Merck
CN
All Photos(1)

Documents

I5879

Sigma-Aldrich

3-Isobutyl-1-methylxanthine

≥99% (HPLC), powder

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
1-Methyl-3-isobutylxanthine, 3,7-Dihydro-1-methyl-3-(2-methylpropyl)-1H-purine-2,6-dione, 3-Isobutyl-1-methyl-2,6(1H,3H)-purinedione, IBMX
Empirical Formula (Hill Notation):
C10H14N4O2
CAS Number:
28822-58-4
Molecular Weight:
222.24
Beilstein:
247859
EC Number:
249-259-3
MDL number:
MFCD00005584
PubChem Substance ID:
24277680
NACRES:
NA.77

Quality Level

200

Assay

≥99% (HPLC)

form

powder

color

white to off-white

mp

200-201 °C (lit.)

solubility

DMSO: 1 M (with gentle warming)
ethanol: 10 mg/mL

storage temp.

−20°C

SMILES string

CC(C)CN1C(=O)N(C)C(=O)c2[nH]cnc12

InChI

1S/C10H14N4O2/c1-6(2)4-14-8-7(11-5-12-8)9(15)13(3)10(14)16/h5-6H,4H2,1-3H3,(H,11,12)

InChI key

APIXJSLKIYYUKG-UHFFFAOYSA-N

Gene Information

human ... PRKAR1A(5573) , PRKAR1AP(5574) , PRKAR1B(5575) , PRKAR2A(5576) , PRKAR2B(5577)
rat ... Adora1(29290) , Adora2a(25369)

Looking for similar products? Visit Product Comparison Guide

General description

3-isobutyl-1-methylxanthine/IBMX is a non-selective, non-specific inhibitor of cAMP and cGMP phosphodiesterases. IBMX can induce melanogenesis, and can be used as a positive control in melanogenesis research. In oocyte research, IBMX assists in maintaining the germinal vesicle (GV) arrest of prophase I oocytes.

Application

3-Isobutyl-1-methylxanthine has been used:
  • in the differentiation of mesenchymal stem cells (MSC)
  • as a culture medium supplement for inducing adipogenic differentiation
  • as a supplement in Krebs-Ringer buffer with HEPES (KRBH) solution for inducing glucose-stimulated insulin secretion (GSIS)
  • in the characterization of adipose-derived mesenchymal stem cells
  • in cyclic adenosine monophosphate (cAMP) assay
  • in phosphodiesterase (PDE) inhibition

Biochem/physiol Actions

The increase in cAMP level as a result of phosphodiesterase inhibition by IBMX activates PKA, leading to decreased proliferation, increased differentiation, and induction of apoptosis. IBMX inhibits phenylephrine-induced release of 5-hydroxytryptamine from neuroendocrine epithelial cells of the airway mucosa (IC50: 1.3 μM). IBMX also serves as an adenosine receptor antagonist. IBMX has been shown to inhibit ion channels in the neuromuscular junction, GH3 cells, and vascular smooth muscle cells. IBMX induces calcium release from intracellular stores in sensory neurons.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the expiration date of Product No. I5879, 3-Isobutyl-1-methylxanthine? 

    We do not assign an expiration date to this product.  We will guarantee the quality of the product for one year from the time of shipment, providing all storage conditions are followed. 

  5. Is Product No. I5879, 3-Isobutyl-1-methylxanthine, appropriate for cell culture use?

    Product No. I5879 is not a cell culture tested product. However, customers may wish to try this product in their cell culture applications.

  6. What is the difference between 3-Isobutyl-1-methylxanthine Product I5879 and I7018?

    Product No. I5879 is reagent grade. Product No. I7018, SigmaUltra grade, has been subjected to additional testing for trace metal impurities.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

A conserved aromatic lock for the tryptophan rotameric switch in TM-VI of seven-transmembrane receptors
Holst B, et al.
The Journal of Biological Chemistry, 285(6), 3973-3985 (2010)
Skin pigmentation enhancers
Comprehensive Series in Photosciences, 3, 637-675 (2001)
Crystal structures of phosphodiesterases 4 and 5 in complex with inhibitor 3-isobutyl-1-methylxanthine suggest a conformation determinant of inhibitor selectivity
Huai Q, et al.
The Journal of Biological Sciences, 279(13), 13095-13101 (2004)
ZebraBeat: a flexible platform for the analysis of the cardiac rate in zebrafish embryos
De L, et al.
Scientific reports, 4, 4898-4898 (2014)
Canine adipose-derived-mesenchymal stem cells do not lose stem features after a long-term cryopreservation
Martinello T, et al.
Research in Veterinary Science, 91(1), 18-24 (2011)
View All Related Papers

Protocols

Guide: Expansion & Differentiation of Human Mesenchymal

TrueGel3D® Hydrogel Plate protocol guides high-throughput culture of human adipose MSCs for screening applications.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service