Phlorizin (Floridzin; NSC 2833)

Alias: NSC-2833; NSC 2833; NSC2833; Phlorizin; phloridzin; phloretin-2'-β-D-glucopyranoside; AI3-19835; Phloretin 2'-glucoside; Phloretin-2'-O-beta-glucoside; Phlorizoside; Phlorrhizin
Cat No.:V5117 Purity: ≥98%
Phlorizin (phloridzin), a glucoside of phloretin which is a dihydrochalcone and a family of bicyclic flavonoids, is a potent and non-selective competitive SGLT inhibitor with Kis of 300 and 39 nM for hSGLT1 and hSGLT2, respectively.
Phlorizin (Floridzin; NSC 2833) Chemical Structure CAS No.: 60-81-1
Product category: SGLT
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
500mg
1g
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5g
10g
25g
50g
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Other Forms of Phlorizin (Floridzin; NSC 2833):

  • Phlorizin dihydrate (Phloridzin hydrate; Floridzin dihydrate)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Phlorizin (phloridzin), a glucoside of phloretin which is a dihydrochalcone and a family of bicyclic flavonoids, is a potent and non-selective competitive SGLT inhibitor with Kis of 300 and 39 nM for hSGLT1 and hSGLT2, respectively. Moreover, phenolizin inhibits the activity of Na+/K+-ATPase. Due to its ability to compete with D-glucose for binding to the transporter/carrier, phenorizin is a competitive inhibitor of SGLT1 and SGLT2, which lowers blood glucose levels by reducing renal glucose transport. Phlorizin was researched as a possible medication for type 2 diabetes, but more promising and selective synthetic analogs, like canagliflozin and dapagliflozin, have since supplanted it.

Biological Activity I Assay Protocols (From Reference)
Targets
hSGLT2 ( Ki = 39 nM ); hSGLT1 ( Ki = 300 nM ); Na+/K+-ATPase
ln Vitro
Phlorizin is a dihydrochalcone that can be found in the bark of fruit trees such as cherries, apples, and pears (Pyrus communis). As a competitive inhibitor of SGLT1 and SGLT2, phenorizin lowers blood glucose levels by decreasing renal glucose transport.[1] The main pharmacological effects of phenylurizin include the production of renal glycosuria and the inhibition of intestinal glucose absorption via the sodium-glucose symporters found in the small intestine's mucosa and proximal renal tubule. These effects are beneficial for the treatment of diabetes, obesity, and stress hyperglycemia.[2]
ln Vivo
Before root bark dye treatment, the SDT contaminant concentration was 370±49 mg/dL. Six hours after labeling, the formaldehyde concentration in the root bark dye-treated group was close to normal levels (139±32 mg/dL). After 12 weeks, the specific gravity of SDT treated with root bark cherry was heavier than that treated with active substances. Root bark cherry treatment significantly reduced neuronal excretion and delayed insulin reduction. Muscle clearance was significantly reduced after root bark cherry treatment. Skin granule treatment for 23 weeks prevented the reduction of nerve fibers (23.6±3.2 fibers/mm). Phloridzin [4] can completely prevent nerve fiber abnormalities.
Enzyme Assay
After red cells are hemolyzed, sealed ghosts can be obtained by adding 4×10-3 M ATP and 5×10-3 M MgCl2, either with or without 5×10-4 M Phlorizin (final concentration). After incubating ghosts equivalent to 0.4-0.45 mL of the original blood cells for 45 or 90 minutes with 0.9 mL of Medium A and 86RbCl, the radioactivity in 200 μL of the supernatant is measured. After incubation, the increase in inorganic phosphate indicates the ATPase activity in the resealed ghosts.
Cell Assay
The cell line derived from murine macrophages, RAW264.7, is utilized. The 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay is used to determine the viability of cells. In 96-well plates, cells (105 cells/well) are cultivated and exposed to different Phlorizin concentrations for a full day. After removing the supernatant, the cells are incubated at 37°C for 4 hours with 50 mg/mL of MTT. After washing the plates and adding isopropanol to dissolve the formazone crystals, a microplate reader is used to measure the absorbance values at 570 nm.
Animal Protocol
This study uses female SDT fatty rats. Six weeks of age are used to split the eight SDT fatty rats into two groups: one treated with phenol and the other with a vehicle. Eight female Sprague-Dawley (SD) rats of the same age are used as the control group. Housed in a climate-controlled room with a temperature of 23±3°C, humidity of 55±15%, and a 12-hour lighting cycle, the animals are given unrestricted access to water and their basal diet. For 23 weeks, animals in the Phlorizin treated group receive one subcutaneous injection of phenol (100 mg/kg/day). The animals in the vehicle treated group and the SD rats under control are given 20% propylene glycol.
References

[1]. Endokrynol Pol . 2010 May-Jun;61(3):303-10.

[2]. Diabetes Metab Res Rev . 2005 Jan-Feb;21(1):31-8.

[3]. J Pharmacol Exp Ther . 2008 Mar;324(3):985-91.

[4]. J Biochem . 1977 May;81(5):1511-5.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C21H24O10
Molecular Weight
436.4093
Exact Mass
436.14
Elemental Analysis
C, 57.80; H, 5.54; O, 36.66
CAS #
60-81-1
Related CAS #
Phlorizin dihydrate; 7061-54-3
Appearance
White to light yellow solid powder
SMILES
C1=CC(=CC=C1CCC(=O)C2=C(C=C(C=C2O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)O)O)O)O
InChi Key
IOUVKUPGCMBWBT-QNDFHXLGSA-N
InChi Code
InChI=1S/C21H24O10/c22-9-16-18(27)19(28)20(29)21(31-16)30-15-8-12(24)7-14(26)17(15)13(25)6-3-10-1-4-11(23)5-2-10/h1-2,4-5,7-8,16,18-24,26-29H,3,6,9H2/t16-,18-,19+,20-,21-/m1/s1
Chemical Name
1-[2,4-dihydroxy-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]-3-(4-hydroxyphenyl)propan-1-one
Synonyms
NSC-2833; NSC 2833; NSC2833; Phlorizin; phloridzin; phloretin-2'-β-D-glucopyranoside; AI3-19835; Phloretin 2'-glucoside; Phloretin-2'-O-beta-glucoside; Phlorizoside; Phlorrhizin
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

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: ~87 mg/mL (~199.4 mM)
Ethanol: ~87 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.73 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 (5.73 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 (5.73 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.


Solubility in Formulation 4: 1.75 mg/mL (4.01 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication (<60°C).

Solubility in Formulation 5: 15.15 mg/mL (34.72 mM) in 20% HP-β-CD in Saline (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.2914 mL 11.4571 mL 22.9142 mL
5 mM 0.4583 mL 2.2914 mL 4.5828 mL
10 mM 0.2291 mL 1.1457 mL 2.2914 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.

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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)
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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.
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