Levatin

CAS# 140670-84-4

Levatin

Catalog No. BCN2531----Order now to get a substantial discount!

Product Name & Size Price Stock
Levatin: 5mg $552 In Stock
Levatin: 10mg Please Inquire In Stock
Levatin: 20mg Please Inquire Please Inquire
Levatin: 50mg Please Inquire Please Inquire
Levatin: 100mg Please Inquire Please Inquire
Levatin: 200mg Please Inquire Please Inquire
Levatin: 500mg Please Inquire Please Inquire
Levatin: 1000mg Please Inquire Please Inquire

Quality Control of Levatin

Number of papers citing our products

Chemical structure

Levatin

3D structure

Chemical Properties of Levatin

Cas No. 140670-84-4 SDF Download SDF
PubChem ID 5459226 Appearance Cryst.
Formula C19H20O5 M.Wt 328.36
Type of Compound Diterpenoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
SMILES C=C1CCC23CC(CCC2C14CC(OC4=O)C5=COC=C5)OC3=O
Standard InChIKey UNKJMPBJRRFBEL-MMMABECUSA-N
Standard InChI InChI=1S/C19H20O5/c1-11-4-6-18-8-13(23-16(18)20)2-3-15(18)19(11)9-14(24-17(19)21)12-5-7-22-10-12/h5,7,10,13-15H,1-4,6,8-9H2/t13?,14-,15-,18?,19+/m0/s1
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.

Source of Levatin

The herbs of Croton caudatus Geisel.var.tomentosus Hook

Protocol of Levatin

Structure Identification
Journal of Natural Products, 1992, 55(4):445-449.

Levatin, an 18-Norclerodane Diterpene from Croton levatii.[Reference: WebLink]


METHODS AND RESULTS:
A new ent-norclerodane diterpenoid named Levatin [1] was isolated from the stem bark of Croton levatii. Its structure was elucidated by means of 2D nmr experiments as ent-15,16-epoxy-18-norcleroda-8(17),13(16),14-triene-19,3:20,12S-diolide.

Levatin Dilution Calculator

Concentration (start)
x
Volume (start)
=
Concentration (final)
x
Volume (final)
 
 
 
C1
V1
C2
V2

calculate

Levatin Molarity Calculator

Mass
=
Concentration
x
Volume
x
MW*
 
 
 
g/mol

calculate

Preparing Stock Solutions of Levatin

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.0454 mL 15.2272 mL 30.4544 mL 60.9088 mL 76.1359 mL
5 mM 0.6091 mL 3.0454 mL 6.0909 mL 12.1818 mL 15.2272 mL
10 mM 0.3045 mL 1.5227 mL 3.0454 mL 6.0909 mL 7.6136 mL
50 mM 0.0609 mL 0.3045 mL 0.6091 mL 1.2182 mL 1.5227 mL
100 mM 0.0305 mL 0.1523 mL 0.3045 mL 0.6091 mL 0.7614 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.

Organizitions Citing Our Products recently

 
 
 

Calcutta University

University of Minnesota

University of Maryland School of Medicine

University of Illinois at Chicago

The Ohio State University

University of Zurich

Harvard University

Colorado State University

Auburn University

Yale University

Worcester Polytechnic Institute

Washington State University

Stanford University

University of Leipzig

Universidade da Beira Interior

The Institute of Cancer Research

Heidelberg University

University of Amsterdam

University of Auckland
TsingHua University
TsingHua University
The University of Michigan
The University of Michigan
Miami University
Miami University
DRURY University
DRURY University
Jilin University
Jilin University
Fudan University
Fudan University
Wuhan University
Wuhan University
Sun Yat-sen University
Sun Yat-sen University
Universite de Paris
Universite de Paris
Deemed University
Deemed University
Auckland University
Auckland University
The University of Tokyo
The University of Tokyo
Korea University
Korea University
Featured Products
New Products
 

References on Levatin

Pupillography of a relative afferent pupillary defect.[Pubmed:3953726]

Am J Ophthalmol. 1986 Mar 15;101(3):320-4.

The pupillary reactions during the alternating light test of Levatin consist of bilateral pupillary constriction followed by redilatation each time the light moves from one eye to the other. The pupils constrict less and redilate more in an eye with an optic nerve lesion than in the unaffected fellow eye. The amplitude of pupillary responses and the average pupil size decrease when the light is alternated more rapidly. Placing neutral density filters over the better eye has the effect of decreasing the amplitude of pupillary responses when that eye is stimulated while increasing responses of the diseased eye. Because of contraction anisocoria and physiologic anisocoria, the most reliable pupillographic and clinical criterion for diagnosing a relative afferent pupillary defect using the alternating light test is an initial pupillary constriction in the suspected eye that is smaller with direct than with consensual stimulation.

Keywords:

Levatin,140670-84-4,Natural Products, buy Levatin , Levatin supplier , purchase Levatin , Levatin cost , Levatin manufacturer , order Levatin , high purity Levatin

Online Inquiry for:

      Fill out the information below

      • Size:Qty: - +

      * Required Fields

                                      Result: