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L-Allylglycine HCl

L-Allylglycine HCl is a glycine analogue.
L-Allylglycine HCl
L-Allylglycine HCl Chemical Structure CAS No.: 195316-72-4
Product category: Amino Acid Derivatives
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
10g
25g
Other Sizes
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Product Description
L-Allylglycine HCl is a glycine analogue.
L-Allylglycine hydrochloride is a glycine derivative and a non-proteinogenic amino acid featuring a distinct allyl side chain. This hydrochloride salt form of (S)-2-aminopent-4-enoic acid is a specific and irreversible inhibitor of glutamate decarboxylase (GAD), the enzyme responsible for GABA biosynthesis in the brain.
Biological Activity I Assay Protocols (From Reference)
Targets
The primary molecular target of L-Allylglycine is glutamate decarboxylase (GAD, EC 4.1.1.15), which catalyzes the conversion of L-glutamate to gamma-aminobutyric acid (GABA). By inhibiting GAD activity, this compound reduces GABA levels in the central nervous system, leading to decreased inhibitory neurotransmission and convulsant effects.
ln Vitro
Commercial ergot supplements have been made from amino acids and their derivatives. They affect the release of anabolic hormones, the availability of fuel for activity, the ability to think clearly under pressure, and the prevention of muscular damage brought on by exertion. They are regarded as advantageous synergistic food ingredients [1].
In vitro studies demonstrate that L-Allylglycine hydrochloride inhibits glutamate decarboxylase activity in brain homogenates and purified enzyme preparations. The compound acts as an irreversible inhibitor, binding to the active site and blocking the decarboxylation of glutamate, thereby reducing GABA biosynthesis in cell-free systems and neuronal cultures.
ln Vivo
In vivo, L-Allylglycine hydrochloride (150 mg/kg, intraperitoneal injection or 200 ug intranigral injection, single dose) induces convulsive behaviors in Sprague-Dawley rat models. The compound reduces GABA content in the hippocampus, cortex, and cerebellum, leading to running fits, partial rigidity, and full convulsions in treated animals.
Enzyme Assay
Cell-free GAD inhibition assays are performed using rat brain homogenates or purified enzyme in reaction buffer containing L-[14C]glutamate, pyridoxal phosphate (cofactor), and varying concentrations of compound (0.1-1000 uM). Reactions are incubated at 37degC for 30 minutes, stopped with HCl, and 14CO2 trapped on filter paper for scintillation counting to determine IC50 values.
Cell Assay
Cell-based assays for GAD inhibition utilize primary neuronal cultures or brain slices. Cells are treated with L-Allylglycine (10-500 uM) for 2-24 hours, then lysed for GABA quantification via HPLC with electrochemical detection or enzymatic assay. Alternatively, electrophysiological recordings measure alterations in GABAergic synaptic transmission.
Animal Protocol
Animal convulsant studies are conducted in Sprague-Dawley rats (200-300 g). Animals receive a single intraperitoneal injection of L-Allylglycine hydrochloride (150 mg/kg) or intranigral microinjection (200 ug). After administration, animals are observed for 60-120 minutes for latency to convulsion, seizure severity scores, and brain region GABA content measurements via LC-MS/MS.
ADME/Pharmacokinetics
Pharmacokinetic properties of L-Allylglycine in rodents include rapid absorption after intraperitoneal administration (Tmax ~30 minutes), brain penetration (brain-to-plasma ratio ~0.3-0.5), plasma half-life of 1-2 hours, volume of distribution approximately 0.6 L/kg, and elimination primarily via urine as unchanged drug or metabolites.
Toxicity/Toxicokinetics
Toxicological evaluation indicates that L-Allylglycine hydrochloride exhibits convulsant activity as a primary toxic effect. Acute toxicity studies show LD50 values around 200-300 mg/kg in mice (intraperitoneal). Chronic exposure may lead to sustained GABA depletion and neurotoxicity. The compound is not intended for therapeutic use due to its pro-convulsant properties.
References
[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1144.
Additional Infomation
This compound is a solid with molecular formula C5H10ClNO2 and molecular weight 151.59. It is soluble in DMSO (100 mg/mL) and stable at 4degC under nitrogen. Applications include studying GABAergic neurotransmission, epilepsy models, and enzyme inhibition mechanisms. For research use only, not for human administration.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H10CLNO2
Molecular Weight
151.59
Exact Mass
151.04
CAS #
195316-72-4
PubChem CID
44630067
Appearance
White to off-white solid powder
Melting Point
283 °C (dec.)
Index of Refraction
-10 ° (C=2, H2O)
LogP
1.476
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
3
Heavy Atom Count
9
Complexity
101
Defined Atom Stereocenter Count
1
SMILES
C=CC[C@@H](C(=O)O)N.Cl
InChi Key
DIDZZOWASZMNQW-WCCKRBBISA-N
InChi Code
InChI=1S/C5H9NO2.ClH/c1-2-3-4(6)5(7)8;/h2,4H,1,3,6H2,(H,7,8);1H/t4-;/m0./s1
Chemical Name
(2S)-2-aminopent-4-enoic acid;hydrochloride
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 100 mg/mL (659.67 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (16.49 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (16.49 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (16.49 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 6.5967 mL 32.9837 mL 65.9674 mL
5 mM 1.3193 mL 6.5967 mL 13.1935 mL
10 mM 0.6597 mL 3.2984 mL 6.5967 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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