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C3249

Sigma-Aldrich

CR8

≥95% (HPLC)

Synonym(s):

(2R)-2-[[9-(1-Methylethyl)-6-[[[4-(2-pyridinyl)phenyl]methyl]amino]-9H-purin-2-yl]amino]-butanol-1, (R)-2-(1-Hydroxybut-2-ylamino)-6-[4-(2-pyridyl)phenylmethylamino]-9-iso-propylpurine, C&R8

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About This Item

Empirical Formula (Hill Notation):
C24H29N7O
CAS Number:
294646-77-8
Molecular Weight:
431.53
MDL number:
MFCD18785641
UNSPSC Code:
12352200
PubChem Substance ID:
329775030
NACRES:
NA.77

Quality Level

100

Assay

≥95% (HPLC)

form

powder

color

off-white

solubility

DMSO: ≥10 mg/mL

storage temp.

2-8°C

SMILES string

CC[C@H](CO)Nc1nc(NCc2ccc(cc2)-c3ccccn3)c4ncn(C(C)C)c4n1

InChI

1S/C24H29N7O/c1-4-19(14-32)28-24-29-22(21-23(30-24)31(15-27-21)16(2)3)26-13-17-8-10-18(11-9-17)20-7-5-6-12-25-20/h5-12,15-16,19,32H,4,13-14H2,1-3H3,(H2,26,28,29,30)/t19-/m1/s1

InChI key

HOCBJBNQIQQQGT-LJQANCHMSA-N

Biochem/physiol Actions

CR8 is a potent and selective inhibitor of cyclin dependent kinase (CDK1, 2, 5, 7, and 9). CR8 is a more potent pyridyl analogue of roscovitine (Cat. No. R7772). In comparison to roscovirtine, the compound gains in potency toward CK1, which is involved in amyloid-β formation. The R-CR8 enantiomer is slightly more potent than S. CR8 is around 30 times more potent at cellular assay then roscovitine. Acts as a molecular glue to induce cyclin K degradation.

Features and Benefits

This compound is featured on the CDKs page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

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Andrey Shadrin et al.
Microbiology (Reading, England), 158(Pt 11), 2753-2764 (2012-09-15)
The Escherichia coli-infecting bacteriophage T7 encodes a 7 kDa protein, called Gp2, which is a potent inhibitor of the host RNA polymerase (RNAp). Gp2 is essential for T7 phage development. The interaction site for Gp2 on the E. coli RNAp
Dominic P Byrne et al.
The Biochemical journal, 478(4), 735-748 (2021-01-23)
Sulfated carbohydrate metabolism is a fundamental process, which occurs in all domains of life. Carbohydrate sulfatases are enzymes that remove sulfate groups from carbohydrates and are essential to the depolymerisation of complex polysaccharides. Despite their biological importance, carbohydrate sulfatases are
Junfang Wu et al.
Journal of neuroinflammation, 9, 169-169 (2012-07-13)
Traumatic spinal cord injury (SCI) induces secondary tissue damage that is associated with astrogliosis and inflammation. We previously reported that acute upregulation of a cluster of cell-cycle-related genes contributes to post-mitotic cell death and secondary damage after SCI. However, it
Cody W Lewis et al.
Oncotarget, 8(43), 73705-73722 (2017-11-02)
Wee1 kinase is a crucial negative regulator of Cdk1/cyclin B1 activity and is required for normal entry into and exit from mitosis. Wee1 activity can be chemically inhibited by the small molecule MK-1775, which is currently being tested in phase
Katy Billot et al.
American journal of physiology. Renal physiology, 315(1), F57-F73 (2018-03-15)
Following the discovery of (R)-roscovitine's beneficial effects in three polycystic kidney disease (PKD) mouse models, cyclin-dependent kinases (CDKs) inhibitors have been investigated as potential treatments. We have used various affinity chromatography approaches to identify the molecular targets of roscovitine and
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