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

MedKoo CAT#: 205928

CAS#: 122110-53-6

Description: Pivanex, also known as AN-9, is a histone deacetylase inhibitor analog of butyric acid that causes apoptosis of cancer cells through signaling cellular differentiation. AN-9 exerts a significant anticancer activity in vitro and in vivo.

Chemical Structure

CAS# 122110-53-6

Theoretical Analysis

MedKoo Cat#: 205928
Name: Pivanex
CAS#: 122110-53-6
Chemical Formula: C10H18O4
Exact Mass: 202.12051
Molecular Weight: 202.25
Elemental Analysis: C, 59.39; H, 8.97; O, 31.64

Size Price Shipping out time Quantity
5mg USD 225 2 Weeks
10mg USD 360 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-08. Prices are subject to change without notice.

Pivanex, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Synonym: Pivanex, AN9, pivaloyloxymethyl butyrate, Titan.

IUPAC/Chemical Name: (pivaloyloxy)methyl butyrate


InChi Code: InChI=1S/C10H18O4/c1-5-6-8(11)13-7-14-9(12)10(2,3)4/h5-7H2,1-4H3


Solid powder

>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).

Soluble in DMSO

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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 202.25 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.

Select a batch to recalculate based on the batch molecular weight:
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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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

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 1: Rabizadeh E, Shaklai M, Eisenbach L, Nudelman A, Rephaeli A. Esterase inhibitors diminish the modulation of gene expression by butyric acid derivative, pivaloyloxymethyl butyrate (AN-9). Isr J Med Sci. 1996 Dec;32(12):1186-91. PubMed PMID: 9007151.

2: Zimra Y, Wasserman L, Maron L, Shaklai M, Nudelman A, Rephaeli A. Butyric acid and pivaloyloxymethyl butyrate, AN-9, a novel butyric acid derivative, induce apoptosis in HL-60 cells. J Cancer Res Clin Oncol. 1997;123(3):152-60. PubMed PMID: 9119880.

3: Cutts SM, Rephaeli A, Nudelman A, Hmelnitsky I, Phillips DR. Molecular basis for the synergistic interaction of adriamycin with the formaldehyde-releasing prodrug pivaloyloxymethyl butyrate (AN-9). Cancer Res. 2001 Nov 15;61(22):8194-202. PubMed PMID: 11719450.

4: Hobdy E, Murren J. AN-9 (Titan). Curr Opin Investig Drugs. 2004 Jun;5(6):628-34. Review. PubMed PMID: 15242252.

5: Reid T, Valone F, Lipera W, Irwin D, Paroly W, Natale R, Sreedharan S, Keer H, Lum B, Scappaticci F, Bhatnagar A. Phase II trial of the histone deacetylase inhibitor pivaloyloxymethyl butyrate (Pivanex, AN-9) in advanced non-small cell lung cancer. Lung Cancer. 2004 Sep;45(3):381-6. PubMed PMID: 15301879.

6: Blank-Porat D, Gruss-Fischer T, Tarasenko N, Malik Z, Nudelman A, Rephaeli A. The anticancer prodrugs of butyric acid AN-7 and AN-9, possess antiangiogenic properties. Cancer Lett. 2007 Oct 18;256(1):39-48. Epub 2007 Jul 3. PubMed PMID: 17611019.

7: Tarasenko N, Nudelman A, Tarasenko I, Entin-Meer M, Hass-Kogan D, Inbal A, Rephaeli A. Histone deacetylase inhibitors: the anticancer, antimetastatic and antiangiogenic activities of AN-7 are superior to those of the clinically tested AN-9 (Pivanex). Clin Exp Metastasis. 2008;25(7):703-16. doi: 10.1007/s10585-008-9179-x. Epub 2008 May 28. PubMed PMID: 18506586.

Additional Information