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Camonsertib (RP-3500) is a novel, potent and selective ATR kinase inhibitor (ATRi) that exhibits potent antitumor effects with an IC50: 1.00 nM in biochemical assays.RP-3500 is 30-fold more selective for ATR than mTOR (IC50: 120 nM) and more than 2,000-fold more potent than ATM, DNA-PK and PI3Kα kinases. RP-3500 is 30 times more selective for ATR than mTOR (IC50: 120 nM), and 2,000 times more selective than ATM, DNA-PK and PI3Kα kinases.
Pack Size | Price | Availability | Quantity |
---|---|---|---|
1 mg | $172 | In Stock | |
5 mg | $438 | In Stock | |
10 mg | $637 | In Stock | |
25 mg | $993 | In Stock | |
50 mg | $1,320 | In Stock | |
100 mg | $1,820 | In Stock | |
1 mL x 10 mM (in DMSO) | $495 | In Stock |
Description | Camonsertib (RP-3500) is a novel, potent and selective ATR kinase inhibitor (ATRi) that exhibits potent antitumor effects with an IC50: 1.00 nM in biochemical assays.RP-3500 is 30-fold more selective for ATR than mTOR (IC50: 120 nM) and more than 2,000-fold more potent than ATM, DNA-PK and PI3Kα kinases. RP-3500 is 30 times more selective for ATR than mTOR (IC50: 120 nM), and 2,000 times more selective than ATM, DNA-PK and PI3Kα kinases. |
Targets&IC50 | ATR kinase:1 nM, mTOR:120 nM |
In vitro | METHODS: Characterization of the DNA damage response (DDR) to Camonsertib (RP-3500)-mediated ATR inhibition in LoVo and CW-2 human colon cancer cell lines treated with 1 μmol/L RP-3500 for varying durations up to 24 hours. RESULTS Camonsertib (RP-3500) inhibits CHK1 (Ser345) phosphorylation 1-3 hours after initiation of treatment. [2] METHODS: A biochemical assay for ATR/ATRIP inhibition was established using tagged human ATR and ATRIP purified from mammalian cells, with p53 (Ser15) as the phosphorylation substrate. RESULTS In a LoVo cell-based assay, Camonsertib (RP-3500) inhibited gemcitabine-stimulated phosphorylation of the ATR substrate pCHK1 (Ser345) with an IC50 of 0.33 nM. [2] |
In vivo | METHODS: Patients received Camonsertib (RP-3500) at doses ranging from 5-200 mg once daily or 40 to 80 mg twice daily for 5 days/2 days off (5/2) or 3 days/4 days off ( 3/4), hematological parameters were assessed over a range of doses during treatment. RESULTS Early decrease in monocytes and reticulocytes on day 8 and further decrease in hemoglobin levels on day 15. [1] METHODS: Camonsertib (RP-3500) was used to treat LoVo tumor xenografts in mice, orally administered once a day at a dose of 3/7/15 mg/kg for 17 days, and the effect on LoVo tumor xenografts in mice was observed. RESULTS Camonsertib (RP-3500) treatment of LoVo tumor xenografts in mice produced dose-dependent tumor growth inhibition, with a minimum effective dose (MED) of 7 mg/kg. [2] METHODS: In the CW-2 colon xenograft model, Camonsertib (RP-3500) was administered at doses of 5 and 10 mg/kg to observe the effects on the growth of the mouse CW-2 colon xenograft model. RESULTS Treatment of xenograft mice with Camonsertib (RP-3500) produced statistically significant tumor growth inhibition. [2] |
Alias | RP-3500, ATR inhibitor 4 |
Molecular Weight | 410.47 |
Formula | C21H26N6O3 |
Cas No. | 2417489-10-0 |
Smiles | C[C@@H]1COCCN1c1cc(c2cnn(-c3cc[nH]n3)c2n1)[C@@]1(O)C[C@@H]2CC[C@H](C1)O2 |
Storage | store at low temperature,keep away from direct sunlight | Shipping with blue ice. | |||||||||||||||||||||||||||||||||||
Solubility Information | DMSO: 45.0 mg/mL (109.6 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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