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Iniparib

Cat. No. M1972
Iniparib Structure
Synonym:

BSI-201, NSC-746045, IND-71677

Size Price Availability Quantity
10mg USD 80  USD80 In stock
50mg USD 260  USD260 In stock
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Quality Control & Documentation
Biological Activity

Iniparib (BSI-201) is a potent small-molecule Poly(ADP-ribose) polymerase (PARP1) inhibitor for cancer treatment. Poly(ADP-ribose) polymerase (PARP) is a critical DNA repair enzyme involved in DNA single-strand break repair via the base excision repair pathway. PARP1 is activated by DNA damage. BSI-201 was the first putative PARP inhibitor to commence phase III clinical trials. Iniparib (BSI-201) produces rapid apoptosis in various cancer cell lines with IC50 values ranging from 40-128 μM and is not toxic in Syrian hamsters at doses as high as 200 mg/kg. BSI-201 was well tolerated and there were no changes in blood counts at the end of treatment. Antitumor activity of Iniparib (BSI-201) was confirmed by Caspace-3 and TUNEL staining of OVCAR-3 tumors. The combination of Iniparib and topotecan produced significant antitumor activity (P<0.001) and increased the percentage of complete tumor regression compared with topotecan alone. In addition, PARP-1 inhibitor BSI-201 may exhibit direct antineoplastic activity against cancers defective in DNA repair.

Chemical Information
Molecular Weight 292.03
Formula C7H5IN2O3
CAS Number 160003-66-7
Solubility (25°C) DMSO 50 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Ma W, et al. Proc Natl Acad Sci U S A. Differential effects of poly(ADP-ribose) polymerase inhibition on DNA break repair in human cells are revealed with Epstein-Barr virus.

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Keywords: Iniparib, BSI-201, NSC-746045, IND-71677 supplier, PARP, inhibitors, activators


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