- CasNo: 632-20-2
- Molecular Formula: C4H9NO3
- Appearance: Details see COA
- Application: Pharmaceuticals/Nutrition supplement
- DeliveryTime: Prompt shipment
- PackAge: 25kg/drum
- Port: Main Port in China
- ProductionCapacity: 10 Metric Ton/Quarter
- Purity: 99%
- Storage: Store in dry,dark,cool place
- Transportation: Sea/Air/Express
- LimitNum: 25 Kilogram
- Ash Content: Details see COA
- Heavy Metal: Details see COA
- Voluntary Standards: USP
- Valid Period: 7 days
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sweeteners of D-Threonine 632-20-2 in China
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| D-Threonine Basic information |
| Product Name: | D-Threonine |
| Synonyms: | (r)-threonine;d-threonin;D-α-Amino-β-hydroxybutyric acid ;D-THREONINE, 98% (99% EE/GLC);D-THREONINE, FREE OF ALLOTHREONINE;D-Threonine,>99%;D-THREONINE extrapure;(2R,3S)-2-Amino-3-hydroxybutyric acid, D-α-Amino-β-hydroxybutyric acid |
| CAS: | 632-20-2 |
| MF: | C4H9NO3 |
| MW: | 119.12 |
| EINECS: | 211-171-8 |
| Product Categories: | Amino ACIDS SERIES;Miscellaneous;PROTECTED AMINO ACID & PEPTIDES;Threonine [Thr, T];Amino Acids and Derivatives;alpha-Amino Acids;Amino Acids;Biochemistry;Amino Acids;amino acid;amino |
| Mol File: | 632-20-2.mol |
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| D-Threonine Chemical Properties |
| Melting point | 274 °C |
| alpha | 28 º (c=6, water) |
| Boiling point | 222.38°C (rough estimate) |
| density | 1.3126 (rough estimate) |
| refractive index | 28 ° (C=3, H2O) |
| storage temp. | Store at RT. |
| solubility | H2O: soluble |
| form | Crystals or Crystalline Powder |
| color | White |
| Water Solubility | soluble |
| Merck | 9380 |
| BRN | 1721643 |
| InChIKey | AYFVYJQAPQTCCC-STHAYSLISA-N |
| CAS DataBase Reference | 632-20-2(CAS DataBase Reference) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25-37/39-26 |
| WGK Germany | 3 |
| RTECS | XO8580000 |
| HS Code | 29225000 |
Details
D-Threonine Usage And Synthesis
Description D-threonine is the D-form of threonine, which is a kind of amino acids. It can be used for the preparation of enantiomerically pure 1, 3-butanediol. It is also used as the intermediate during the preparation of chiral compounds such as antibiotics. D-threonine is an effective chiral pool reagent which contains an extra stereo-center. For example, people has recently used it as the starting material for total synthesis of protected legionaminic acid.
Chemical Properties white crystalline powder or crystals
Uses A steroisomer of the proteinogenic amino acid L-threonine.
Definition ChEBI: An optically active form of threonine having D-configuration.
References #
Ikemi, Masahisa, et al. "D-Threonine Aldolase and Its Application to D -β-Hydroxy-£-Amino Acid Synthesis." (1992).
Paek SM, et al. "Recent Advances in Substrate-Controlled Asymmetric Induction Derived from Chiral Pool α-Amino Acids for Natural Product Synthesis." Molecules 21.7(2016):951.
D-Threonine Preparation Products And Raw materials
Raw materials Chloroacetyl chloride-->DL-Threonine-->AMINOACYLASE
Preparation Products (2S,3S)-2-Amino-3-methylpentanoic acid-->Cefbuperazone