| Size | Price | Stock | Qty |
|---|---|---|---|
| 100mg |
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| 250mg | |||
| Other Sizes |
| Targets |
The human body metabolizes phenylephrine, an α-receptor agonist, into m-hydroxymandelic acid (MHMA) and m-hydroxyphenylglycol (MHPG) [1]. The most likely source of MHMA in urine is either m-synephrine (phenylephrine) or m-octopamine, or possibly both [1].
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|---|---|
| ln Vitro |
The human body metabolizes phenylephrine, an α-receptor agonist, into m-hydroxymandelic acid (MHMA) and m-hydroxyphenylglycol (MHPG) [1]. The most likely source of MHMA in urine is either m-synephrine (phenylephrine) or m-octopamine, or possibly both [1].
m-Octopamine has about 1/100 the pressor activity of (−)-norepinephrine, while m-synephrine has about 1/3 the pressor activity of norepinephrine in vitro using reactivity of aortic smooth muscle from rats as a measure of α-adrenergic activity. [2] |
| ln Vivo |
m-Octopamine and m-synephrine have pressor activity in vivo. m-Synephrine is a more potent pressor agent than m-octopamine. [2]
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| ADME/Pharmacokinetics |
3-Hydroxymandelic acid (MHMA) is a meta-synephrine and meta-octylamine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine meta-methionine glucuronide meta-methionine ...
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| References |
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| Additional Infomation |
3-Hydroxymandelic acid is a 2-hydroxy monocarboxylic acid formed by replacing the hydroxyl group at the 3' position of mandelic acid. It plays a role in human metabolism. It is a 2-hydroxy monocarboxylic acid belonging to the phenolic class of compounds. It is functionally related to mandelic acid.
3-Hydroxymandelic acid has been reported to be present in Aloe africana, and there is relevant data. 3-Hydroxymandelic acid (MHMA) was recently identified in human urine by gas chromatography-mass spectrometry. It may be derived from meta-synephrine or meta-synephrine. Meta-synephrine is present in over-the-counter nasal decongestants (typical concentration of 5 mg/mL for sprays). Taking medications containing meta-synephrine leads to increased excretion of MHMA and meta-synephrine glucuronide in urine. After excluding patients taking meta-synephrine, there was no significant difference in urinary MHMA excretion between normotensive and hypertensive patients. [2] |
| Molecular Formula |
C8H8O4
|
|---|---|
| Molecular Weight |
168.1467
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| Exact Mass |
168.042
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| CAS # |
17119-15-2
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| PubChem CID |
86957
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| Appearance |
Off-white to light brown solid powder
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| Density |
1.48g/cm3
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| Boiling Point |
424.3ºC at 760mmHg
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| Melting Point |
128-132ºC
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| Flash Point |
224.5ºC
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| Vapour Pressure |
5.91E-08mmHg at 25°C
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| Index of Refraction |
1.637
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| LogP |
0.51
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| Hydrogen Bond Donor Count |
3
|
| Hydrogen Bond Acceptor Count |
4
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| Rotatable Bond Count |
2
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| Heavy Atom Count |
12
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| Complexity |
168
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| Defined Atom Stereocenter Count |
0
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| InChi Key |
OLSDAJRAVOVKLG-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C8H8O4/c9-6-3-1-2-5(4-6)7(10)8(11)12/h1-4,7,9-10H,(H,11,12)
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| Chemical Name |
2-hydroxy-2-(3-hydroxyphenyl)acetic acid
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO : ~100 mg/mL (~594.71 mM)
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|---|---|
| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (14.87 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 (14.87 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. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (14.87 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 5.9471 mL | 29.7354 mL | 59.4707 mL | |
| 5 mM | 1.1894 mL | 5.9471 mL | 11.8941 mL | |
| 10 mM | 0.5947 mL | 2.9735 mL | 5.9471 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.
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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