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Buformin

Alias: Buformin; W-37; W37; W 37; H 224
Cat No.:V11178 Purity: ≥98%
Buformin (NSC-528218; 1-butylbiguanide) is an orally bioavailableAMPKactivator approved for use as anantidiabetic drug.
Buformin
Buformin Chemical Structure CAS No.: 692-13-7
Product category: AMPK
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100mg
250mg
500mg
1g
Other Sizes

Other Forms of Buformin:

  • Buformin hydrochloride
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description

Buformin (NSC-528218; 1-butylbiguanide) is an orally bioavailable AMPK activator approved for use as an antidiabetic drug. It is structurally related to metformin and phenformin and is a member of the biguanide class. Buformin works in vivo by reducing blood glucose synthesis and hepatic gluconeogenesis. Silubin, a brand name for buformin, was sold by the German pharmaceutical company Grünenthal. Buformin increases insulin sensitivity and glucose uptake into cells, delays gastrointestinal absorption of glucose, and prevents the liver from synthesizing glucose. The biguanides, including buformin, are antihyperglycemic rather than hypoglycemic medications. They lessen basal and postprandial hyperglycemia in diabetics rather than causing hypoglycemia. Biguanides may counteract glucagon's effects, lowering fasting glucose levels.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
Buformin (0–10 mM; 5 days) inhibits the growth of SKBR3 and BT474 cells in a concentration-dependent manner; the IC50 values for erbB-2–overexpressing SKBR3 and BT474 cells are 246.7 M and 98.6 M, respectively[1]. Buformin (0-3 mM; 48 hours) increases the percentage of cells in G0/G1 phase and reduced the percentage of cells in S phase, especially in the SKBR3 cells[1]. Buformin (0–3 mM; 24 hours) inhibits Akt activation/phosphorylation in both SKBR3 and BT474 cells and suppresses RTK activation, including erbB-2 and IGF1R signaling downstream[1].
ln Vivo
Buformin (oral administation; 7.6 mmol/kg of chow; 7 days) has significantly decreased tumor weights and volumes, and MMTV-erbB-2 transgenic mice show decreased mammary morphogenesis and proliferation[1].
References

[1]. Amanda B Parris, et al. Buformin Inhibits the Stemness of erbB-2-overexpressing Breast Cancer Cells and Premalignant Mammary Tissues of MMTV-erbB-2 Transgenic Mice. J Exp Clin Cancer Res

[2]. Buformin Suppresses Proliferation and Invasion via AMPK/S6 Pathway in Cervical Cancer and Synergizes With Paclitaxel. Cancer Biol Ther. 2018 Jun 3;19(6):507-517.

Additional Infomation
Buformin is a member of the class of biguanides that is biguanide substituted by a butyl group at position 1. It is an antidiabetic drug with potential antitumor effect. It has a role as a hypoglycemic agent, a geroprotector, a radiosensitizing agent, an antineoplastic agent and an antiviral agent. It is functionally related to a biguanide.
Buformin is an anti-diabetic drug of the biguanide class, chemically related to metformin and phenformin. It was withdrawn from the market in most countries due to a high risk of causing lactic acidosis.
Buformin is an agent belonging to the biguanide class of antidiabetics with antihyperglycemic activity. Buformin is not metabolized and is excreted in the urine. This agent has been withdrawn from the market due to its elevated risk of lactic acidosis.
An oral hypoglycemic agent that inhibits gluconeogenesis, increases glycolysis, and decreases glucose oxidation.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C6H15N5
Molecular Weight
157.2168
Exact Mass
157.133
Elemental Analysis
C, 45.84; H, 9.62; N, 44.55
CAS #
692-13-7
Related CAS #
Buformin hydrochloride;1190-53-0;Buformin-d9 hydrochloride
PubChem CID
2468
Appearance
Solid powder
Density
1.22g/cm3
Boiling Point
322.7ºC at 760 mmHg
Flash Point
148.9ºC
Index of Refraction
1.568
LogP
1.475
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
1
Rotatable Bond Count
4
Heavy Atom Count
11
Complexity
156
Defined Atom Stereocenter Count
0
SMILES
CCCCNC(=N)NC(=N)N
InChi Key
XSEUMFJMFFMCIU-UHFFFAOYSA-N
InChi Code
InChI=1S/C6H15N5/c1-2-3-4-10-6(9)11-5(7)8/h2-4H2,1H3,(H6,7,8,9,10,11)
Chemical Name
1-Butylbiguanide
Synonyms
Buformin; W-37; W37; W 37; H 224
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 6.3605 mL 31.8026 mL 63.6051 mL
5 mM 1.2721 mL 6.3605 mL 12.7210 mL
10 mM 0.6361 mL 3.1803 mL 6.3605 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

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
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.

Clinical Trial Information
NCT Number Status Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT01584232 Completed Drug: LY2189265
Drug: Insulin glargine
Type 2 Diabetes Mellitus Eli Lilly and Company April 2012 Phase 3
NCT02476760 Completed Drug: Insulins
Drug: DPP-4 inhibitors
Diabetes Mellitus, Type 2 Canadian Network for
Observational Drug
Effect Studies, CNODES
March 2014
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