Pirarubicin (THP)

Alias: THP; THPADM; THPDOX; 1609RB; Tepirubicin; Tetrahydropyranyl-Doxorubicin; THP-Adriamycin; THP-Doxorubicin; brand names: Pinorubicin; Theprubicine; Therarubicin
Cat No.:V1419 Purity: ≥98%
Pirarubicin (THP; THPADM; THPDOX; 1609RB; THP-Adriamycin; THP-Doxorubicin; Pinorubicin; Theprubicine; Therarubicin) is an analog of anthracycline with potential antitumor activity.
Pirarubicin (THP) Chemical Structure CAS No.: 72496-41-4
Product category: Topoisomerase
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
10mg
25mg
50mg
100mg
250mg
500mg
Other Sizes

Other Forms of Pirarubicin (THP):

  • Pirarubicin Hydrochloride (THP)
Official Supplier of:
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Top Publications Citing lnvivochem Products
Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Pirarubicin (THP; THPADM; THPDOX; 1609RB; THP-Adriamycin; THP-Doxorubicin; Pinorubicin; Theprubicine; Therarubicin) is an analog of anthracycline with potential antitumor activity. It has been used as a topoisomerase II inhibitor to treat a number of cancers.

Biological Activity I Assay Protocols (From Reference)
Targets
Topoisomerase II
ln Vitro

In vitro activity: Pirarubicin is a topoisomerase II inhibitor[1]. Pirarubicin demonstrates inhibitory effects on Ehrlich and M5076 cells, with IC50 values of 0.078 and 0.366 μM, respectively. Because topoisomerase II is expressed much less in M5076 cells than in Ehrlich cells, pirarubicin is less cytotoxic to M5076 cells than to Ehrlich cells[2]. The effects of pirarubicin (2.5, 5, 10 μg/mL) on bladder cancer (T24, EJ, 5637, J82, and UM-UC-3) cells show a significant dose-dependent induction of autophagy. Furthermore, in bladder cancer cells, pirarubicin (5 μg/mL) induces apoptosis by inhibiting mTOR/p70S6K/4E-BP1, and this effect is amplified by inhibiting autophagy[3].

ln Vivo
Pirarubicin (18 mg/kg, i.v.) dramatically increases serum levels of BNP, CK-MB, CTnT, LDH, and MDA when compared to the control group in rats with acute cardiac toxicity. In the acute cardiac toxicity model, pirarubicin also diminishes heart rate, depresses R-wave voltage, and prolongs QT intervals [4].
Cell Assay
Cell survival analysis is done using MTS. In short, 96-well plates are used to plate cells in triplicate, with 2 × 103 cells per well, and the cells are then cultured in growth medium. Following that, cells are exposed to pirarubicin for 24 hours at three different concentrations: 2.5 μg/mL, 5 μg/mL, and 10 μg/mL. Once added, the MTS reagent (5 mg/mL) is incubated for 4 hours at 37°C. A microplate reader is used to measure the absorbance at 490 nm[3].
Animal Protocol
A single injection of 18 mg/kg pirarubicin into the caudal vein creates an acute cardiac toxicity model. Six groups are randomly assigned, each consisting of thirty-six rats: the normal control group, the cardiac injury (THP) model, the low-dose rutin group (25 mg/kg), the middle-dose rutin group (50 mg/kg), and the high-dose rutin group (100 mg/kg). For seven days, rats in the rutin-treated group receive varying doses of rutin and CMC-Na by gavage, along with a single injection of 18 mg/kg pirarubicin into the caudal vein. For six days, sodium carboxymethylcellulose (CMC-Na) is gavaged into the rats in the dexrazoxane-treated group. On day seven, rats receive an intraperitoneal injection of 40 mg/kg dexrazoxane and an injection of 18 mg/kg pirarubicin into the caudal vein. After seven days of CMC-Na gavage, rats in the THP model group receive an injection of 18 mg/kg of pirarubicin into their caudal vein on day seven. Rats in the usual control group are given CMC-Na by gavage for seven days, and on day seven, they are given saline injections into their caudal veins[4].
References

[1]. Cytotoxic effect of topoisomerase II inhibitors against adriamycin- and etoposide-resistant small cell lung cancer sublines. Gan To Kagaku Ryoho. 1993 May;20(7):929-35.

[2]. Relationships between the in vitro cytotoxicity and transport characteristics of pirarubicin and doxorubicin in M5076 ovarian sarcoma cells, and comparison with those in Ehrlich ascites carcinoma cells. Cancer Chemother Pharmacol. 2002 Mar;49(3):244-50. Epub 2002 Jan 8.

[3]. Pirarubicin induces an autophagic cytoprotective response through suppression of the mammalian target of rapamycin signaling pathway in human bladder cancer cells. Biochem Biophys Res Commun. 2015 May 1;460(2):380-5.

[4]. Cardioprotective effects of rutin in rats exposed to pirarubicin toxicity. J Asian Nat Prod Res. 2017 Oct 27:1-13.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C32H37NO12
Molecular Weight
627.64
Exact Mass
627.23
Elemental Analysis
C, 61.24; H, 5.94; N, 2.23; O, 30.59
CAS #
72496-41-4
Related CAS #
95343-20-7
Appearance
Solid powder
SMILES
C[C@H]1[C@H]([C@H](C[C@@H](O1)O[C@H]2C[C@@](CC3=C2C(=C4C(=C3O)C(=O)C5=C(C4=O)C(=CC=C5)OC)O)(C(=O)CO)O)N)O[C@@H]6CCCCO6
InChi Key
KMSKQZKKOZQFFG-YXRRJAAWSA-N
InChi Code
InChI=1S/C32H37NO12/c1-14-31(45-21-8-3-4-9-42-21)17(33)10-22(43-14)44-19-12-32(40,20(35)13-34)11-16-24(19)30(39)26-25(28(16)37)27(36)15-6-5-7-18(41-2)23(15)29(26)38/h5-7,14,17,19,21-22,31,34,37,39-40H,3-4,8-13,33H2,1-2H3/t14-,17-,19-,21+,22-,31+,32-/m0/s1
Chemical Name
(7S,9S)-7-[(2R,4S,5S,6S)-4-amino-6-methyl-5-[(2R)-oxan-2-yl]oxyoxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
Synonyms
THP; THPADM; THPDOX; 1609RB; Tepirubicin; Tetrahydropyranyl-Doxorubicin; THP-Adriamycin; THP-Doxorubicin; brand names: Pinorubicin; Theprubicine; Therarubicin
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 7~10 mg/mL (11.2~15.9 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
View More

Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
View More

Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.5933 mL 7.9664 mL 15.9327 mL
5 mM 0.3187 mL 1.5933 mL 3.1865 mL
10 mM 0.1593 mL 0.7966 mL 1.5933 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
/

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
+
+
+

Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT05287308 Not yet recruiting Drug: pirarubicin
Drug: epirubicin
Breast Cancer Chinese Academy of Medical
Sciences
March 2022 Not Applicable
NCT04437160 Recruiting Drug: Epirubicin or Pirarubicin
Drug: Cyclophosphamide
Triple Negative Breast Cancer Chinese Academy of Medical
Sciences
February 1, 2020 Phase 2
NCT02613026 Completed Drug: Pirarubicin
Drug: Docetaxel
Breast Neoplasms 307 Hospital of PLA July 2009 Phase 3
NCT03342300 Withdrawn Drug: pegylated liposomal
doxorubicin
Drug: pirarubicin
Overall Survival
Toxicity
Peking University People's
Hospital
November 6, 2017 Phase 2
Phase 3
Contact Us Back to top