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

MedKoo CAT#: 202715

CAS#: 1118915-78-8

Description: STA-1474 is a water soluble prodrug of ganetespib (formerly STA-9090). STA-1474 will metabolized to Ganetespib, which is a potent HSP90 inhibitor previously shown to kill canine tumor cell lines in vitro and inhibit tumor growth in the setting of murine xenografts. The purpose of the following study was to extend these observations and investigate the safety and efficacy of STA-1474 in dogs with spontaneous tumors.

Chemical Structure

CAS# 1118915-78-8

Theoretical Analysis

MedKoo Cat#: 202715
Name: STA-1474
CAS#: 1118915-78-8
Chemical Formula: C20H21N4O6P
Exact Mass: 444.11987
Molecular Weight: 444.38
Elemental Analysis: C, 54.06; H, 4.76; N, 12.61; O, 21.60; P, 6.97

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Pricing updated 2021-02-27. Prices are subject to change without notice.

STA-1474 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Synonym: Code name: STA1474.

IUPAC/Chemical Name: 5-hydroxy-2-isopropyl-4-(4-(1-methyl-1H-indol-5-yl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)phenyl dihydrogen phosphate


InChi Code: InChI=1S/C20H21N4O6P/c1-11(2)14-9-15(17(25)10-18(14)30-31(27,28)29)19-21-22-20(26)24(19)13-4-5-16-12(8-13)6-7-23(16)3/h4-11,25H,1-3H3,(H,22,26)(H2,27,28,29)

SMILES Code: O=P(O)(OC1=CC(O)=C(C(N2C3=CC4=C(N(C)C=C4)C=C3)=NNC2=O)C=C1C(C)C)O

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, not 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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 444.38 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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1: London CA, Bear MD, McCleese J, Foley KP, Paalangara R, Inoue T, Ying W, Barsoum J. Phase I evaluation of STA-1474, a prodrug of the novel HSP90 inhibitor ganetespib, in dogs with spontaneous cancer. PLoS One. 2011;6(11):e27018. Epub 2011 Nov 3. PubMed PMID: 22073242; PubMed Central PMCID: PMC3207826.

Additional Information