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| CAS No.: | 632-20-2 |
|---|---|
| Name: | D-Threonine |
| Article Data: | 106 |
| Molecular Structure: | |
|
|
|
| Formula: | C4H9NO3 |
| Molecular Weight: | 119.12 |
| Synonyms: | (R)-Threonine;Threonine, D-; |
| EINECS: | 211-171-8 |
| Density: | 1.307 g/cm3 |
| Melting Point: | 274 °C |
| Boiling Point: | 345.8 °C at 760 mmHg |
| Flash Point: | 162.9 °C |
| Solubility: | soluble in water |
| Appearance: | white crystalline powder or crystals |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 24/25-37/39-26 |
| PSA: | 83.55000 |
| LogP: | -0.52060 |
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(2R,3R)-2-Benzyloxycarbonylamino-4,4,4-trichloro-3-hydroxy-butyric acid
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogen; palladium dihydroxide In methanol under 760 Torr; for 3h; | 100% |
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogenchloride; water at 90℃; for 24h; | 98% |
| Conditions | Yield |
|---|---|
| With sodium methylate at 25℃; for 4h; Yields of byproduct given; | A 96% B n/a |
| With sodium methylate at 25℃; for 1h; Yield given; | A 93% B n/a |
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With 3400 U whole cells In aq. phosphate buffer at 37℃; for 5h; pH=7; Enzymatic reaction; | 90.7% |
| With L-threonine dehydratase Resolution of racemate; Enzymatic reaction; | n/a |
- 197302-88-8
N-acetyl-D-threonine
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogenchloride In methanol | 85% |
| With Agrobacterium tumefaciens C58 recombinant Atu3266 protein; water at 30℃; for 15h; pH=7.6; Enzymatic reaction; |
- 205534-30-1
Acetic acid (1S,2R)-2-acetylamino-1-methyl-2-((S)-1-phenyl-ethylcarbamoyl)-ethyl ester
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogenchloride In methanol for 25h; Heating; | 74% |
| Conditions | Yield |
|---|---|
| With hydrogen bromide |
- 153893-46-0
N-chloroacetyl-L-threonine
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| Hydrolysis.mit Hilfe eines Enzym-Praeparats aus Nieren und Kochen des unveraendert zurueckbleibenden N-Chloracetyl-Ds-threonins mit 2n-HCl; |
- 43188-50-7
N-(toluene-4-sulfonyl)-DS-threonine
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogenchloride |
- 906324-06-9
N-benzoyl-Ds-threonine
- 632-20-2
D-Threonine
| Conditions | Yield |
|---|---|
| With hydrogenchloride |
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Specification
The IUPAC name of D-Threonine is (2R,3S)-2-amino-3-hydroxybutanoic acid. With the CAS registry number 632-20-2, it is also named as (R)-Threonine. The product's categories are Amino Acids Series; Miscellaneous; Protected Amino Acid & Peptides; Threonine [Thr, T]; Amino Acids and Derivatives; alpha-Amino Acids; Amino Acids; Biochemistry; Amino Acids, and the other registry number is 6350-52-3. Besides, it is white crystalline powder or crystals, which should be stored in sealed containers in a cool, dry place away from oxidizing agents. In addition, its molecular formula is C4H9NO3 and molecular weight is 119.12.
The other characteristics of this product can be summarized as: (1)EINECS: 211-171-8; (2)ACD/LogP: -1.23; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): -3.73; (5)ACD/LogD (pH 7.4): -3.73; (6)ACD/BCF (pH 5.5): 1; (7)ACD/BCF (pH 7.4): 1; (8)ACD/KOC (pH 5.5): 1; (9)ACD/KOC (pH 7.4): 1; (10)#H bond acceptors: 4; (11)#H bond donors: 4; (12)#Freely Rotating Bonds: 4; (13)Index of Refraction: 1.507; (14)Molar Refractivity: 27.13 cm3; (15)Molar Volume: 91.1 cm3; (16)Surface Tension: 60 dyne/cm; (17)Density: 1.307 g/cm3; (18)Flash Point: 162.9 °C; (19)Melting Point: 274 °C; (20)alpha: 28 °(c=6, water); (21)Enthalpy of Vaporization: 68.32 kJ/mol; (22)Boiling Point: 345.8 °C at 760 mmHg; (23)Vapour Pressure: 3.77E-06 mmHg at 25 °C.
Preparation and Uses of D-Threonine: frist of all, you can use DL-Threonine to react with Chloroacetyl chloride. After concentrated in vacuo, please extract it by the use of Acetone. At last, you would obtain this chemical by resolution with acylase. Additionally, this chemical is used for biochemical research.
When you are using this chemical, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. In case of contact with eyes, please rinse immediately with plenty of water and seek medical advice. And you should wear suitable gloves and eye/face protection to avoid contact with skin and eyes.
People can use the following data to convert to the molecule structure.
(1)SMILES: O=C(O)[C@H](N)[C@@H](O)C
(2)InChI: InChI=1/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m0/s1
(3)InChIKey: AYFVYJQAPQTCCC-STHAYSLIBE
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LD50 | intraperitoneal | 5361mg/kg (5361mg/kg) | BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Archives of Biochemistry and Biophysics. Vol. 64, Pg. 319, 1956. |