PU-H54
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MedKoo CAT#: 571301

CAS#: 1454619-13-6

Description: PU-H54 is a purine-based inhibitor of Grp94. Specifically, it is a Grp94-selective resorcinol-based inhibitor isolated through probing of the exclusive binding region of S2 subpocket in Grp94.


Chemical Structure

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PU-H54
CAS# 1454619-13-6

Theoretical Analysis

MedKoo Cat#: 571301
Name: PU-H54
CAS#: 1454619-13-6
Chemical Formula: C18H19N5S
Exact Mass: 337.14
Molecular Weight: 337.450
Elemental Analysis: C, 64.07; H, 5.68; N, 20.75; S, 9.50

Price and Availability

Size Price Availability Quantity
5mg USD 335 2 Weeks
10mg USD 555 2 Weeks
25mg USD 1010 2 Weeks
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Synonym: PU-H54; PU H54; PUH54

IUPAC/Chemical Name: 8-((2,4-dimethylphenyl)thio)-3-(pent-4-yn-1-yl)-3H-purin-6-amine

InChi Key: IIQUFGUOGYICIJ-UHFFFAOYSA-N

InChi Code: InChI=1S/C18H19N5S/c1-4-5-6-9-23-11-20-16(19)15-17(23)22-18(21-15)24-14-8-7-12(2)10-13(14)3/h1,7-8,10-11H,5-6,9,19H2,2-3H3

SMILES Code: CC1=CC(C)=C(SC2=NC3=C(N)N=CN(CCCC#C)C3=N2)C=C1

Appearance: 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

Shelf Life: >2 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

More Info: Hsp90 proteins are responsible for the maturation and activation of more than 300 polypeptides into proteins; they also remature denatured proteins. These products are often involved in signaling pathways implicated in cancer transformation, and thus Hsp90 inhibition has emerged as a combinatorial attack against cancer via a single molecular target. More specifically, in the ER, the Hsp90 form present is Grp94. It matures and transports proteins for signaling and cellular adhesion, which eventually play a role in integrin maturation and cell polarity. This target could play an important role in hepatocellular carcinoma, multiple myeloma, rheumatoid arthritis, and glaucoma. Grp94 is essential during embryonic development and thus represents a nontoxic target that can be inhibited to treat these diseases.

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 337.45 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
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Khandelwal A, Crowley VM, Blagg BSJ. Resorcinol-Based Grp94-Selective Inhibitors. ACS Medicinal Chemistry Letters. 2017 September 1. doi: 10.1021/acsmedchemlett.7b00193