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

MedKoo CAT#: 204440

CAS#: 1228237-57-7 (disodium salt)

Description: ARQ 736 is a potent and selective BRAF inhibitor. ARQ 736 is selectively potent in killing cancer cell lines harboring at least one mutated BRAF allele. BRAF mutations were detected in over 60% of melanomas and may account for a significant proportion of colon cancer patients whose tumors are resistant to anti-EGFR therapy. The B-Raf protein is a key signaling molecule in the mitogen activated protein kinase (MAPK) signaling pathway and has been implicated in the pathogenesis of a variety of cancers.

Chemical Structure

CAS# 1228237-57-7 (disodium salt)

Theoretical Analysis

MedKoo Cat#: 204440
Name: ARQ-736
CAS#: 1228237-57-7 (disodium salt)
Chemical Formula: C25H25N8Na2O8PS
Exact Mass:
Molecular Weight: 674.54
Elemental Analysis: C, 44.52; H, 3.74; N, 16.61; Na, 6.82; O, 18.97; P, 4.59; S, 4.75

Size Price Shipping out time Quantity
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Pricing updated 2021-03-08. Prices are subject to change without notice.

ARQ-736, purity > 98%, 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: ARQ736; ARQ-736; ARQ 736.

IUPAC/Chemical Name: sodium (R)-(3-(5-(2-((1-((1-methyl-1H-pyrazol-3-yl)sulfonyl)piperidin-3-yl)amino)pyrimidin-4-yl)imidazo[2,1-b]oxazol-6-yl)phenoxy)methyl phosphate


InChi Code: InChI=1S/C25H27N8O8PS.2Na/c1-31-11-8-21(30-31)43(37,38)32-10-3-5-18(15-32)27-24-26-9-7-20(28-24)23-22(29-25-33(23)12-13-39-25)17-4-2-6-19(14-17)40-16-41-42(34,35)36;;/h2,4,6-9,11-14,18H,3,5,10,15-16H2,1H3,(H,26,27,28)(H2,34,35,36);;/q;2*+1/p-2/t18-;;/m1../s1

SMILES Code: O=P(O[Na])(O[Na])OCOC1=CC=CC(C(N=C2N3C=CO2)=C3C4=NC(N[C@@H](C5)CCCN5S(C6=NN(C=C6)C)(=O)=O)=NC=C4)=C1

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 and soluble in water

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO or water

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 674.54 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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Additional Information

1228237-57-7 (ARQ-736 disodium salt)
1228237-47-5 (ARQ-736free acid)

ARQ 736 is an ATP-competitive pan-RAF kinase inhibitor discovered and developed at ArQule. This compound has been shown pre-clinically to be a potent inhibitor of mutant BRAF (V600E), wild-type BRAF and c-RAF.
Current developer:    ArQule, Inc.