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Cat. No. M3713
YS-49 Structure
Size Price Availability Quantity
5mg USD 80 In stock
10mg USD 138 In stock
50mg USD 480 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

YS-49 protects cells from oxidant injury.YS-49 is an anti-inflammatory agent. YS-49 is a activator of PI3K/Akt signaling. YS-49, an analog of higenamine, induces heme oxygenase (HO-1) in endothelial cells and protects cells from oxidant injury. The compound was reported to inhibit Ang II-stimulated VSMC proliferation through HO-1 production, which inhibits both the JNK pathway and ROS production. A study (JPET) reported that CKD712 (S-YS-49) confer cardiac protection and anti-inflammatory via activation of the PI3K signal pathway. YS-49 and YS-51 showed inhibitory activities to both human and rat platelet aggregation induced by ADP, collagen and epinephrine. YS-49 and YS-51 have therapeutic potential for DIC and/or accompanying multiple organ failure.

Customer Product Validations & Biological Datas
Source Br J Pharmacol (2013). Figure 2. YS-49
Method cell culture
Cell Lines RAW 264.7 cells
Concentrations -
Incubation Time 1 h
Results As shown in Fig. 2, 1 μg/ml LPS significantly induced the morphological change at 2 h, which was subsequently inhibited by CKD712 in a concentration-dependent manner.
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
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 resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 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 resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 386.28
Formula C20H20BrNO2
CAS Number 132836-42-1
Purity >98%
Solubility Water >10 mg/mL
Storage at -20°C

YS 49, 1-(alpha-naphtylmethyl)-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline, regulates angiotensin II-stimulated ROS production, JNK phosphorylation and vascular smooth muscle cell proliferation via the induction of heme oxygenase-1.
Sun JJ, et al. Life Sci. 2008 Mar 12;82(11-12):600-7. PMID: 18262205.

Effects of two tetrahydroisoquinolines (YS-49 and YS-51) on experimental disseminated intravascular coagulation induced by lipopolysaccharide in rats.
Pyo MK, et al. Arzneimittelforschung. 2004;54(11):705-10. PMID: 15612611.

Antithrombotic effects of YS-49 and YS-51--1-naphthylmethyl analogs of higenamine.
Yun-Choi HS, et al. Thromb Res. 2001 Nov 15;104(4):249-55. PMID: 11728526.

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Keywords: YS-49 supplier, JNK, inhibitors

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