L-670,596

Potent, selective thromboxane A2/prostaglandin endoperoxide antagonist CAS# 121083-05-4

L-670,596

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L-670,596

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Chemical Properties of L-670,596

Cas No. 121083-05-4 SDF Download SDF
PubChem ID 129360 Appearance Powder
Formula C22H21F2NO4S M.Wt 433.47
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in 1.1eq. NaOH
Chemical Name 2-[6,8-difluoro-9-[(4-methylsulfonylphenyl)methyl]-1,2,3,4-tetrahydrocarbazol-1-yl]acetic acid
SMILES CS(=O)(=O)C1=CC=C(C=C1)CN2C3=C(CCCC3CC(=O)O)C4=CC(=CC(=C42)F)F
Standard InChIKey GMJWAIMJHBTYPD-UHFFFAOYSA-N
Standard InChI InChI=1S/C22H21F2NO4S/c1-30(28,29)16-7-5-13(6-8-16)12-25-21-14(9-20(26)27)3-2-4-17(21)18-10-15(23)11-19(24)22(18)25/h5-8,10-11,14H,2-4,9,12H2,1H3,(H,26,27)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of L-670,596

DescriptionPotent and selective thromboxane A2/prostaglandin endoperoxide receptor antagonist (IC50 = 5.5 nM). Inhibits U-44069-induced contractions of guinea pig trachea (pA2 = 9.0) and human platelet aggregation in vitro (IC50 = 6.5 nM). Also prevents thromboxane-mediated endothelial cell death. Orally active in vivo.

L-670,596 Dilution Calculator

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Preparing Stock Solutions of L-670,596

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.307 mL 11.5348 mL 23.0696 mL 46.1393 mL 57.6741 mL
5 mM 0.4614 mL 2.307 mL 4.6139 mL 9.2279 mL 11.5348 mL
10 mM 0.2307 mL 1.1535 mL 2.307 mL 4.6139 mL 5.7674 mL
50 mM 0.0461 mL 0.2307 mL 0.4614 mL 0.9228 mL 1.1535 mL
100 mM 0.0231 mL 0.1153 mL 0.2307 mL 0.4614 mL 0.5767 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on L-670,596

The pharmacology of L-670,596, a potent and selective thromboxane/prostaglandin endoperoxide receptor antagonist.[Pubmed:2598135]

Can J Physiol Pharmacol. 1989 Sep;67(9):989-93.

L-670,596 ((-)6,8-difluoro-9-rho-methylsulfonyl benzyl-1,2,3,4- tetrahydrocarbazol-1-yl-acetic acid) has been shown to be a potent receptor antagonist as evidenced by the inhibition of the binding of 125I-labeled PTA-OH to human platelets (IC50, 5.5 x 10(-9) M), inhibition of U-44069 induced aggregation of human platelet rich plasma (IC50, 1.1 x 10(-7) M), and competitive inhibition of contractions of the guinea pig tracheal chain induced by U-44069 (pA2,9.0). The compound was also active in vivo as shown by inhibition of arachidonic acid and U-44069 induced bronchoconstriction in the guinea pig (ED50 values, 0.04 and 0.03 mg/kg i.v., respectively), U44069 induced renal vasoconstriction in the pig (ED50, 0.02 mg/kg i.v.), and inhibition of ex vivo aggregation of rhesus monkey platelets to U-44069 (active 1-5 mg/kg p.o.). The selectivity of the compound was indicated by the failure to inhibit, first, ADP-induced human or primate platelet aggregation and, second, bronchoconstriction in the guinea pig in vivo and contraction of the guinea pig tracheal chain in vitro to a variety of agonists. It is concluded that L-670,596 is a potent, selective, orally active thromboxane A2/prostaglandin endoperoxide receptor antagonist.

Role of thromboxane in retinal microvascular degeneration in oxygen-induced retinopathy.[Pubmed:11356793]

J Appl Physiol (1985). 2001 Jun;90(6):2279-88.

Microvascular degeneration is an important event in oxygen-induced retinopathy (OIR), a model of retinopathy of prematurity. Because oxidant stress abundantly generates thromboxane A2 (TxA2), we tested whether TxA2 plays a role in retinal vasoobliteration of OIR and contributes to such vascular degeneration by direct endothelial cytotoxicity. Hyperoxia-induced retinal vasoobliteration in rat pups (80% O2 exposure from postnatal days 5-14) was associated with increased TxB2 generation and was significantly prevented by TxA2 synthase inhibitor CGS-12970 (10 mg x kg(-1) x day(-1)) or TxA2-receptor antagonist CGS-22652 (10 mg x kg(-1) x day(-1)). TxA2 mimetics U-46619 (EC50 50 nM) and I-BOP (EC50 5 nM) caused a time- and concentration-dependent cell death of neuroretinovascular endothelial cells from rats as well as newborn pigs but not of smooth muscle and astroglial cells; other prostanoids did not cause cell death. The peroxidation product 8-iso-PGF2, which is generated in OIR, stimulated TxA2 formation by endothelial cells and triggered cell death; these effects were markedly diminished by CGS-12970. TxA2-dependent neuroretinovascular endothelial cell death was mostly by necrosis and to a lesser extent by apoptosis. The data identify an important role for TxA2 in vasoobliteration of OIR and unveil a so far unknown function for TxA2 in directly triggering neuroretinal microvascular endothelial cell death. These effects of TxA2 might participate in other ischemic neurovascular injuries.

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