BIO

Cayman Chemical Item Number 13123

MLS 2052; ​GSK3 Inhibitor IX; 6-Bromoindirubin-3'-oxime (CAS 667463-62-9)

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Description

BIO is a cell-permeable bis-indolo (indirubin) compound that acts as a highly potent, selective, reversible, and ATP-competitive inhibitor of GSK3α/β (IC50 = 5 nM). 1,2 Its specificity has been tested against various cyclin-dependent kinases (CDKs) (IC50s = 83, 300, 320, and 10,000 nM for Cdk5/p25, Cdk2/A, Cdk1/B, and Cdk4/D1, respectively). BIO was also tested for its specificity towards many other commonly studied kinases (IC50 ≥10 µM), including MAP kinases, PKA, PKC isoforms, PKG, CK, and IRTK. 1,2 Inhibition of GSK by BIO has been shown to result in the activation of the Wnt signaling pathway and sustained pluripotency in human and mouse embryonic stem cells (ESCs).3 BIO is reported to maintain self-renewal in human and mouse ESCs as well as induce the differentiation of neonatal cardiomyocytes.4

1. Meijer, L., Skaltsounis, A., Magiatis, P., et al. GSK-3-selective inhibitors derived from tyrian purple indirubins. Chem Biol 10 1255-1266 (2003).

2. Polychronopoulos, P., Magiatis, P., Skaltsounis, A., et al. Structural basis for the synthesis of indirubins as potent and selective inhibitors of glycogen synthase kinase-3 and cyclin-dependent kinases. J Med Chem 47 935-946 (2004).

3. Sato, N., Meijer, L., Skaltsounis, L., et al. Maintenance of pluripotency in human and mouse embryonic stem cells through activation of Wnt signaling by a pharmacological GSK-3-specific inhibitor. Nat Med 10(1) 55-63 (2004).

4. Tseng, A., Engel, F.B., and Keating, M.T. The GSK-3 inhibitor BIO promotes proliferation in mammalian cardiomyocytes. Chem Biol 13 957-963 (2006).

Synonyms
  • MLS 2052
  • ​GSK3 Inhibitor IX
  • 6-Bromoindirubin-3'-oxime
Formal Name 6-​bromo-​3-​[(3E)-​1,​3-​dihydro-​3-​(hydroxyimino)-​2H-​indol-​2-​ylidene]-​1,​3-​dihydro-​(3Z)-​2H-​indol-​2-​one
CAS Number 667463-62-9
Molecular Formula C16H10BrN3O2
Formula Weight 356.2
Formulation A crystalline solid
Purity ≥98%
λmax 224, 254, 281, 291, 330, 344, 503 nm
Stability 2 years
Storage -20°C
Shipping Room temperature in continental US; may vary elsewhere
SMILES
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O/N=C1/C(=C2\C(=O)​Nc3cc(Br)​ccc/23)​\Nc2ccccc\12
InCHI Code
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​1S/C16H10BrN3O2/c17-8-5-6-9-12(7-8)​19-16(21)​13(9)​15-14(20-22)​10-3-1-2-4-11(10)​18-15/h1-7,18,22H,(H,19,21)​/b15-13-,20-14+
InCHI Key
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DDLZLOKCJHBUHD-WAVHTBQISA-N

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Size Price Quantity Subtotal
1 mg $25.00 $0.00
5 mg $99.00 $0.00
10 mg $138.00 $0.00
25 mg $313.00 $0.00
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Cayman Chemical was formed over thirty years ago by demonstrating the value of naturally growing gorgonian corals as a renewable, economically viable source of prostaglandins. Today we operate our business knowing that we owe our start to the renewable resources our environment had provided. As Cayman Chemical continues to grow we consistently evaluate our business processes to ensure we are operating at the highest environmental standards.

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Ann Arbor, Michigan 48108 USA

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