WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 206024

CAS#: 718630-59-2 (free base)

Description: PHA-793887 is an inhibitor of multiple cyclin dependent kinases (CDK) with activity against CDK2, CDK1 and CDK4. PHA-793887 was cytotoxic for leukemic cell lines in vitro, with IC(50) ranging from 0.3 to 7 microM. In colony assays PHA-793887 showed very high activity against leukemia cell lines, with an IC(50) <0.1 microM indicating that it has efficient and prolonged antiproliferative activity. PHA-793887 induced cell-cycle arrest, inhibited Rb and nucleophosmin phosphorylation. PHA-793887 has promising therapeutic activity against acute leukemias in vitro and in vivo.

Chemical Structure

CAS# 718630-59-2 (free base)

Theoretical Analysis

MedKoo Cat#: 206024
Name: PHA-793887
CAS#: 718630-59-2 (free base)
Chemical Formula: C19H31N5O2
Exact Mass: 361.24778
Molecular Weight: 361.48
Elemental Analysis: C, 63.13; H, 8.64; N, 19.37; O, 8.85

Price and Availability

Size Price Availability Quantity
10.0mg USD 90.0 2 Weeks
25.0mg USD 150.0 2 Weeks
50.0mg USD 250.0 2 Weeks
100.0mg USD 450.0 2 Weeks
200.0mg USD 850.0 2 Weeks
500.0mg USD 1950.0 2 Weeks
1.0g USD 2950.0 2 Weeks
2.0g USD 4950.0 2 Weeks
5.0g USD 8450.0 2 Weeks
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Synonym: PHA793887; PHA 793887; PHA-793887.

IUPAC/Chemical Name: N-(6,6-dimethyl-5-(1-methylpiperidine-4-carbonyl)-1,4,5,6-tetrahydropyrrolo[3,4-c]pyrazol-3-yl)-3-methylbutanamide


InChi Code: InChI=1S/C19H31N5O2/c1-12(2)10-15(25)20-17-14-11-24(19(3,4)16(14)21-22-17)18(26)13-6-8-23(5)9-7-13/h12-13H,6-11H2,1-5H3,(H2,20,21,22,25)


Appearance: White Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not soluble in water.

Shelf Life: >5 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 361.48 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Massard C, Soria JC, Anthoney DA, Proctor A, Scaburri A, Pacciarini MA, Laffranchi B, Pellizzoni C, Kroemer G, Armand JP, Balheda R, Twelves CJ. A first in man, phase I dose-escalation study of PHA-793887, an inhibitor of multiple cyclin-dependent kinases (CDK2, 1 and 4) reveals unexpected hepatotoxicity in patients with solid tumors. Cell Cycle. 2011 Mar 15;10(6):963-70. Epub 2011 Mar 15. PubMed PMID: 21368575.

2: Zoubir M, Flament C, Gdoura A, Bahleda R, Litvinova E, Soumelis V, Conforti R, Viaud S, Soria JC, Kroemer G, Zitvogel L, Chaput N. An inhibitor of cyclin-dependent kinases suppresses TLR signaling and increases the susceptibility of cancer patients to herpesviridae. Cell Cycle. 2011 Jan 1;10(1):118-26. Epub 2011 Jan 1. PubMed PMID: 21200142.

3: Iorio F, Bosotti R, Scacheri E, Belcastro V, Mithbaokar P, Ferriero R, Murino L, Tagliaferri R, Brunetti-Pierri N, Isacchi A, di Bernardo D. Discovery of drug mode of action and drug repositioning from transcriptional responses. Proc Natl Acad Sci U S A. 2010 Aug 17;107(33):14621-6. doi: 10.1073/pnas.1000138107. Epub 2010 Aug 2. PubMed PMID: 20679242; PubMed Central PMCID: PMC2930479.

4: Locatelli G, Bosotti R, Ciomei M, Brasca MG, Calogero R, Mercurio C, Fiorentini F, Bertolotti M, Scacheri E, Scaburri A, Galvani A, Pesenti E, De Baere T, Soria JC, Lazar V, Isacchi A. Transcriptional analysis of an E2F gene signature as a biomarker of activity of the cyclin-dependent kinase inhibitor PHA-793887 in tumor and skin biopsies from a phase I clinical study. Mol Cancer Ther. 2010 May;9(5):1265-73. doi: 10.1158/1535-7163.MCT-09-1163. Epub 2010 Apr 27. PubMed PMID: 20423997.

5: Alzani R, Pedrini O, Albanese C, Ceruti R, Casolaro A, Patton V, Colotta F, Rambaldi A, Introna M, Pesenti E, Ciomei M, Golay J. Therapeutic efficacy of the pan-cdk inhibitor PHA-793887 in vitro and in vivo in engraftment and high-burden leukemia models. Exp Hematol. 2010 Apr;38(4):259-269.e2. doi: 10.1016/j.exphem.2010.02.004. Epub 2010 Feb 16. PubMed PMID: 20167248.

6: Brasca MG, Albanese C, Alzani R, Amici R, Avanzi N, Ballinari D, Bischoff J, Borghi D, Casale E, Croci V, Fiorentini F, Isacchi A, Mercurio C, Nesi M, Orsini P, Pastori W, Pesenti E, Pevarello P, Roussel P, Varasi M, Volpi D, Vulpetti A, Ciomei M. Optimization of 6,6-dimethyl pyrrolo[3,4-c]pyrazoles: Identification of PHA-793887, a potent CDK inhibitor suitable for intravenous dosing. Bioorg Med Chem. 2010 Mar 1;18(5):1844-53. doi: 10.1016/j.bmc.2010.01.042. Epub 2010 Jan 25. PubMed PMID: 20153204.

Additional Information

  Related CAS#
718630-59-2 (free base)
718630-60-5 ( HCl salt)